The safety analysis for LMFBRs requires the knowledge of the mechanical behavior of the hexagonal can of a fuel subassembly undergoing instantaneous total plugging. The problem is quite complicated because besides plastic deformation due to thermal and pr...
National Technical Information Service (NTIS)
A powerful multidimensional fuels performance analysis capability, applicable to both steady and transient fuel behavior, is developed based on enhancements to the commercially available ABAQUS general-purpose thermomechanics code. Enhanced capabilities are described, including: UO2 temperature and burnup dependent thermal properties, ...
Energy Citations Database
A powerful multidimensional fuels performance capability, applicable to both steady and transient fuel behavior, is developed based on enhancements to the commercially available ABAQUS general-purpose thermomechanics code. Enhanced capabilities are described, including: UO2 temperature and burnup dependent thermal properties, solid and ...
Thermomechanical performance of the ITER breeding blanket is an important design issue because it requires first, that the thermal expansion mismatch between the blanket structure and the blankets internals (such as, beryllium multiplier and tritium breeders) can be accommodated without creating high stresses, and second, that the thermomechanical ...
... Service life; Finite element analysis ... Resistance heating; ABAQUS computer program ... THERMOMECHANICS, *HEATING ELEMENTS, STRESSES ...
DTIC Science & Technology
, against blast loads. For this study the finite element code ABAQUS will be used to develop the various element package ABAQUS to model various types of contact simulations and material behavior, which may models of these 3 connection tests will be prepared using the FE code ABAQUS. The finite ...
E-print Network
feamac.for contains the ABAQUS UMAT and UEXPAN subroutines that call the ... This will cause ABAQUS to compile the feamac.for code and link it with the ...
NASA Website
... ABAQUS finite element code. Three dimensional finite element models of the pin and coupon ... interface elements within the ABAQUS element library ...
A procedure that models coupled thermo-mechanical deformations of viscoelastic rubber cylinders by employing the ABAQUS finite element code is described. Computational simulations of hysteretic heating are presented for several tall and short rubber cylinders both with and without a steel disk at their centers. The cylinders are ...
are compared; the code ABAQUS was used to compute the FE solution. The same nodal mesh was used in the two) deformed at 14�s (ABAQUS) deformed at 24�s (ABAQUS) Fig. 2 Nodal mesh for the upper half of the double edge 100 11 (MLPG) 22 (MLPG) 11 (ABAQUS) 22 (ABAQUS) t ...
in your model 8 4. Stage C: Creating and editing the ABAQUS input file 10 5. Stage D: Running the model with ABAQUS. 13 6. Stage E: Modelling damage evolution 13 References: 15 #12;4 Ris�-R-1672(EN) Preface Solver ABAQUS (www.abaqus.com) Own program codes: Program Code ...
A low heat input gas metal arc (GMA) weld overlay process is being investigated as a possible means to repair Savannah River nuclear reactor tanks in the event cracks are detected in the reactor walls. Two-dimensional thermomechanical simulations of a GMA welding process were performed using the finite element code ABAQUS to assist in ...
by coupling CFD and structural analysis codes. MpCCI 3.0 was used for coupling Fluent CFD code with ABAQUS FE code. ES-FSI was used for coupling Star-CD CFD code with ABAQUS. FSI analyses, in which the calculation was carried out entirely in ABAQUS, ...
This document presents the ABAQUS code validation report which encompasses the current NP-MHTGR fuel and target application of the code. For the NP-MHTGR, the ABAQUS general purpose finite element stress analysis code is used to model the behavior of TRIS...
sandwich panels; Triangular honeycomb core; Doubly-corrugated core; DYSMAS�ABAQUS simulation; Fluid such as ABAQUS/ Explicit (ABAQUS Inc., 2006). To provide context we recall that the impulsive response using the dynamic system mechanics analysis simulation (DYSMAS) code, followed by ABAQUS
A thermoelastic constitutive model for shape memory alloys (SMAs) and SMA hybrid composites (SMAHCs) was recently implemented in the commercial codes MSC.Nastran and ABAQUS. The model is implemented and supported within the core of the commercial codes, s...
Both two-dimensional and three-dimensional infinite element capabilities were developed for incorporation into version 4.6 of the ABAQUS finite element structural mechanics code. The procedures developed are specific to the ''user-defined element'' option...
Applications of the finite element code ABAQUS in dynamic analyses are presented. Some contact with the code is assumed. Focus is on how to write input files under various cases and how to make less mistakes in both writing input files and in analyzing th...
... Recrystallization in Metal Matrix Composites. ... technical terms:, abaqus computer codes ... Categories : LAMINATES AND COMPOSITE MATERIALS. ...
... current and cancelled), Joint Staff and ... squeeze castings, abaqus computer codes ... models, micromechanical finite element models, microstresses ...
... current and cancelled), Joint Staff and ... Title : Finite Element Micromechanical Modelling of a ... and special technical terms:, abaqus computer codes ...
... Tetrahedral continuum elements assigned with isotropic section ... identified employing the ABAQUS Standard finite element code's static ...
... This ETL applies to all HQUSACE elements, major subordinate ... to be used with the ABAQUS general purpose finite element code. ...
... element was predicted by employing the ABAQUS Standard finite element code's subspace ... to those of the conventional element rod and ...
... for Metal Matrix Composites With Weak ... special technical terms:, abaqus computer code ... Categories : LAMINATES AND COMPOSITE MATERIALS. ...
A simple one-dimensional rate-independent model is proposed. It is able to capture responses of a NiTi shape memory alloy wire element to mechanical and thermal loadings. Since the model takes into account martensitic phase transformation as well as deformation processes in the martensite, both shape memory effects and pseudoelasticity can be simulated. The model introduces non-hysteretic ...
NASA Astrophysics Data System (ADS)
using ABAQUS commercial finite element analysis code. The deflection and stress distribution are listed the design of FRP bridge decks and similar structures. ABAQUS commercial finite element analysis code is used for the numerical analysis. Three case studies are investigated to compare the results from ...
constitutive model from the finite element code, ABAQUS, was also used in this study. 2. Pseudo Stress Models strain viscoelastic constitutive model that is incorporated in the finite element code ABAQUS deformation. This finite element constitutive prediction will be referred to as the Cauchy ...
@engin.brown.edu Abstract A user element subroutine (UEL) for ABAQUS/Standard by Becker (1988) that implement a cohesive1 Addendum to `Interface Constitutive Relations for use with the Finite Element Code ABAQUS strain or axi-symmetric configurations. However the Xu and Needleman (1993) exponential cohesive zone
and (4) MicroTex. CPFail-ABAQUS is a code which combines. ABAQUS structural ..... where Pi is the fiber failure probability, M is Weibull modules, T, = ( A1-20) ...
In the present work, constitutive equations for creep damage mechanics are implemented into the finite program ABAQUS using a user supplied subroutine, UMAT. The modified Kachanov-Rabotnov constitutive equation which accounts for inhomogeneity in creep da...
The finite element method is still a predominant technique for the analysis of reinforced concrete (RC) structures and can be a very effective tool to offset expensive experimental techniques. One commercially available finite element code, ABAQUS, has th...
- and293 plastic-part nodes are used to construct a set of interfacial294 cohesion elements. There were is concerned, it included the construction315 of the interfacial cohesion zone, thermo-mechanical material316. The syntax326 of the material file was made consistent with the require-327 ments of Abaqus/Standard (ABAQUS
This report contains the verification and benchmarking performed at the Idaho National Engineering Laboratory (INEL) on ABAQUS and PATRAN for heat transfer calculations. ABAQUS and PATRAN were used to perform the thermal analysis of the Advanced Test Reactor (ATR) loop 2A piping components. These codes are commercially available and ...
Ris�-R-1501(EN) Development of a user element in ABAQUS for modelling of cohesive laws in composite: Development of a user element in ABAQUS for modelling of cohesive laws in composite structures Department: AFM 33 C Integration points and weights 35 D ABAQUS coding for the quadratic line element 37 E Cohesive
simulations were performed with FEM code ABAQUS. With the fatigue test data treatment applica- tion one can e of certain cyclical parameter values needed as a part of ABAQUS analysis input files. The hardening. The hardening parameters obtained from the application analysis re- sults were used in the subsequent ...
a commercial FEM code ABAQUS/Explicit --except for accuracy checks done by comparing experimental and numerical the complete cylinder. As such this geometry may be thought of as an infinitely long curved plate. ABAQUS validation with Fortran show that they are sufficient for ABAQUS/Explicit. Each element is a ...
At the request of the Royal Netherlands Navy (RNLN), numerical calculations on blast-loaded ship bulk-heads were performed with the finite element code ABAQUS. These calculations are a first phase in a more extended investigation to validate and improve a...
... of Defense (DoD) Issuances (current and cancelled), Joint Staff and ... of the Capabilities of the Finite Element Code ABAQUS (Validatie van het ...
... current and cancelled), Joint Staff and ... and test conditions:, finite element methods miscellaneous ... special technical terms:, abaqus computer codes ...
... composites (see also laminate composites), steel, uhcs, elongations, fracture behaviors, castings, vacuum castings, abaqus computer codes ...
... Al Fiber-Reinforced Metal Matrix Composites. ... technical terms:, abaqus computer codes ... Categories : LAMINATES AND COMPOSITE MATERIALS. ...
... Figure 4 shows the finite element mesh around the ... The element size in the weld region was ... with the general-purpose code ABAQUS (Version 6.3 ...
... using Abaqus to build and run the FEM model, an estimated Aero Code to predict a 10% resisting load to the model, and Python Scripting to wrap ...
... The unusual shear behavior in thermoset fiber composites and ... This study makes use of the ABAQUS finite element code (12) ... composite. ...
1984 H. D. Hibbitt, ABAQUS/EPGEN, "A General Purpose Finite Element Code with. Emphasis on Non-Linear Applications," Nuclear Engineering and Design 77, ...
... the Strength of Ductile Matrix Composites. ... narrow side ligaments., composite materials, theoretical ... finite element methods, abaqus computer codes ...
... subjects: basic topics:, composite materials, data ... test conditions:, finite element methods miscellaneous ... technical terms:, abaqus computer codes ...
was simulated with the ABAQUS finite element (FE) code and a special user- defined ... lattice space structures are fixed at the joints, this type of the model is ...
Multiscale Visualization Within Abaqus/CAE Environment ... NASA's Micromechanics Analysis Code with Generalized Method of Cells (MAC/GMC) with ...
... DoD) Issuances (current and cancelled), Joint Staff and ... is a hypersonic package for Abaqus - a set ... with that particular finite element analysis code. ...
... Metal Matrix Composites-I. Experimental ... special technical terms:, abaqus computer codes ... Categories : LAMINATES AND COMPOSITE MATERIALS. ...
... finite element code Abaqus/Explicit, which implemented the Mississippi State University internal state variable (ISV) plasticity-damage model (DMG ...
... Issuances (current and cancelled), Joint Staff and ... have been reported; a finite element analysis of ... VISCO feature of the ABAQUS finite element code ...
... Fiber-Reinforced Metal-Matrix Composites. ... monotonic cooling, abaqus computer codes ... Categories : LAMINATES AND COMPOSITE MATERIALS. ...
... density, and arbitrarily shaped elements that cannot ... was developed to generate finite element models for ... codes such as DYNA3D and ABAQUS. ...
ABAQUS code solves the finite element equilibrium equations directly by a. Newton-Raphson method, ...... simulation using the. Bodner-Partom theory. ...
... and high transverse tensile loads., composite materials, pmc ... tailoring, tensile loads, finite element methods, buckling loads, abaqus codes. ...
... Recently Benet Laboratories acquired the ABAQUS (ref 4) nonlinear finite element code which has powerful ... elements allow the analysis of the full ...
Nastran and ABAQUS. The model may be easily implemented in any code that has the capability for analysis of laminated composite structures with temperature ...
... for application to laminate composites have been ... purpose finite element code ABAQUS, is discussed in ... and thick-section composite laminates; and ...
... current and cancelled), Joint Staff and ... testing and test conditions:, finite element methods, tensile ... special technical terms:, abaqus computer codes ...
such as ABAQUS and. MSC/NASTRAN. An interface code to ANSYS is being prepared. CARES/LIFE .... Weibull plot shows the ranked data failure probability ...
Mar 1, 2011... the numerical model as implemented into the commercial finite element code ABAQUS. ... consistent and cohesive long-term data record. ...
Plasma spraying is known to be a promising process for the manufacturing of Ti/SiC long-fiber composites. However, some improvements remain for this process to be applied in an industrial route. These include: oxygen contamination of the sprayed material through that of titanium particles before and during spraying, damage to fibers due to a high level of thermal stresses induced at the spraying ...
boundaries and interfaces were modelled using a cohesive zone approach. All the calculations were carried out using the commercial finite element code ABAQUS. The results obtained suggest that incompatibil- ities aluminide. The analysis is carried out using the commercial finite element code ABAQUS [9] and the ...
in triaxial test simulations using the commercial finite element code ABAQUS. The material model......................... 53 APPENDIX D. ABAQUS CODE FOR TRIAXIAL TEST SIMULATION....... 55 APPENDIX E. RESULTS FOR TRIAXIAL ...................................................................................27 #12;vi ...
The capability to simulate, by computational codes, metal forming processes is very important for energy savings; indeed, up to now, the best forming processes have been established through experimental tests and many years of experience acquired in the i...
This work presents development of a code to obtain the thermomechanical analysis of fuel rods in the fuel assemblies inserted in the core of BWR reactors. The code uses experimental correlations developed in several laboratories. The development of the co...
reduced order s-method), has been integrated in ABAQUS and verified on several test problems. Keywords] and displacements [15,16] can be embedded at the element level. Cohesive elements that allow for separation along Lagrangian codes, such as LS-DYNA and ABAQUS employ the erosion element algorithm, where element deletion
to fit the experimental phonon dispersion for a flat graphene sheet. However, they did not observe computer code ABAQUS [37]. The shell and the hollow cylinder materials are taken to be linear elastic of (36, 5) SWCNT employing the computer software ABAQUS. Tube No. of 20-node brick elementsa No. of 8
crack propagation [8, 9] and cohesive crack simulation [10, 11]. The method has also been coupled.1.2 Comparison with a standard finite element code In this example, X-FEM and Abaqus [29] results are compared considered in section 4.1.1. The mesh used in Abaqus conforms to the crack sur- 10 hal-00496953,version1-2Jul
Superalloys, mainly consisting of nickel, are used for applications in aerospace as well as in stationary gas turbines. In the temperature range above 800 C the blades, which are manufactured of these superalloys, are subjected to high centrifugal forces ...
Constitutive equations for creep damage mechanics are implemented into the finite element program ABAQUS using a user supplied subroutine, UMAT. A modified Kachanov-Rabotnov constitutive equation which accounts for inhomogeneity in creep damage is used. W...
This document is the User's Manual for ABAQUS/EPGEN, a general purpose finite element computer program, designed specifically to serve advanced structural analysis needs. The program contains very general libraries of elements, materials and analysis proc...
This volume is the Example and Verification Problems Manual for ABAQUS/EPGEN. Companion volumes are the User's, Theory and Systems Manuals. This volume contains two major parts. The bulk of the manual (Sections 1-8) contains worked examples that are discu...
This study presents characterization of thermo-mechanical viscoelastic and long-term behaviors of thick-section multi-layered fiber reinforced polymer composite materials. The studied multi-layered systems belong to a class of thermo-rheologically complex materials, in which both stress and temperature affect the time-dependent material response. The multi-layered composites ...
in the NIKE codes and in ABAQUS. Computational experi- ence indicates ...... simulation of mov- ing boundaries. Each contact surface requires a stiffness. ( penalty ...... tire thickness of the model, a localized, high-rate. "punching" ...
In this work, the conclusive report on the activity, developed in the frame of the European project EUREKA-FASP (EU353), concerning the numerical simulation of the thermal and mechanical response of steel sheets, welded by a laser welding process, is pres...
The numerical simulation of metal forming processes (rolling, extrusion, deep drawing, etc.) is a problem not completely solved at present despite its large industrial interest: a design tool of this type would greatly improve the optimization of the punc...
This paper presents the analysis of friction effects in an automotive industry steel sheet deep-drawing process. Stress analysis was performed with the use of the non-linear codes, ABAQUS and MARC. Descriptions are given of the experimental test that was ...
... The subroutine FRIC in ABAQUS code [25] is called ... behavior of a C/C composite multidisk clutch, consisting ... wear tests of C/C composites found in ...
fasteners to join heavily-loaded areas, while bonded joints have been used only for select locations. ... structural components using the finite element analysis ( FEA) method. Several ..... algorithm in the ABAQUS finite element code16 that was ...
Feb 23, 2011 ... FEAMAC couples the efficient micromechanics capabilities of MAC/GMC with the Abaqus finite element code for nonlinear multi- scale analysis of composite structures (including damage, failure, and viscoplasticity). ...
... available finite element code ABAQUS (Hibbitt, Karlsson ... fiber/Vinyl ester matrix composites were used in ... for Glass fiber/Epoxy composite along the ...
Feasibility studies on the simulation of the metal sheet laser welding process for the ship building industry, using the implicit version of ABAQUS code, have been made for an european EUREKA-FASP project. In this frame a strategy of approch has been set ...
The simulation of the mechanical response of steel sheets, due to the heating during welding processes by a laser source beam, obtained by Abaqus standard code, is discussed. Different hypotheses for the material behaviour at temperatures greater than the...
An approach for assessing the delamination propagation and growth capabilities in commercial finite element codes was developed and demonstrated for the Virtual Crack Closure Technique (VCCT) implementations in ABAQUS. The Double Cantilever Beam (DCB) spe...
U casting was studied using a combined experimental and modeling approach; the U is cast into graphite molds using vacuum induction melting. Mold design and process parameters were varied. FLOW-3D and ABAQUS codes were used. Temperature predictions were c...
An approach to the simulation of the thermal shaping or bending of large steel sheets, by ABAQUS/Standard code, will be presented. A thermal source representation, which can produce a temperature distribution, adequate to the processes which must be consi...
Numerical simulation of electron beam welding of blanket segments was performed using non-linear finite element code ABAQUS. The thermal and stress fields were assumed uncoupled, while preserving the temperature dependency of all material parameters. The ...
The purpose of this analysis is to provide rational judgment for the most pernicious impact angle of dropping. A numerical simulation method, finite element analysis, is adopted for this study. The general-purpose finite element analysis code, ABAQUS(R) [HKS, 1998], facilitates the numerical computation. The geometrical finite element modeling is developed ...
DOE Information Bridge
This workbook is written to accompany a set of videotape lectures that have been produced to introduce a new user to the ABAQUS program. ABAQUS is a general purpose, production oriented, finite element code. It is very simple to use, and has capabilities for a wide range of nonlinear applications. The lectures describe the basic ...
FRAPCON fuel performance code is being modified to be able to model performance of the nuclear fuels of interest to the Global Nuclear Energy Partnership (GNEP). The present report documents the effort for verification of the FRAPCON thermal model. It was found that, with minor modifications, FRAPCON thermal model temperature calculation agrees with that of the commercial ...
This document is the Systems Manual for ABAQUS/EPGEN, a general purpose finite element computer program designed specifically to serve advanced structural analysis needs. ABAQUS/EPGEN is a large, modular, software system, made up of libraries of finite elements, constitutive models, arithmetic routines, and executive level routines that control the flow ...
The present report is the user's manual for the computer code RODSWELL developed at the JRC-Ispra for the thermomechanical analysis of LWR fuel rods under simulated loss-of-coolant accident (LOCA) conditions. The code calculates the variation in space and...
A new geometry capability has been implemented in MCNP that permits the existence of an unstructured mesh with its legacy Constructive Solid Geometry (CSG) capability to form a hybrid geometry. This new feature enables the user to build complex 3-D models with Computer Aided Engineering (CAE) tools, such as Abaqus, and perform a neutronics analysis on the same geometry mesh ...
In this investigation, a thermo-mechanical model of pebble beds is adopted and developed based on experiments by Dr. Reimann at Forschungszentrum Karlsruhe (FZK). The framework of the present material model is composed of a non-linear elastic law, the Drucker-Prager-Cap theory, and a modified creep law. Furthermore, the volumetric inelastic strain dependent thermal ...
Thermal stress analysis is critical in the design and operation of energy-efficient power plant components and engines as well as in nuclear and aerospace systems. The Finite Element Method in Thermomechanics attempts to embrace a wide range of topics in the nonlinear thermomechanical analysis. The book covers the basic principles of the finite element ...
The biphasic cartilage model proposed by Mow et al. (1980) has proven successful to capture the essential mechanical features of articular cartilage. In order to analyse the joint contact mechanics in real, anatomical joints, the cartilage model needs to be implemented into a suitable finite element code to approximate the irregular surface geometries of such joints. However, ...
PubMed
This report documents the evaluation of the thermal and thermomechanical models and codes for repository subsurface design and for design constraint analysis. The evaluation was based on a survey of the thermal and thermomechanical codes and models that are applicable to subsurface design, followed by a ...
The principal objectives of the work are the development of computer codes with suitable material laws for rock salt and to perform model calculations on the thermomechanical phenomena in the near field of a radioactive waste repository. In particular the...
Based on theoretical analysis, finite element software ABAQUS and MSC.Fatigue were used to establish the forecasting model of fatigue life for laser shot peening (LSP) process. By using a standard stretch test sample of 6061-T6 aluminium alloy, the residual stress field induced by LSP was analyzed with ABAQUS code firstly, and then the ...
Both two-dimensional and three-dimensional infinite element capabilities were developed for incorporation into version 4.6 of the ABAQUS finite element structural mechanics code. The procedures developed are specific to the ''user-defined element'' option available in version 4.6. The theoretical development for the ...
This report discusses ABAQUS-EPGEN, a general-purpose finite element computer code designed specifically to serve advanced structural analysis needs. Volume 1 is the user's manual and addresses the issues of: (1) the program and its terminology; (2) analysis procedures; (3) the element library; (4) material modeling options; (5) input ...
The conditions under which the deposition process in friction stir welding is successful are not fully understood. However, it is known that only under specific thermomechanical conditions does a weld formation occur. If these conditions are not present, void formation will occur leading to a faulty weld. The objective of the present work is to analyse the primary conditions ...
Traditional thermal stress analysis is based on an uncoupled approach in which the thermal problem is solved on a fixed geometry, and the resulting temperatures are then used to load a mechanical problem. In contrast, a fully coupled thermomechanical analysis solves the thermal problem on the deforming geometry and incorporates thermal loads into the mechanical problem. ...
Abstract: An ABAQUS script has been written to aid in the evaluation of the ... Material models from the ABAQUS library may be used or the UMAT routine may ...
Model for Composites provided in Abaqus and typical cohesive elements, ... In damage models such as the ABAQUS COH cohesive elements and the Abaqus ...
High strength steel (HSS) sheet metal hot forming process is investigated by means of numerical simulations. With regard to a reliable numerical process design, the knowledge of the thermal and thermo-mechanical properties is essential. In this article, tensile tests are performed to examine the flow stress of the material HSS 22MnB5 at different strains, strain rates, and ...
In the last two decades the number of innovative applications for advanced materials has been rapidly increasing. Shape memory alloys (SMAs) are an exciting class of these materials which exhibit large reversible stresses and strains due to a thermoelastic phase transformation. SMAs have been employed in the biomedical field for producing cardiovascular stents, shape memory foams have been ...
ABAQUS-EPGEN is a highly sophisticated, nonlinear computer code that allows engineers to perform advanced structural analyses of nuclear and fossil fuel electric generating plants. The code controls time steps and load increments automatically on the basis of user-specified accuracy tolerances. The code models ...
fracture phenomena such as crack-tip rotations, elastic foundations and cohesive zones are discussed. Furthermore, the results also allow an understanding to be developed for the relative roles of shear, cohesive). The analysis was performed numerically using the ABAQUS (version 5.8) finite-element code. The crack tip
of the adhesive bond between the asphalt mastic and aggregates and (2) degradation of the cohesive strength are proposed for predicting adhesive and cohesive moisture-induced damage. To the authors' best knowledge for implementing the model in the well-known finite element code Abaqus. Finally, various aspects of the integrated
-plastic constitutive model for copper. The Weibull criterion is then used to post-treat the finite element computations between copper and ceramic. This problem was studied using the finite element method and the Abaqus code-infinite and since the layer of copper is capable of plastic deformation. #12;- 15 - Therefore, the finite element
tools are being made available in commercial finite element analysis codes, such as ABAQUS�. /Standard, which enable ..... Limitations 8 and 9: Compute minimum specimen length, Lmin, and loading rod length, hp,min. 12. ..... Debonding Failure of Sandwich-Composite Cryogenic Fuel Tank with Internal Core. Pressure ...
The development of structural analysis capabilities to investigate possible accident initiations caused by structural degradation of liquid metal fast breeder reactor (LMFBR) piping is summarized. The ABAQUS finite element code is used to perform a non-li...
mechanical Finite Element Method (Abaqus Standard) (used by author Morra) that uses the tangent operator between various numerical codes (Eulerian and Lagrangian, Finite Element and Finite Difference in the literature. Therefore, it is interesting to study how the different methods deal with this decoupling/lubricating
A thin aluminum window (0.127 mm (0.005-inch) thick x 146 mm (5 3/4-inch) diameter) of 2024-T6 alloy was modeled and analyzed using the ABAQUS non-linear finite element analysis code. A group of windows was fabricated, heat-treated and subsequently tested...
To extract the mode-II cohesive properties of the interface, the finite- element code ABAQUS (version 61 Mixed-mode cohesive-zone models for fracture of an adhesively- bonded polymer-matrix composite S a cohesive-zone approach to model the mixed- mode fracture of adhesive joints made from a polymer
The purpose of this paper is to give a methodology of interfacing two distinct codes: an electromagnetic one (CARIDDI) and a mechanical one (ABAQUS) for the solution of problems concerning back-plate (BP) modeling during plasma disruptions. Finally, the results of the transient magnetomechanical computer simulations are described.
The purpose of this study is to investigate the collapse load of a spherical shell under axial loading on a central boss. The investigation was carried out using an existing lower-bound plastic limit analysis package and the ABAQUS finite element code. Results are obtained for various geometrical parameters and compared with previous analytical and ...
aluminide. The analysis is carried out using the commercial finite element code ABAQUS [8]. The cohesion and the matrix�precipitate interfaces, the grain boundaries and interfaces are modelled using a cohesive zone�interface constitutive relations 2.2.1. Cohesive zone model The matrix grain boundary and precipitate�matrix in- terfaces
Advanced nuclear reactors maximize power and/or flux levels for increased performance levels. One of the challenges is accurate prediction of temperatures in the structural components and experiments. An improved methodology utilizing the computer codes MCNP and ABAQUS has been demonstrated in instrumented experiments at the Advanced Test Reactor. The ...
. The cracking was modeled by cohesive zone modeling using the commercial code Abaqus (version 6.6). The explicit in the form of interface cohesive laws, representing the fracture process zone of the fibre/matrix interface. Micromechanical models are use for prediction of composite cohesive laws, representing crack bridging
ANACAP-U is a preprocessor, postprocessor, and concrete material subroutine used for the analysis of concrete structures. ANACAP-U functions in concert with the ABAQUS general purpose finite-element code. This document describes the Quality Assurance process for ANACAP-U version 9-2.2.7 as installed on the SECC.
From the evaluation[1] of the inverse techniques available, it was determined that the Global Local Optimization Code[2] can determine the surface heat flux using known experimental data at various points in the geometry. This code uses a whole domain approach in which an analysis code (such as TOPAZ2D or ABAQUS) ...
The ABAQUS finite element code was used to model a pressurized pipe and subjected to cyclic bending loads to investigate ratcheting. A 1-in. schedule 40 pipe was loaded with a slow (static) cyclic load. The pipe internal pressure was varied from 0 to 6000 psi. In this paper, two types of materials were considered: an elastic perfectly plastic and a ...
During the production of granules of uranium oxide, granules of ion exchange resin, loaded with uranium ions, are burned to remove the resin matrix and leave a uranium oxide ash''. Under some conditions of combustion, the oxide granules are produced in a highly fractured, porous state, while other conditions result in hard, dense, solid granules. ABAQUS, a ...
One of the areas of current interest in the nuclear power industry is the response of containment buildings to internal pressures that may exceed design pressure levels. Evaluating the response of structures under these conditions requires computing beyond design load to the ultimate load of the containment. For concrete containments, this requirement means computing through severe concrete ...
This document is the User's Manual for ABAQUS/EPGEN, a general purpose finite element computer program, designed specifically to serve advanced structural analysis needs. The program contains very general libraries of elements, materials and analysis procedures, and is highly modular, so that complex combinations of features can be put together to model physical ...
A fully coupled thermomechanical diffusion theory describing the thermal and mechanically assisted mass transport of dilute mobile constituents in an elastic solid is extended to include the effects of elastic-plastic deformation. Using the principles of modern continuum mechanics and classical plasticity theory, balance laws and constitutive equations are derived for a ...
CG-DAMS is a finite element based program written specifically for the stability analysis of concrete gravity dams. The code automates the prediction and evaluation of cracking in the dam, along the dam-rock interface, and in the foundation using incremental nonlinear analysis techniques based on the smeared crack'' approach. Its primary application is in ...
A coupled thermo-mechanical model of Ultrasonic Torsional Vibration Assisted Micro-milling (UTVAM) was established with ABAQUS, the primary cause which leads to a decrease in cutting force after adding Ultrasonic Torsional Vibration (UTV) to micro-milling was analyzed. Micro-milling with and without UTV were both carried out on the self-designed UTVAM ...
This paper presents a Finite Element Analysis (FEA) of an adaptive structure that uses multiple Shape Memory Alloy (SMA) wires for actuation. The commercially available FEA program ABAQUS was used to simulate the displacement of an adaptive nozzle structure which is actuated by controlling the power to six SMA wires simultaneously. The SMA wires were modeled within the user ...
SPECTROM-32 is a finite element program for analyzing two-dimensional and axisymmetric inelastic thermomechanical problems related to the geological disposal of nuclear waste. The code is part of the SPECTROM series of special-purpose computer programs th...
MANE 4240/ CIVL 4240: Introduction to Finite Elements Abaqus 6.9SE Handout Professor Suvranu De ..................................................................................................................................4 2. Abaqus SE Installation Instructions ...
. The simulations are carried out with the ABAQUS finite element pack- age. The accuracy of the results element package ABAQUS [Hibbitt et al. 2001]. The effectiveness of the proposed procedure is demonstrated in the ABAQUS finite element package [Hibbitt et al. 2001]. At any stage of a standard ABAQUS iteration ...
The most commonly used solder for electrical interconnections in electronic packages is the near eutectic 60Sn-40Fb alloy. This alloy has a number of processing advantages (suitable melting point of 183C and good wetting behavior). However, under conditions of cyclic strain and temperature (thermomechanical fatigue), the microstructure of this alloy undergoes a heterogeneous ...
In support of probabilistic fracture mechanics (PFM) studies for the High Flux Isotope Reactor (HFIR) Vessel Life Extension Program, a stess analysis of the HB-2 beam tube has been carried out to calculate linear-elastic fracture mechanics (LEFM) stress intensity factors for postulated corner flaws. Employing the ORNOZL mesh generation code and the ABAQUS ...
... Accession Number : ADD204875. Title : Composite Material Models in Abaqus. Descriptive Note : Final Report,. Corporate ...
Results of code calculations for the November 14, 1979, Waste Isolation Pilot Plant (WIPP) Code Benchmark Workshop are compared. The results from five different codes (COUPLEFLO, JAC, SANCHO, SPECTROM, and STEALTH) are given for a problem involving the creep closure of an underground drift. The basic features of the ...
The feasibility of using SMA wires to improve the seal effectiveness has been studied experimentally and numerically. In this article, we present only the numerical study of simulating the thermo-mechanical behavior for an SMA enhanced lip seal, leaving the test setup and results in the experimental counterpart. A pseudo 3D SMA model, considering 1D SMA behavior in the major ...
Calculations performed in this study have shown that the STEALTH code is suitable for the prediction of temperature and stress field in a salt dome where radioactive wastes are stored. The STEALTH version used here has been extended by Wahi et al. (Wa et ...
(Ceramic Analysis and Reliability Evaluation of Structures/Life) code ... researchers coupled ANSYS/PDS with CARES/Life to assess the effects of the ... the component for fully transient thermomechanical loading and cyclic loading. ...
Many aspects of the physical process involved in a pulsed laser interacting with an occlusion in the intra-cranial vascular system are included in the simulation codes LATIS and LATIS3d. Laser light propagation and thermomechanical effects on the occlusio...
The objective of the research project described in this interim report is to develop a qualified methodology for the ultimate load analysis of concrete containment structures. The EPRI-sponsored nonlinear finite element code ABAQUS-EPGEN, which has recently been modified to incorporate a constitutive model for plain concrete and modeling capabilities for ...
It is well known that oxide fuels crack during the first rise to power, with continued fracture occurring during steady operation and especially during power ramps or accidental transients. Fractures have a very strong influence on the stress state in the fuel which, in turn, drives critical phenomena such as fission gas release, fuel creep, and eventual fuel/clad mechanical interaction. Recently, ...
The Process, Purification and Stack Buildings are collocated safety related concrete shear wall structures with plan dimensions in excess of 100 feet. An important aspect of their seismic analysis was the determination of structure soil structure interaction (SSSI) effects, if any. The SSSI analysis of the Process Building, with one other building at a time, was performed with the SASSI computer ...
This volume is the Example and Verification Problems Manual for ABAQUS/EPGEN. Companion volumes are the User's, Theory and Systems Manuals. This volume contains two major parts. The bulk of the manual (Sections 1-8) contains worked examples that are discussed in detail, while Appendix A documents a large set of basic verification cases that provide the fundamental ...
Dynamic three point bending fracture tests performed in a modified Hopkinson Bar are used to obtain material fracture properties (such as the fracture-initiation toughness) at high strain rates. This work presents a three-dimensional numerical analysis of the aforementioned tests, performed by the Finite Element Method, implemented in the commercial code ...
The work presented in this paper is part of a more extensive study the aim of which is to build a complete simulation of the clinching process and subsequent resistance tests. This paper focuses on finite element analyses - that are performed with the ABAQUS code - of the resistance of clinched points to shear test. These analyses are run up to propagation ...
problem in the commercial finite element code ABAQUS [10], by implementing the cohesive zone as a user for avoiding convergence problems in finite element simulations of crack nucleation and growth on cohesive.1088/0965-0393/12/3/007) Abstract Numerical simulations of crack initiation which use a cohesive zone law to model a weak interface
This paper reports on finite element modeling of the stresses in TRISO-coated fuel particles under normal operating conditions that is undertaken with the ABAQUS code. Accurate results for the coating layer stresses are obtained with 30 finite elements in the model and {approximately}100 time steps through the life of the fuel. When compared to an earlier ...
This paper describes a calculational procedure using the ABAQUS finite element code that simulates a carburizing and quench heat treat cycle for automotive gears. The procedure features a numerically efficient 2-phase constitutive model to represent transformational plasticity effects for the austenite/martensite transformation together with refined finite ...
Corrosion damage to a nuclear power plant containment structure can degrade the pressure capacity of the vessel. For the low-carbon, low- strength steels used in containments, the effect of corrosion on material properties is discussed. Strain-to-failure tests, in uniaxial tension, have been performed on corroded material samples. Results were used to select strain-based failure criteria for ...
U casting was studied using a combined experimental and modeling approach; the U is cast into graphite molds using vacuum induction melting. Mold design and process parameters were varied. FLOW-3D and ABAQUS codes were used. Temperature predictions were compared with experimental data from thermcouples in the mold; initial metal and mold temperatures were ...
This paper presents a 3D moisture-stress numerical analysis for timber structures under variable humidity and load conditions. An orthotropic viscoelastic-mechanosorptive material model is specialized on the basis of previous models. Both the constitutive model and the equations needed to describe the moisture flow across the structure are implemented into user subroutines of the ...
Tube-to-tube support interaction characterisitics were determined experimentally on a single tube, multi-span geometry, representative of the Westinghouse Model 51 steam generator economizer design. Results, in part, became input for an autoclave type wear test program on steam generator tubes, performed by Kraftwerk Union (KWU). More importantly, the test data reported here have been used to ...
A series of tests investigating dynamic pulse buckling of a cylindrical shell under axial impact is compared to several 2D and 3D finite element simulations of the event. The purpose of the work is to investigate the performance of various analysis codes and element types on a problem which is applicable to radioactive material transport packages, and ultimately to develop a ...
A test program was undertaken to demonstrate the ability of elastic-plastic finite element methods to predict dynamic inelastic response for simple structural members. Cantilever and fixed-beam specimens were tested to levels that produced plastic straining in the range of 2.0% to 3.0% and permanent sets. Acceleration, strain, and displacement data were recorded for use in analytical correlation. ...
A test program was undertaken to demonstrate the ability of elastic-plastic finite element methods to predict dynamic inelastic response for simple structural members. Cantilever and fixed-beam specimens were tested to levels that produced plastic straining in the range of 2.0% and to 3.0% and permanent sets. Acceleration, strain, and displacement data were recorded for use in analytical ...
of the structures: Pro/Mechanica (PTC, 2001) and ABAQUS/ Standard (HKS, 2003). Both the Pro/Mechanica and ABAQUS as rigid nodes. The element order in the ABAQUS program is controlled manually by the user. In the ABAQUS procedures are compared in Table 2. The differences between the Pro/Mechanica and ...
Finite Element Analysism y Using ABAQUS 2 1 Methods of Analysis in ABAQUS � Interactive mode command procedure � Disadvantage: Need to learn Python language � Analysis input file � At the end, ABAQUS generates analysis input file (text file) 2 � ABAQUS solver reads analysis input file � It is possible
The simulation of nuclear reactor fuel performance involves complex thermomechanical processes between fuel pellets, made of fissile material, and the protective cladding that surrounds the pellets. An important design goal for a fuel is to maximize the life of the cladding thereby allowing the fuel to remain in the reactor for a longer period of time to achieve higher degrees ...
Fast-burst reactors are designed to provide intense, short-duration pulses of neutrons. The fission reaction also produces extreme time-dependent heating of the nuclear fuel. An existing transient-dynamic finite element code was modified specifically to compute the time-dependent stresses and displacements due to thermal shock loads of reactors. ...
UTAH2 is a two-dimensional thermomechanical finite-element code designed to evaluate deformation in a rock mass exhibiting highly anisotropic strength properties. The code was developed by the University of Utah under the US Bureau of Mines. This report i...
The TiCode-12 container is a waste package design proposed for Defense High Level Waste (DHLW) by Sandia National Laboratories. The TiCode-12 container is cylindrical in shape with a spherical (dome-shaped) top. There is concern about the structural integ...
This report presents an assessment of the adaptability of EPRI's one- and two-dimensional STEALTH computer codes to perform transient fuel rod analysis. The ability of the STEALTH code to simulate transient mechanical or thermomechanical loss-of-coolant accident is described. Analytic models of one- and two-dimensional ...
A rate-type creep law is implemented into the computer code TEMP-STRESS for high temperature concrete analysis. The disposition of temperature, pore pressure and moisture for the particular structure in question is provided as input for the thermo-mechanical code. The loss of moisture from concrete also induces material shrinkage which ...
The analysis of the biomechanics of growth and remodeling in soft tissues requires the formulation of specialized pseudoelastic constitutive relations. The nonlinear finite element analysis package ABAQUS allows the user to implement such specialized material responses through the coding of a user material subroutine called UMAT. However, hand ...
This report contains the verification and benchmarking performed at the Idaho National Engineering Laboratory (INEL) on ABAQUS and PATRAN for heat transfer calculations. ABAQUS and PATRAN were used to perform the thermal analysis of the Advanced Test Reac...
reinforced composites are carried out using the commercial finite element program ABAQUS. A smeared. Keywords: Kink band, constitutive model, ABAQUS, fiber misalignment 1. INTRODUCTION Failure by kinking as a user subroutine in the finite element program ABAQUS. Effects of fiber misalignment for elastic
, and the state of (plane) stress is modeled with ABAQUS. The Raman shifts are calculated using previously, and xy at the silicon surface are in good agreement with those calculated with the ABAQUS model. � 2004 orientations of the silicon wafers used in this study. The right-most column is the ABAQUS prediction
a combination of SolidWorks (for modeling) and ABAQUS (for finite element analysis). It is evident from Importation to ABAQUS............................................................6 Calculations files into ABAQUS. While this later proved to offer some difficulties, such problems will later
Some of the experiences gained in the use of ABAQUS program for creep analysis are reported. The ABAQUS program was used to determine the creep behavior of aircraft engine components subject to elevated temperatures and stress. Considerable difficulty was...
Running ABAQUS 6.9 ArulM Britto May 7, 2010 Contents 1 Introduction 2 1.1 Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1.1 ABAQUS/Standard and Explicit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
This is an example problem from Section 1.1.1 of the ABAQUS Example Problem Manual ... problem is for the FEAMAC user to ensure that their ABAQUS/Standard ...
ABAQUS 5.4 is a powerful general purpose finite-element computer program for the radioactive waste tank program. This document describes the verification and validation of ABAQUS 5.4 as installed on the Scientific and Engineering Computing Center.
The results of three-dimensional linear elastic stress analyses of the HFIR HB-2 and HB-3 nozzles are presented in this report. Finite element models were developed using the PATRAN pre-processing code and translated into ABAQUS input file format. A scoping analysis using simple geometries with internal pressure loading was carried out to assess the ...
A mathematical heat-transfer/microstructural model has been developed to predict the evolution of proeutectic austenite, white iron eutectic, and gray iron eutectic during solidification of hypoeutectic cast iron, based on the commercial finite-element code ABAQUS. Specialized routines which employ relationships describing nucleation and growth of equiaxed ...
A physically based one-dimensional shape memory alloy (SMA) model is implemented into the finite element software ABAQUS via a user interface. Linearization of the SMA constitutive law together with complete transformation kinetics is performed and tabulated for implementation. Robust rules for transformation zones of the phase diagram are implemented and a new strategy for ...
This summary report gives an overview of research on the influence of special effects on the ultimate load behavior of concrete containment structures. The special effects analyses that were performed include containment response under combined pressure and temperature, shear dislocation at a major concrete crack, wall discontinuity at the wall-basemat juncture, flawed liner, and thermal buckling. ...
The LANSCE target operates at a beam current of 30 microamps. We present here the results of the finite-element calculations for the temperatures and stresses in the present target operated at 100 microamps. The calculations were run using the ABAQUS finite-element code. All finite-element codes require as input both the boundary ...
... (VCCT) available within the ABAQUS (ABAQUS, Inc.) finite element software. ... a prediction based on the extended finite element model (XFEM) approach. ...
... Using ABAQUS with an Introduction to ABAQUS/Explicit/CAE ... a Method of Comparison for Plate Elements in Finite Element Engineering Software ...
The Abaqus commands for three-dimensional meshing .... dimensional contact with Abaqus was done on a simpler model consisting of one face gear tooth and one ...
... current and cancelled), Joint Staff and ... was modeled using the ABAQUS/Explicit, DYNA3D ... Finite element analysis, Cylindrical shell, Water slug. ...
(ABAQUS, Inc.) finite element software. ... bonded composite joints. ... 7) available in the Abaqus finite element package is utilized for comparison purposes. ...
Abaqus cohesive element, COH3D8, and a user-defined cohesive element are ... obtained with the Abaqus cohesive element correlate well with the analytical ...
... of Defense (DoD) Issuances (current and cancelled), Joint Staff and ... Title : Evaluation of a Nonlinear Finite Element Program - ABAQUS. ...
... Results A model of the tracer cup was constructed, and boundary conditions were applied using ABAQUS. ... 2006. 2 ABAQUS, Inc. ...
Of the factors that mainly affect the efficiency of the wing during a special flow regime, the shape of its airfoil cross section is the most significant. Airfoils are generally designed for a specific flight condition and, therefore, are not fully optimized in all flight conditions. It is very desirable to have an airfoil with the ability to change its shape based on the current regime. Shape ...
A model and a computer code were developed for calculating the thermal, chemical, and mechanical behaviors of carbon-phenolic and carbon-carbon composites heated rapidly to high temperatures. The model and the computer code (termed CHAR) were validated by the results of thermochemical and mechanical tests on FM5055 carbon-phenolic cloth. The results ...
The simulation of nuclear reactor fuel performance involves complex thermomechanical processes between fuel pellets, made of fissile material, and the protective cladding barrier that surrounds the pellets. This paper examines asubset of phenomena that are important in the development of a predictive capability for fuel performance calculations, focusing on ...
The near eutectic 60Sn-40Pb alloy is the most commonly used solder for electrical interconnections in electronic packages. This alloy has a number of processing advantages (suitable melting point of 183 C and good wetting behavior). However, under conditions of cyclic strain and temperature (thermomechanical fatigue), the microstructure of this alloy undergoes a heterogeneous ...
Progress is being made in our efforts to develop computational models for predicting material property changes in weapon components due to aging. The first version of a two-dimensional lattice code for modeling thermomechanical fatigue, such as has been observed in solder joints on electronic components removed from the stockpile, has been written and ...
This report discusses probabilistic fracture mechanics (PFM) analysis which is a major element of the comprehensive probabilistic methodology endorsed by the NRC for evaluation of the integrity of Pressurized Water Reactor (PWR) pressure vessels subjected to pressurized-thermal-shock (PTS) transients. It is anticipated that there will be an increasing need for an improved and validated PTS PFM ...
