ABAQUS program

Many commercial finite element computer programs (for example ABAQUS, ADINA, ANSYS, DYNA, DYNA3D, LS-DYNA, NASTRAN and NONSAP) arc readily available for nonlinear dynamic analysis. Other computer codes, such as CBARCS, COSMOS/M, STABLE, ANSR 1 have been developed specifically for the design of structures to resist blast toads. All these computer programs possess nonlinear analysis capabilities to varying degrees. 

The commercial finite element program, Abaqus [17], was used to calculate the stress distribution in an edge delamination sample. A fully three-dimensional model of the combinatorial edge delamination specimen was constructed for the finite element analyses (FEA). For clarity, some of the FEA results and schematics are presented as two-dimensional configurations in this paper (e.g.. Fig. 1). The film and substrate were assumed to be linearly elastic. The ratio of the film stiffness to the substrate stiffness was assumed to be 1/100 to reflect the relative rigidity of the substrate. This ratio also represents a typical organic... 

The stresses and displacements at the boundaries of the deformable domain (applied or enforced) dictate the boundary conditions, which effectively determine the particular solution to the PDFs. If the problem is truly three-dimensional (because geometry and/or loads vary in all three directions) then numerical solutions are needed for all but the most elementary example cases. FFA is the de facto choice for such scenarios and commercial codes abound ABAQUS and ANSYS (software programs) are arguably the most common. An example of a simple geometry that is nevertheless a truly three-dimensional problem is a film capping an elliptical hole, that is, an elhptical plate or membrane. 

Using a commercially available finite element analysis program, ABAQUS, models representing SiC particulates in a ZrBa matrix were created. The SiC phase was modeled as a round particle in a two dimension (2D) ZrB matrix. Material properties were assumed to be isotropic for both the ZrB and the SiC after initial modeling efforts indicated only small changes in stress fields as a result of the anisotropic properties of the a-SiC (hexagonal polytype). The material properties used in the models, as well as other key model input variables, are included as Table II. 

ABAQUS A world leader in advanced finite element analysis program. It is used routinely to solve large, complex engineering problems that typically include nonlinear effects by Hibbitt, Karlsson Sorensen, Inc., Pawtucket, RI 02860 www.jJbaqs.com... 

The data link between SCDAP/RELAP5/M0D3, PATRAN, and ABAQUS has been added to the code as a user option. This option was developed to support the NRC s Lower Head Failure Program and was intended primarily to allow the detailed thermal and structural analysis of the lower head. This option can be used to analyze structures throughout the system, however. 

The VCCT is implemented in ABAQUS [4] such that the program internally computes a... 

ABAQUS is the Naval Reactors program standard FEA code it was verified with a suite of problems at the time of installation. Several simple models were created and tested for comparison to hand calculations for qualification. In addition, the class of problems analyzed is similar to the dynamic models used in the Naval Reactors program. 

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