The verification tests outlined in this section are carried out for all element types listed. The finite element model consists of elements subjected to increasing tensile loads. The first analysis consists of a single *DYNAMIC step. The results from the end of this step of the analysis are transferred to a second analysis, where further tensile loading is applied. The tests are performed for all combinations of the UPDATE and STATE parameters on the *IMPORT option. The results at the end of the second analysis should be identical to the results at the end of the first analysis when UPDATE=NO, STATE=YES. Elements are modeled with a variety of different constitutive models, including isotropic elasticity; anisotropic elasticity; lamina elasticity; orthotropic elasticity; orthotropic elasticity with engineering constants; hyperelasticity with Marlow, Arruda-Boyce, and polynomial potentials; hyperfoams; and equation of state. Hyperelastic models are used in combination with viscoelasticity and Mullins effect considerations. Modeling of inelastic effects includes plasticity and damage with several different initial and evolution criteria.

The verification tests outlined in this section are carried out for all element types listed. The finite element model consists of elements subjected to increasing tensile loads. The first analysis consists of a single *DYNAMIC step. The results from the end of this step of the analysis are transferred to a second analysis, where further tensile loading is applied. The tests are performed for both STATE settings on the *IMPORT option. The results at the end of the second analysis should be identical to the results at the end of the first analysis when STATE=YES. Elements are modeled with a variety of different constitutive models, including isotropic elasticity, anisotropic elasticity, lamina elasticity, orthotropic elasticity, and orthotropic elasticity with engineering constants.

The verification tests outlined in this section are carried out for all element types listed. The finite element model consists of elements subjected to tensile and thermal loads. The first analysis consists of a single *DYNAMIC TEMPERATURE-DISPLACEMENT step. The results from the end of this step of the analysis are transferred to a second analysis, where further tensile loading is applied. The tests are performed using UPDATE=NO, STATE=YES and UPDATE=YES, STATE=YES on the *IMPORT option. The results at the end of the second analysis should be identical to the results at the end of the first analysis when UPDATE=NO, STATE=YES. Elements are modeled with a variety of different constitutive models, including isotropic elasticity, anisotropic elasticity, lamina elasticity, orthotropic elasticity, and orthotropic elasticity with engineering constants. The thermal properties of the material are taken to be isotropic.

The acoustic elements are subjected to a linearly increasing pressure loading. Since acoustic elements have no material state, STATE=YES and STATE=NO are equivalent. Acoustic elements have pressure degrees of freedom only; thus, UPDATE=YES will import the pressure values while UPDATE=NO will set them to zero.

The verification tests in this section consist of analyses involving contact with analytical rigid surfaces, surface contact, and edge contact. The results from the end of the first step of the analyses are transferred to a second analysis. The tests are performed using UPDATE=NO, STATE=YES and UPDATE=YES, STATE=YES on the *IMPORT option.

The material model used for all the tests is isotropic linear elasticity, together with Mises plasticity.

The tests outlined in this section verify the accuracy of the transfer of rebar layers and embedded elements from one Abaqus/Explicit analysis to another Abaqus/Explicit analysis. The tests are performed for all element types listed.

The tests involve elements with rebar layers or embedded elements subjected to loading over two *DYNAMIC steps in the first analysis. The results from the end of the first step are then transferred to another Abaqus/Explicit *DYNAMIC import analysis. In addition to the imported elements, new elements with rebar layers or embedded elements are defined in the import analysis. These new elements are identical to the initial element definitions of the imported elements in the original analysis. During the import analysis, the imported elements and the newly defined elements are subjected to loads such that the final loads are identical to those applied at the end of the second step in the original analysis. The import analysis is performed for the combinations UPDATE=NO, STATE=YES and UPDATE=YES, STATE=YES on the *IMPORT option.