ProductsAbaqus/StandardAbaqus/Explicit Elements tested
Problem descriptionMaterial:Linear elastic, Young's modulus = 1.0 × 106, Poisson's ratio = 0.25. For coupled temperature-displacement elements dummy thermal properties are prescribed to complete the material definition. Loading for Step 1Displacement boundary conditions applied to all exterior nodes: 10−3r, 10−3. Nonuniform body force: To maintain a constant shear stress 400 and preserve equilibrium, an equilibrating body force, BZNU, is defined in user subroutine DLOAD as BZNU −400, where r is the radius of the integration point. In the Abaqus/Explicit simulations this step is followed by an intermediate step in which the model is returned to its unloaded state. Loading for Step 2Displacement boundary conditions applied to all exterior nodes: 10−2r, 10−2z. Loading for Step 3Displacement boundary conditions applied to the deformed geometry of Step 2 at all exterior nodes: 10−3r, 10−3. Nonuniform body force (as described for Step 1): BZNU −400. In the Abaqus/Standard simulations this step is defined as a perturbation step; in the Abaqus/Explicit simulations a velocity boundary condition that gives rise to the perturbation is specified instead. Reference solutionThe analytical results for each step are presented below. Step 1: PERTURBATION
Step 2: NLGEOM
In the Abaqus/Explicit simulations this is the third step. (The second step in the Abaqus/Explicit simulations returns the model to its unloaded state.) Step 3: PERTURBATION
In the Abaqus/Explicit simulations this is the fourth step. The results from the third step in the Abaqus/Explicit simulations must be subtracted from the results of the fourth step to obtain the perturbation about the loaded state. Results and discussionAll elements yield exact solutions. Input filesAbaqus/Standard input files
Abaqus/Explicit input files
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