UELMAT | ||
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ProductsAbaqus/Standard
Structural user element
Elements tested
User element.
Features tested
Accessing various Abaqus materials from a user element material point.
Problem description
The finite element model for each test case consists of a single 4-node user element subjected to uniaxial deformation. The element corresponds to Abaqus element CPE4. Different Abaqus materials are accessed from user subroutine UELMAT in each test.
Results and discussion
The results agree with the results obtained using an identical model with Abaqus element CPE4 instead of the user element.
Input files
- uelmat_linela_2d.inp
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Linearly elastic material.
- uelmat_cappla_2d.inp
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Modified Drucker-Prager/Cap plasticity model.
- uelmat_creep_2d.inp
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Material with creep behavior.
- uelmat_druckerprager_2d.inp
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Drucker-Prager plasticity model.
- uelmat_crushfoam_2d.inp
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Crushable foam plasticity model.
- uelmat_hyperelas_neohook_2d.inp
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Neo-Hookean hyperelastic model.
- uelmat_hyperfoam_2d.inp
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Hyperelastic foam.
- uelmat_nkh_2d.inp
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Nonlinear kinematic hardening model.
- uelmat_pormetalpla_2d.inp
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Porous metal plasticity model.
- uelmatmech.f
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User subroutine UELMAT used with all the input files.
Heat transfer user element
Elements tested
User element.
Features tested
User subroutine to define the element operator matrix and the right-hand-side vector.
Problem description
The finite element model for each test case consists of a single 4-node user element. The element corresponds to the Abaqus element DC2D4. The boundary conditions consist of applying heat fluxes to two of the element nodes and applying constant temperatures to the remaining nodes. Steady-state and transient analyses are tested.
Results and discussion
The results agree with the results obtained using an identical model with the Abaqus element DC2D4 instead of the user element.
Input files
- uelmat_ht_2d_ss.inp
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Steady-state heat transient analysis.
- uelmat_ht_2d_trans.inp
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Transient heat transient analysis.
- uelmatht.f
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User subroutine UELMAT used with uelmat_ht_2d_ss.inp and uelmat_ht_2d_trans.inp.