VUSDFLD

This problem contains basic test cases for one or more Abaqus elements and features.

The following topics are discussed:

ProductsAbaqus/Explicit

Elements tested

  • B31
  • C3D8
  • C3D8R
  • CAX4R
  • CPE4
  • CPE4R
  • CPS4R
  • M3D4
  • M3D4R
  • PIPE31
  • S4
  • S4R
  • S4RS
  • SAX1
  • SC8R
  • T2D2
  • T3D2

Features tested

User subroutine to redefine field variables at a material point.

Problem description

This test verifies that the user-defined material point field variable in user subroutine VUSDFLD is transferred properly to the solution process. The finite element model consists of multiple disconnected elements of the types listed above. Each element is associated with a Mises plasticity model and in each case a damage model is constructed based on a user-defined field. For comparison purposes, a duplicate set of elements with equivalent damage initiation/damage evolution definitions is included to provide a reference solution.

Results and discussion

In each case the results in the testing element match the solution in the reference element, which can be observed from the time-history plots of the output variables.

Input files

damage_vusdfld.inp

Damage analysis.

damage_vusdfld.f

User subroutine VUSDFLD used in damage_vusdfld.inp.