Tensile Failure Options

The tensile failure options enable you to control element deletion for plastic material behaviors.

Input Data Description
Use temperature-dependent data Specify material parameters that depend on temperature. A Temperature field appears in the data table.
Hydrostatic Cutoff Stress The hydrostatic cutoff stress in terms of pressure.
Remove failed elements Select this option to remove elements when the failure criterion is met.
For failed elements options If Remove failed elements is clear, the failure criteria are determined using the pressure stress and deviatoric stress components that you select. There are four failure combinations, described in the image below:


  1. Ductile shear and ductile pressure (point 1 in the image): models the case in which the deviatoric stress components are unaffected and the pressure stress is limited by the hydrostatic cutoff stress, p=max(σcutoff,p).
  2. Brittle shear and ductile pressure (point 2 in the image): models the case in which the deviatoric stress components are set to zero and remain zero for the rest of the calculation, and the pressure stress is limited by the hydrostatic cutoff stress, p=max(σcutoff,p).
  3. Brittle shear and brittle pressure (point 3 in the image): models the case in which the deviatoric stress components are set to zero and remain zero for the rest of the calculation, and the pressure stress is required to be compressive, p=max(0,p).
  4. Ductile shear and brittle pressure (point 4 in the image): models the case in which the deviatoric stress components are unaffected and the pressure stress is limited by the hydrostatic cutoff stress, p=max(0,p).