In the vumat subroutine the increment is applied to a chunk of elements. For some condition calculated by the stress based criteria, how can I ask selected nodes to expand as I want?
Should the strain be manipulated and it will respond as expected or is there another way of doing it?
Daniel Aubram
Hi,
in VUMAT as well as other material subroutines, the strains (not displacements) resp. strain increments are input arguments to the stress update which cannot be modified.
You may try built-in Abaqus features instead, allowing the prescription of initial strain or displacement fields.
Regards
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