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Implementing a "UMAT" in comsol (stress dependant modulus)

Posted 19 lug 2011, 15:31 GMT-4 Materials, Structural Mechanics Version 4.2 0 Replies

Bernadette Kenneally
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I was wondering if there was any way to implement the COMSOL equivalent of what ABAQUS calls a UMAT (user defined material subroutine). I am trying to model wave propagation in soil and would like to implement a stress (or strain) dependent young's modulus that is updated for each stress/strain state.

I would like to use an iterative process to converge on E based on calculated stresses (or strains). Has anyone had any luck doing something like this, and if so how do I implement it in COMSOL?
0 Replies Last Post 19 lug 2011, 15:31 GMT-4
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Hello Bernadette Kenneally

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