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Parameters of UMAT

Parameters of UMAT

Parameters of UMAT

(OP)
Hi all,
I have to use a UMAT subroutine and I'm not really familiar with abaqus, I'm wondering if in the abaqus CAE we can define the parameters of UMAT, what should be these one ?
Thanks all !

RE: Parameters of UMAT

To use UMAT,

you should define
in CAE -> Property ->Material

Depvar = number of state variables , i.e. NSTATV size of STATEV vector passed to UMAT.

User Material -> material properties which are passed to UMAT via PROPS vector.

RE: Parameters of UMAT

(OP)
Thanks for the reply ! another question is : is there any limitation in the size of the PROPS vector ???

RE: Parameters of UMAT

I do not know about any limitation. The largest size I saw so far used in a UMAT subroutine is NPROPS=160.

RE: Parameters of UMAT

(OP)
Thanks a lot !!! I have just 39 parameters, so it shouldn't be  a problem.

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