Dec 14, 2007 #1 Alpha69fr Mechanical Jul 14, 2007 6 0 0 CA 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 !
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 !
Dec 14, 2007 1 #2 xerf Mechanical Oct 4, 2004 674 0 0 US 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. Upvote 0 Downvote
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.
Dec 14, 2007 Thread starter #3 Alpha69fr Mechanical Jul 14, 2007 6 0 0 CA Thanks for the reply ! another question is : is there any limitation in the size of the PROPS vector ??? Upvote 0 Downvote
Thanks for the reply ! another question is : is there any limitation in the size of the PROPS vector ???
Dec 17, 2007 #4 xerf Mechanical Oct 4, 2004 674 0 0 US I do not know about any limitation. The largest size I saw so far used in a UMAT subroutine is NPROPS=160. Upvote 0 Downvote
I do not know about any limitation. The largest size I saw so far used in a UMAT subroutine is NPROPS=160.
Dec 17, 2007 Thread starter #5 Alpha69fr Mechanical Jul 14, 2007 6 0 0 CA Thanks a lot !!! I have just 39 parameters, so it shouldn't be a problem. Upvote 0 Downvote