Help in Updating the variable in a UMAT

[vinnuram]

hey all,
As i gave in last email about the UMAT.Now i wanted to know about how to update a state variable which is not in the abaqus library.Does DESPAR is related in any way to this.
Could anybody tell how should i deal with this and also if anbody has a sample subroutine in which the variable is update which is not in the abaqus library .
Thank you
Vinnu Arige

[Jorgen]

Hi Vinnu,

In ABAQUS, the approach is to add the *Depvar command in the input file to specify how many state variables the user material subroutine is taking. Then you can simply read, use, and update the state variables any way you want by using the vector: statev.

Best of luck,
Jorgen