UMAT

Dear All redears

Thanks for helping me about the defenition of solution dipendent satet variables.

I have another question and is that what can I do, if I want to define temperature dependent material propertiies at UMAT?

is it true to define temprature as a propertiy at the start and end od incerement and compute the propertiy at both cases?? I mean at end and start of it??

To clear the propblem for example i have this type of material peroperty:

E=E(T), NU=NU(T)

for example E and Nu are function of temprature.

is it true to define:

T=temp,

and then write:

E=E(temp) & ... finaly at the load module I apply tempratye at the surface?

thankx alot

sincerely yours

Mohammad