iMechanica - Iterations in VUMAT - Comments

Suggestion for interaction method

cece83 — Sun, 07 Mar 2010 15:59:33 -0500

Hi hua_2001,

thanks for answering.

Could you suggest me a good paper or book about interaction method? Have you ever worked with shape memory alloy.I find difficult to create the dipendence from martensitic volume fraction.

Any suggestion will be appreciate.

you can do it by interaction

hua_2001 — Tue, 05 Jan 2010 12:20:20 -0500

you can do it by interaction method. you also can take advantage of the mini incremental time step to solve the related variable in vumat directly.

Iterations in VUMAT

cece83 — Thu, 03 Dec 2009 12:23:46 -0500

Dear all,

I' m trying to make a model in VUMAT for shape memory alloy based on Lagoudas 's thermomechanical constitutive model. It seems that It's necessary an iteration to evaluate the thermoelastic prediction.

My questions are : is it possible to use an iterative loop in the VUMAT or it's better to avoid it??Could someone suggest me a different way so that I can avoid the iterative loop?

Many thanks,

Cece