Hello,
I'm new in this forum and I've a problem that i can't resolve. I need to model nitinol in Abaqus: I've read the documentation (Search for answer ID 1658 UMAT and VUMAT routines for the elastic-plastic simulation of Nitinol 4699 Abaqus/CAE plug-in utility to calibrate Nitinol material behavior) and many topic in Internet but I don't understand if I must use a VUMAT subrutine or it is sufficent the tool of user defined material in Abaqus/CAE. I need something simple like an elastoplatic behaviour with hysteresis given by the different states of austenite and martensite.
please help me
best regard
max
Forums
Read this paper
I would refer you to this article - http://scholar.google.com/scholar?cluster=2711190782564044454&hl=en&as_…
In the constitutive model section, you will find that Ansys has a built-in working super-elastic SMA model (No Shape Memory Effect).