Non-linear quasi-static analysis

MartinaC

Hi everyone,

I am modeling a tensile test with Optistruct by imposing displacements. After the analysis, the stress strain curve does not stop at the ultimate strength, but the stresses of the finite elements go on increasing. Is there a way to ensure the stresses do not exceed the ultimate strength?

 

Bests

Martina

Simon Križnik

Hi Martina,

 

try the MATF material card, but element deletion is currently not supported:

https://community.altair.com/community?id=community_question&sys_id=c05684b61b2bd0908017dc61ec4bcb3b

 

MartinaC

Thank you Ivan!

 

I solved my problem setting the plasticity curve of TABLES1 from strain 0 to 1. So the elongation goes on, but stresses stay on ultimate strength.