UMAT for perfectly plastic using Von mises criterion ?

[Lemine]

Hello,

Can someone help me with an example of UMAT code for perfectly plastic using Von mises criterion and I would be so thankful?

Best regards

 

[ehsan11]

Hello dear Lemine,
Basically, you don't need to write a UMAT-Fortran code for the elastic-perfectly plastic material model, because you can define this material behaviour only by entering yield stress in the plastic defining section.

to learn more about UMAT check the link below:

https://imechanica.org/files/Writing a UMAT.pdf

BR,
Ehsan