Plastic failure criteria
Plastic failure criteria
(OP)
I am new to running LS-DYNA, and I do the model building in Ansys Workbench. I'm confuesd on how to set the failure criteria on say a metal for which I defined a bilinear curve.
I have a model that according to product specification can yield during a drop of the product, but not separate (break apart).
If material failure occurs at 6% elongation, is my effective plastic strain .06, and is this the failure criteria I input into Ansys as the effective plastic strain limit?
Thanks in advance for your help.
I have a model that according to product specification can yield during a drop of the product, but not separate (break apart).
If material failure occurs at 6% elongation, is my effective plastic strain .06, and is this the failure criteria I input into Ansys as the effective plastic strain limit?
Thanks in advance for your help.





RE: Plastic failure criteria
I would propose you to go by MAT_ADD_EROSION (from 9.71 R5 on well documented). As this requires a big amount of testing, maybe you keep it simple for the beginning.
RE: Plastic failure criteria
RE: Plastic failure criteria
Bill
RE: Plastic failure criteria