Patran/Marc Isotropic ,Plastic deformation
Patran/Marc Isotropic ,Plastic deformation
(OP)
Hi my project is to predict accurately the stress distribution in a rod in tension (non-linear, plastic behaviour).
I am user Patran and Marc as the solver. I am having a hard time finding a converging solution.
I have played with a lot of load increment parameters and iteration parameters. If i change one parameter minutely ( e.g time step) i get a completely different solution.
I have even tried refining the mesh and imposing severe criteria on the parameters and the result is always different from one test to another.
If anyone has any tips to guide me in the right direction i would really appreciate it. Thanks





RE: Patran/Marc Isotropic ,Plastic deformation
RE: Patran/Marc Isotropic ,Plastic deformation
Otherwise you have to explain what kind of FEM appraoch you're taking to give us the tools to see what your doing "wrong".