Chris Quan
Ansys Employee

First of all, you need to make sure that the hardening curve in Engineering Data has sufficient data to cover the entire strain range of your simulation. Your plastic strain plot shows the plastic strain has reached 13%. However, the maximum plastic stain in the hardening curve seems to be only 1.9%, much less than the actual strain range. If this is true, you need to extend the strain range in your hardening curve so the material yield strength can be accurately predicted.

In your simulations, plastic strain is much larger than elastic strain. Usually, plastic strain failure is used as failure model. You can apply Plastic Strain Failure model to your material in Engineering Data. See attached picture below. If you must use Total Starin, you can apply Principal Strain Failure to your material.



Once the simulation has completed, you can click on Solution in Tree Outline and then click on Worksheet on the top tool bar to show a list of the user-defined results. Among them, you will find the directional total strains like STRAIN_XX, elastic strains like EPELX, and plastic strains like EPPLX, or the Princial Strains like P_Strain_1. 

In the following example, the elastic strain (-1.8874E-4) + the plastic strain (-3.0859E-2) = total strain (-3.1047E-2).