true stress strain

[blckwtr]

In order to do plasticity analysis on metals, you need to put in the correct data in abaqus. So far, I have an example from Simuleon website and Dowling (Mechanical behaviour of materials, 4th edition). I find the very high values very strange, can someone explain? See attached file...

I am unsure of the yield point, as I think this should be at 0,02% offset, but that is from the calculated E module, right?

 

[Dave442]

i think you used percentages for your strain values.

if you divide your strain values by 100 things should make more sense.

 

[Dave442]

there's also quite detailed explanation of how to do this in the "Getting Started with Abaqus Guides"

Section 10.2 in both the Interactive and Keyword Editions - Plasticity in Ductile Materials

 

[blckwtr]

Dave442: Thanks, that solved it, of coourse...