Entering stress-strain diagram for compression and tension
Entering stress-strain diagram for compression and tension
(OP)
Hi guys,
I would like to enter the entire stress-strain diagram of a plastic. This diagram is different in uniaxial compression and tension. I have the entire stress-strain diagram available for both, and I'm not worried about what happens in the other directions when the material yields. I do not want to create two separate materials in my simulation, as this workaround would not work for me (because I can't predict exactly where compression and tension will occur).
How should I implement this in Abaqus?
Kind regards,
Comp
I would like to enter the entire stress-strain diagram of a plastic. This diagram is different in uniaxial compression and tension. I have the entire stress-strain diagram available for both, and I'm not worried about what happens in the other directions when the material yields. I do not want to create two separate materials in my simulation, as this workaround would not work for me (because I can't predict exactly where compression and tension will occur).
How should I implement this in Abaqus?
Kind regards,
Comp





RE: Entering stress-strain diagram for compression and tension
RE: Entering stress-strain diagram for compression and tension
RE: Entering stress-strain diagram for compression and tension
The disadvantage for my problem is that cast-iron plasticity only works for isotropic materials. My material is in principle anisotropic. Any ideas for anisotropic materials?
RE: Entering stress-strain diagram for compression and tension
RE: Entering stress-strain diagram for compression and tension
Agreed, it's mainly for metal plasticity but perhaps worth a try.
You could quickly use a single element model to attempt to fit its behaviour to your test results, particularly if you have reverse loading results.
Just a thought
MRG