Two Questions on PEEQ

[ParabolicTet]

1. What is the exact relation between PEEQ and True strain of the material that we define in *Plastic card.

2. When I change the mesh in the contact region the PEEQ value shoots from 8% to 22%. Why there is so much difference? I have an edge contacting an edge, so perhaps this is a singularity in the model?

http://web.peoriadesignweb.com/calculator

Online Engineering Spreadsheet Caclulators

 

[xerf]

PEEQ is the equivalent (accumulated) plastic strain.

 

[Cansand]

If you have two materials (different properties) connected by interface displacement elements then you would have this strain-jump but the displacements and the stresses should be the same.. should not they..? please check and let us know..