User login

Navigation

You are here

perfectly plastic material

Stresses go beyond yield limit in perfecly-plastic model...

Hi all,

I have a problem with perfect-plasticity material model in Abaqus. I this simple 2D analysis, I am modeling a beam fixed at both ends and applying temperature loading on it that will cause yielding. The material model is perfectly plastic with,

*PLASTIC

4.85 E8, 0.0

The problem is, stresses go beyond yield limit (4.85 E8) which should not be the case for the perfectly-plastic material model. I would appreciate any comment/help/suggestion.

Regards,

Soner

 

David J Unger's picture

J-Integral Elliptical Hole (Plane Stress) Perfectly Plastic Material

Choose a channel featured in the header of iMechanica: 

The fracture mechanics community may be interested in a new evaluation of a J-Integral for a fundamental geometry:  an elliptical hole in a perfectly plastic material under the Tresca yield condition for plane stress loading conditions. The analysis is exact and involves only elementary functions.  This makes the problem suitable as a classroom example or as a homework problem for a graduate level course in fracture mechanics.  See J. Elasticity (2008) 92:217-226. http://www.springerlink.com/content/102932/

Subscribe to RSS - perfectly plastic material

More comments

Syndicate

Subscribe to Syndicate