Skip to main content

ABAQUS shear failure

Submitted by dmashack on
I am working on a punch process model in abaqus.  I am using a shear failure criterion with johnson-cook plasticity.  When I run the simulation the elements in the blank are not separating from the rest
of the blank.  I have element deletion turned on but the elements appear just to stretch without 
separating.  Any ideas on what is going wrong?

the fatigue life of material can be improve by induce residual stress. shot peening can improved the fatigue life of aluminium alloy by more than 50%. however the initial induced residual stress will not be stable during the operating like it will relax. this relaxation reduces the improvement %. the goal my question is how to model this relaxation using Abaqus Software. may i know how to introduce cyclic load and hence the application of relaxation. 

Mon, 04/09/2012 - 08:15 Permalink