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xfem crack propagation under cyclic loading
Wed, 2013-04-24 11:25 - PEYMAN k
Hi,
Im doing a research about crack propagation in a material under cyclic loading but when i run my model,crack doesent prapagates properly.I was wondering if xfem has the ability of propagating the crack under cyclic loading or not!?How can i solve my problem?
Forums:
XFEM Crack Growth Across Bi-material Interface
I am using XFEM in ABAQUS to simulate crack growth from one material to another. Although the crack passes through the interface, the simulation stops after crack growth of few more elements with this error:
"THE FRACTURE CRITERION f=1.5400 AT ELEMENT 2469, THE DAMAGE INITIATION TOLERANCE HAS BEEN EXCEEDED AND CUTBACK IS REQUIRED."
This element is the one right next to the crack front.
I have tried to increase the damage initiation tolerance > 0.5 and the crack one more element and then same error.
I have tried mesh refinement and the error remains.
Any ideas ?