Hi
Now I am confused with a problem related to the Cohesive element in ABAQUS.
The model is simple: simulate the Mode II crack propagate at the interface between two materials.
first I creat two parts. and a layer of cohesive element is used to separate them. Tie constraint is employed between the cohesive element and the surrounded materials. But the results show the cohesive element can not break.
However, If i creat one part(include two materials), and partitiate it with a layer of cohesive element. without employing the tie constraint. then the crack can propagate forewards.
Do you know why?
Many thanks.