Dear All,

I use cohesive behaviour and damage to simulate the interaction between reinforcing bar and concrete, the definition of damage consists of two parts: 1) damage initiation 2) damage evolution that may be defined by either displacement or energy, I want to try to use energy and I want to choose linear softening, can you help me how to calculate fracture energy, I have experimental curve the relation between load and slip, I tried to calculate the area underneath the curve as fracture energy, but analysis doesn't complete "Aborted", I don't know why? From this model I want to show how the shear stresses along the embedment length of bar distribute.

Regards

Najia