Stress State Dependent Cohesive Zone Model for Thin Walled Structures
A new stress-state dependent cohesive zone model for thin walled structures is proposed. The model incorporates the stress-state explicitly within the traction-separation law using basic elasticity-plasticity equations combined with a model parameter. The numerical implementation of the model is able to reproduce ductile fracture observed in a pre-cracked C(T) specimen as well as a notched plate specimen of the same material.
M.H Aliabadi, S. Abela, S. Baragetti, M. Guagliano and Han-Seung Lee
M. Rajendran et al., "Stress State Dependent Cohesive Zone Model for Thin Walled Structures", Key Engineering Materials, Vols. 417-418, pp. 353-356, 2010