Stress State Dependent Cohesive Zone Model for Thin Walled Structures


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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.



Key Engineering Materials (Volumes 417-418)

Edited by:

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

Online since:

October 2009




[1] T. Pardoen T, F. Hachez, B. Machioni, P.H. Plyth and A.G. Atkins. Mode I fracture of sheet metal. J Mech Phys Solids 52 (2004) 423-52.

[2] T. Siegmund and W. Brocks. A numerical study on the correlation between the work of separation and the dissipation rate in ductile fracture. Engng Fract Mech 67 (2000); 139-54.


[3] M. Anvari M, I. Scheider and C. Thaulow. Simulation of dynamic ductile growth using strain-rate and triaxiality dependent cohesive elements. Engng Fract Mech 73 (2006) 221028.


[4] A. Banerjee and R. Manivasagam. Triaxiality dependent cohesive zone model. to appear in Engng Fract Mech (2009).

[5] I. Scheider and W. Brocks: Effect of cohesive law and triaxiality dependence of cohesive parameters in ductile tearing. In: Fracture of Nano and Engineering Materials and Structures, edited by E.E. Gdoutos, Springer; Dordrecht, The Netherlands (2006).


[6] I. Scheider, M. Sch¨odel, W. Brocks and W. Sch¨onfeld. Crack propagation analyses with CTOA and cohesive model: Comparison and experimental validation. Engng Fract Mech 73 (2006) 252-63.