A hysteretic cohesive-law model of fatigue-crack nucleation

Assessment of low cycle fatigue crack growth under mixed-mode loading conditions by using a cohesive zone model

“…These CCZMs can be simply classified into two types through their different unloading strategies: elastic unloading and plastic unloading. Elastic unloading means no residual separation across a cohesive crack is introduced after a complete unloading [8,10,[21][22][23][25][26][27][28][29]. Plastic unloading postulates that residual separations still exist after complete unloading similar to plastic deformations in metals [24,[30][31][32][33][34][35][36].…”

Simulation and experimental validation of mixed mode delamination in multidirectional CF/PEEK laminates under fatigue loading

“…Finally, the third approach and meanwhile one of 0020-7683/$ -see front matter Ó 2010 Elsevier Ltd. All rights reserved. doi:10.1016/j.ijsolstr.2010.12.012 the most successful techniques used to model cyclic as well as quasi-static delamination in composites relies on the modelling of cohesive zones (Alfano and Crisfield, 2001;Allix and Blanchard, 2006;Barenblatt, 1962;Dugdale, 1960;Harper and Hallett, 2008;Maiti and Geubelle, 2005;Munoz et al, 2006;Naghipour et al, 2009a;Nguyen et al, 2001;Peerlings et al, 2000;Roe and Siegmund, 2003;Serebrinsky and Ortiz, 2005;Turon et al, 2007a;Turon et al, 2007bor Yang et al, 2001. This approach has been also used in this work for the modelling of mixed mode inter-laminar delamination under cyclic and quasi-static loadings.…”

A constrained intrinsic cohesive finite element method with little stiffness reduction for fracture simulation

“…Many cohesive laws have been proposed, e.g., the Xu-Needleman [3], improved Xu-Needleman [16], bilinear [4], trapezoidal [17], irreversible [8,9] and hysteretic cohesive law [18].…”