An engineering solution for mesh size effects in the simulation of delamination using cohesive zone models
作者： A. Turon , C.G. Dávila , P.P. Camanho , J. Costa
DOI: 10.1016/J.ENGFRACMECH.2006.08.025
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摘要: A methodology to determine the constitutive parameters for the simulation of progressive delamination is proposed. The procedure accounts for the size of a cohesive finite element and the length of the cohesive zone to ensure the correct dissipation of energy. In addition, a closed-form expression for estimating the minimum penalty stiffness necessary for the constitutive equation of a cohesive finite element is presented. It is shown that the resulting constitutive law allows the use of coarser finite element meshes than is usually admissible …
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