Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 37, Issue 5, Pages 778-789Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2005.06.007
Keywords
delamination; finite element analysis (FEA); dccohesion element
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A decohesion element, with three different optional constitutive laws, has been implemented in an explicit finite element code. The formulation is fully three dimensional, and can simulate mixed-mode delamination. The first constitutive law is bilinear, the second is a third-order polynomial and the third is a combination of linear and polynomial segments. The bilinear law is found to be less stable than the others under certain numerical conditions. Application examples, including mixed-mode fracture, are presented for all constitutive laws. (c) 2005 Elsevier Ltd. All rights reserved.
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