Journal
MECHANICS OF MATERIALS
Volume 39, Issue 10, Pages 897-908Publisher
ELSEVIER
DOI: 10.1016/j.mechmat.2007.03.005
Keywords
fracture mechanics; continuum damage mechanics; composite materials
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A continuum damage model for the prediction of the onset and evolution of intralaminar failure mechanisms and the collapse of structures manufactured in fiber-reinforced plastic laminates is proposed. The failure mechanisms occurring in the longitudinal and transverse directions of a ply are represented by a set of scalar damage variables. Crack closure effects under load reversal are taken into account by using damage variables that are established as a function of the sign of the components of the stress tensor. Damage activation functions based on the LaRCO4 failure criteria are used to predict the different failure mechanisms occurring at the ply level. (C) 2007 Elsevier Ltd. All rights reserved.
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