A criterion for modelling initiation and propagation of matrix cracking and delamination in cross-ply laminates
Source abstract
Abstract
A variational approach is used to model the behaviour of composite cross-ply laminates damaged by transverse, longitudinal cracking and delamination. An energetic criterion is proposed. It is based on the strain energy release rate associated with each of the three damage modes. The first part of this paper is concerned with the modelling of the transverse and longitudinal cracking. In the second part, a model for studying delamination damage is presented. The numerical results show that these models provide a consistent level of accuracy for a variety of thin laminate material systems and configurations, with various combinations of delaminations and matrix cracks. In this paper several numerical simulations meant to describe initiation for each damage mode are proposed. The estimation of damage modes contributions is achieved for two thin laminates in order to predict the evolution of damage mode transition.
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Research context
OpenAlex topics: Mechanical Behavior of Composites · Composite Structure Analysis and Optimization · Fatigue and fracture mechanics
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References (50)
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