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- Title
In-plane progressive matrix cracking analysis of symmetric cross-ply laminates with holes.
- Authors
Sadeghi, G.; Hosseini‐Toudeshky, H.; Mohammadi, B.
- Abstract
ABSTRACT Most of the previously performed damage analyses in composite laminates have been restricted to model the plain laminates without geometry discontinuities. In this study, a micromechanical damage model is combined with the finite element formulation and is implemented in the integration points to perform progressive damage analyses of composite laminates. A micromechanical damage model based on the stress transfer method is used to find the degradation of mechanical properties of composite laminates. Crack density is also used as an only state variable representing the damage in each Gauss point of every layer of the laminate. The strain energy and critical energy release rate criterion is also used to predict the damage initiation and evolution in each layer. A finite element discretization is used in conjunction with the user element definition capability of ABAQUS commercial software. To verify the developed procedure, a single element is analysed, and the obtained results are compared with available results in the literature. Progressive damage analyses are also performed for several symmetric cross-ply laminates with and without geometry discontinuity subjected to matrix cracking damage mechanism under in-plane loading conditions. The obtained mechanical response and variations of matrix crack density versus the applied load are also discussed.
- Subjects
MATRICES (Mathematics); CRACK propagation (Fracture mechanics); LAMINATED materials; POROUS materials; STRAINS &; stresses (Mechanics); FINITE element method
- Publication
Fatigue & Fracture of Engineering Materials & Structures, 2014, Vol 37, Issue 3, p290
- ISSN
8756-758X
- Publication type
Article
- DOI
10.1111/ffe.12113