A 3D Meso-Scale Analysis of Angle-Ply Laminates
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES(2013)
摘要
A 3D two-cell representation of laminates with periodic fiber arrays is established and the corresponding periodic boundary conditions are presented. The matrix is described by a nonlinear viscoelastic material model and the fiber by an elastic one. Matrix cracking is modeled by a smeared crack method. The modeling of material nonlinearity, crack initiation, and growth, with appropriate periodic boundary conditions, are incorporated into a finite element model (FEM). Numerical results for five different angle-ply laminates under tensile loading are presented. The results are found to be in fair agreement with the available test data.
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关键词
composites,damage,meso-mechanics,periodic boundary conditions,viscoelasticity,smeared crack method,finite element method
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