Tests arc being conducted on a wide range af composite materials in order to develop data that will be useful in predicting failure behavior in structums. Initial studiis arc b&g pcrformcd on a graphite/epoxy cross-ply laminate in which tbc fiber orientation is changed in a regular fashion. The test
Multiscale finite element modeling of failure process of composite laminates
โ Scribed by Y.X. Zhang; H.S. Zhang
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 401 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0263-8223
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โฆ Synopsis
A multiscale nonlinear finite element modeling technique is developed in this paper to predict the progressive failure process for composite laminates. A micromechanical elastic-plastic bridging constitutive model, which considers the nonlinear material properties of the constituent fiber and matrix materials and their interaction and the damage and failure in fibrous composites at the fiber and matrix level, is proposed to represent the material behavior of fiber-reinforced composite laminates. The micromechanics constitutive model is employed in the macroscale finite element analysis of structural behavior especially progressive failure process of the fiber-reinforced composites based on a 4-node 24-DOF shear-locking free rectangular composite plate element.
๐ SIMILAR VOLUMES
Finite element analysis has been used to model a single unsized carbon fibre embedded in an epoxy matrix subjected to tensile loading. The predicted fibre strain distribution is compared with experimental data, obtained using the technique of laser Raman spectroscopy, for a number of incremental app