期刊
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
卷 40, 期 8, 页码 1907-1921出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0020-7683(03)00024-6
关键词
fiber-reinforced composites; micromechanical modeling; unified periodical boundary conditions; angle-ply laminate; multiaxial loading
类别
An explicit unified form of boundary conditions for a periodic representative volume element (RVE) is presented which satisfies the periodicity conditions, and is suitable for any combination of multiaxial loads. Starting from a simple 2-D example, we demonstrate that the homogeneous boundary conditions are not only over-constrained but they may also violate the boundary traction periodicity conditions. Subsequently, the proposed method is applied to: (a) the simultaneous prediction of nine elastic constants of a unidirectional laminate by applying multiaxial loads to a cubic unit cell model; (b) the prediction of in-plane elastic moduli for [+/-theta](n) angle-ply laminates. To facilitate the analysis, a meso/micro rhombohedral RVE model has been developed for the [+/-theta](n) angle-ply laminates. The results obtained are in good agreement with the available theoretical and experimental results. (C) 2003 Elsevier Science Ltd. All rights reserved.
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