Effective moduli of multi-scale composites
Effective moduli of multi-scale composites
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DOI：
10.1016/j.compscitech.2011.12.017
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发表时间：
2012-03-08
影响因子：
9.1
通讯作者：
Wagner, H. Daniel
中科院分区：
文献类型：
--
作者：
Bar-On, Benny;Wagner, H. Daniel
The effective moduli of a multi-scale composite are evaluated by a bottom-up (hierarchical) modeling approach. We focus on a two-scale structure in which the small scale includes a platelet array inside a matrix, and the large scale contains fibers inside a composite matrix. We demonstrate that the principal moduli of the multi-scale composite can be fine-tuned by the platelet arrangement and orientation. As a case study, we consider the phenomenon of fiber micro-buckling within the multi-scale composite. It is found that the compressive micro-buckling strength can be considerably increased for specific platelet orientations. The multi-scale design approach presented here can be used to generate novel families of composite materials with tunable mechanical properties. (C) 2012 Elsevier Ltd. All rights reserved.
