Journal
COMPUTERS & STRUCTURES
Volume 81, Issue 20, Pages 2021-2027Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0045-7949(03)00228-1
Keywords
three-dimensionally braided composites; multivariable finite element method; homogenization theory; incompatible element; hybrid element; effective mechanical properties
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A new method for micromechanical properties of three-dimensionally braided composite materials via homogenization theory and incompatible multivariable FEM is proposed in this paper. An incompatible displacement element and a hybrid stress element are developed to model the effective mechanical properties of three-dimensional textile composites. Some illustrative applications are presented for a typical class of four-step braided composites. Results of the hybrid stress element approach compare more favorably with the experimental data than other numerical methods widely used. (C) 2003 Elsevier Ltd. All rights reserved.
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