The prediction on mechanical properties of 4-step braided composites via two-scale method

被引：127
|
作者：
Yu, X. G. [1 ]
Cui, J. Z. [1 ]
机构：
[1] Chinese Acad Sci, Inst Computat Math & Sci Engn Comp, Acad Math & Syst Sci, Beijing 100080, Peoples R China
来源：
COMPOSITES SCIENCE AND TECHNOLOGY | 2007年 / 67卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
4-step braided composites; two-scale method; stiffness parameters; strength parameters; braiding angle; fiber volume fraction;
D O I：
10.1016/j.compscitech.2006.08.028
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
The two-scale method (TSM) is successfully applied to the prediction for the mechanics parameters of 4-step three dimensional braided composites, including stiffness parameters and strength parameters. The two independent micro-structure parameters, the braiding angle and the fiber volume fraction, are investigated in this paper. Both of them are implicitly included in the fabric of the unit cell of 4-step braided composites with 1 x 1 pattern. They directly influence the strength of 4-step braided composites, including tensile strength, bending strength and torsion strength. And then, the curves of the strength along with the braiding angle and the fiber volume fraction are illustrated. By the comparisons with experimental data, the two-scale method is validated to predict the mechanics parameters of 4-step braided composite materials. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：471 / 480
页数：10
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