Progressive damage and nonlinear analysis of 3D four-directional braided composites under unidirectional tension

被引：258

作者：

Fang Guo-dong ^{[1
]}

Liang Jun ^{[1
]}

Wang Bao-lai ^{[1
]}

机构：

[1] Harbin Inst Technol, Ctr Composite Mat, Harbin 150080, Peoples R China

来源：

COMPOSITE STRUCTURES | 2009年 / 89卷 / 01期

基金：

中国国家自然科学基金;

关键词：

3D braided composites; Damage model; Representative volume cell; Non-linear analysis; MECHANICAL-PROPERTIES; ELEMENT SIMULATION; FAILURE ANALYSIS; MODEL; WOVEN; PREDICTION;

D O I：

10.1016/j.compstruct.2008.07.016

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A representative Volume cell (RVC) is chosen to analyze the progressive damage behavior of 3D four-directional braided composites with large braid angle Subjected to uniaxial tension. An anisotropic damage model is established by Murakami-Ohno damage theory. A new damage evolvement model is proposed, which is controlled by material fracture energy of braided composites constituents and equivalence displacements. According to the different damage modes (yarn transverse tension, compression and shear; yarn longitudinal tension and compression; matrix cracking), the different damage states and progressive damage of the braided composite are obtained. The numerical results show that the main failure modes of the braided composites are transverse tension, shear breakage of yarns and matrix cracking, which are in good agreement with the relevant experimental results in some literatures. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：126 / 133

页数：8

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