Effects of two damage mechanisms on effective elastic properties of particulate composites

被引：12

作者：

Shen, W

Tang, CY ^{[1
]}

Tsui, CP

Peng, LH

机构：

[1] Hong Kong Polytech Univ, Dept Ind & Syst Engn, Kowloon, Hong Kong, Peoples R China

[2] Huazhong Univ Sci & Technol, Dept Mech, Wuhan 430074, Peoples R China

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2002年 / 62卷 / 10-11期

基金：

中国国家自然科学基金;

关键词：

particle-reinforced composites; debonding; modelling; damage mechanics; elastic properties;

D O I：

10.1016/S0266-3538(02)00085-4

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

This study focuses on development of a method for predicting effective elastic properties of damaged particulate polymer composites. Two damage parameters were introduced and defined by volume fraction of both the void-damage and the debonding-damage. The former parameter was determined by 3-dimensional strain measurement of damaged composite samples, while the latter were estimated from a typical experimental data of the repeatedly load-unload tensile tests. Based on M-T micro-mechanics theory, the equations for estimation of the effective elastic properties of the damaged particulate composites in response to the longitudinal true uni-axial strain were formulated The effects of two damage mechanisms and glass-bead contents on the effective elastic properties of glass bead filled polyphenylene oxide (GB/PPO) composites were investigated by this approach. The predicted results for the effective elastic modulus were close to the experimental data. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1397 / 1406

页数：10

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