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
收藏
页码：1397 / 1406
页数：10
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