On micromechanics approximation for the effective thermoelastic moduli of multi-phase composite materials

被引：56
|
作者：
Li, JY [1 ]
机构：
[1] Univ Calif San Diego, Ctr Excellence Adv Mat, La Jolla, CA 92093 USA
来源：
MECHANICS OF MATERIALS | 1999年 / 31卷 / 02期
关键词：
micromechanics; composite; effective moduli; diagonal symmetry;
D O I：
10.1016/S0167-6636(98)00071-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
It has been shown that for multi-phase composite materials, the Mori-Tanaka and self-consistent approaches may give non-symmetric effective moduli, may violate some exact connections between the effective moduli, may violate the Hashin-Shtrikman variational bounds, and may exhibit incorrect behavior at the unitary (100%) reinforcement concentration limit. An effective-medium-field micromechanics approximation using normalized concentration factors is proposed and is shown to overcome these difficulties. Such a normalization is necessary to satisfy the consistency relationship. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：149 / 159
页数：11
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