Thermally induced fracture of a smart functionally graded composite structure

被引：126

作者：

Wang, BL ^{[1
]}

Noda, N ^{[1
]}

机构：

[1] Shizuoka Univ, Dept Engn Mech, Hamamatsu, Shizuoka 4328561, Japan

来源：

THEORETICAL AND APPLIED FRACTURE MECHANICS | 2001年 / 35卷 / 02期

基金：

中国国家自然科学基金; 日本学术振兴会;

关键词：

D O I：

10.1016/S0167-8442(00)00052-5

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Discussed is the fracture behavior of a cracked smart actuator on a substrate under thermal load. The actuator is made of piezoelectric material with functionally graded material (FGM) properties. Integral transform method is used to reduce the problem to the solution of a set of singular integral equations and is solved numerically. This paper is completed by including graphical plots of the thermal flow. stress and electric displacement intensity factors around the crack for different crack positions and material gradients. Directions of crack initiation are also predicted by using the energy density criterion. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：93 / 109

页数：17

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