Thermal behavior of an elliptic inhomogeneity surrounded by a compliant interphase layer

被引:3
|
作者
Shen, H
Schiavone, P
Potapenko, S
机构
[1] Univ Alberta, Dept Mech Engn, Edmonton, AB T6G 2G8, Canada
[2] Univ Waterloo, Dept Civil Engn, Waterloo, ON N2L 3G1, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
imperfect interface; plane elasticity; thermal stresses; inhomogeneity; finite element method;
D O I
10.1016/j.mechmat.2004.07.002
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper examines the effects on internal thermal stresses of a compliant interphase layer surrounding an elliptic inhomogeneity which is embedded within an infinite matrix subjected to plane deformations. The interphase layer is modeled as a spring layer with vanishing thickness, thus allowing continuity of tractions but discontinuity of displacements across the layer. Theoretical predictions for the thermal stresses are obtained using complex variable methods and subsequently validated by solving the same analytical model using the finite element method. The latter is then used to examine four cases of practical interest, namely, in which the inhomogeneity is made up from either aluminum, copper, gold or silver and surrounded, in each case, by a silicon matrix, The results demonstrate the variation of the thermal stresses with the aspect ratio of the inhomogeneity and the parameters describing the properties of the interphase layer. (c) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:663 / 675
页数:13
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