Analysis of an interface crack for a functionally graded strip sandwiched between two homogeneous layers of finite thickness

被引：86

作者：

Shbeeb, NI ^{[1
]}

Binienda, WK ^{[1
]}

机构：

[1] Univ Akron, Dept Civil Engn, Akron, OH 44325 USA

来源：

ENGINEERING FRACTURE MECHANICS | 1999年 / 64卷 / 06期

基金：

美国国家航空航天局;

关键词：

functionally graded materials; stress intensity factors; strain energy release rate; mixed-mode; crack;

D O I：

10.1016/S0013-7944(99)00099-5

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The interface crack problem for a composite layer that consists of a homogeneous substrate, coating and a nonhomogeneous functionally graded interphase was formulated for singular integral equations with Cauchy kernels, which were integrated using the Lobatto-Chebyshev collocation technique. Mixed-Mode Stress Intensity Factors (SIFs) and Strain Energy Release Rates were calculated. The SIFs were compared for accuracy with relevant results previously published. The parametric studies were conducted for the various thickness of each layer and for various nonhomogeneity ratios. Particular application to the Zirconia thermal barrier on steel substrate is demonstrated. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：693 / 720

页数：28

共 21 条

[1]

[Anonymous], MECH TODAY

[2]

ASISH G, 1997, FUNCTIONALLY GRADED, V76

[3] The interface crack problem for a nonhomogeneous coating bonded to a homogeneous substrate [J].