An elastic-plastic shear lag model for fracture of layered coatings

被引：79

作者：

McGuigan, AP

Briggs, GAD

Burlakov, V

Yanaka, M

Tsukahara, Y

机构：

[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

[2] Univ Tokyo, Ctr Collaborat Res, Meguro Ku, Tokyo 1538904, Japan

[3] Univ Oxford Wolfson Coll, Oxford OX2 6UD, England

来源：

THIN SOLID FILMS | 2003年 / 424卷 / 02期

关键词：

brittle thin film; crack density; elastic-plastic interlayer; ductile substrate;

D O I：

10.1016/S0040-6090(02)01124-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a phenomenological model describing cracking under uniaxial tensile strain of a brittle thin film on a deformable substrate with an elastic-plastic interface layer. The model yields an analytical solution predicting average crack density and average crack opening as a function of applied strain and material parameters. The model has been applied to experimental data for cracks in thin SiOx films on PET substrates. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：219 / 223

页数：5

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