Compact solutions for the corner singularity in bonded lap joints

被引：58

作者：

Wang, CH ^{[1
]}

Rose, LRF ^{[1
]}

机构：

[1] Def Sci & Technol Org, Airframes & Engines Div, Aeronaut & Maritime Res Lab, Melbourne, Vic 3001, Australia

来源：

INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2000年 / 20卷 / 02期

关键词：

fracture mechanics; finite element stress analysis; boundary layers; corner singularity; joint strength;

D O I：

10.1016/S0143-7496(99)00032-9

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This paper presents compact solutions of the corner singularity at the adhesive/adherend interface in a bonded lap joint. Two configurations of special importance to evaluating joint strength are considered: corners pertaining, respectively, to a square edge and a spew fillet. The stress intensity factors are determined for the limiting case of rigid substrates by means of a numerical matched asymptotic expansion method. The non-dimensional stress intensity factor depends only on the Poisson's ratio of the adhesive, and this variation is characterised in a convenient analytical form by polynomial expressions. Comparison with finite-element results of a bonded joint obtained using tine mesh near the corner points confirms that the present analytical solutions provide very good representations of the singular stress fields at adhesive/substrate corners. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：145 / 154

页数：10

共 29 条

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[2]

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