Numerical analysis of the beneficial effect of the double symmetric patch repair compared to single one in aircraft structures

被引：18

作者：

Bouiadjra, B. Bachir ^{[1
]}

Fekinni, H. ^{[1
]}

Serier, B. ^{[1
]}

Benguediab, M. ^{[1
]}

机构：

[1] Univ Djillali Liabes Sidi Bel Abbes, Dept Mech Engn, Sidi Bel Abbes 22000, Algeria

来源：

COMPUTATIONAL MATERIALS SCIENCE | 2007年 / 38卷 / 04期

关键词：

single patch; double patch; composite patch; SIF; adhesive; thickness; shear modulus; reduction ratio;

D O I：

10.1016/j.commatsci.2006.05.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper concerns a numerical study by the finite element method of the cracked structure repaired by single and double bonded composite patches. The stress intensity factor is used as fracture criteria. The obtained results showed the advantage of the double patch compared to single on the reduction of the stress intensity factor at the crack tip. The effects of the properties of the plate and the patch and the adhesive on the beneficial effect of the double patch are highlighted. The adhesive properties must be optimised in order to increase the advantage of the double patch and to avoid the adhesive failure. The patch properties have a significant effect on the beneficial effects of the double symmetric patch. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：824 / 829

页数：6

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