Numerical analysis of the effect of thermal residual stresses on the performances of bonded composite repairs in aircraft structures

被引：31
作者：
Albedah, A. [1 ]
Bouiadjra, B. Bachir [1 ,2 ]
Aminallah, L. [2 ]
Es-Saheb, M. [1 ]
Benyahia, F. [1 ]
机构：
[1] King Saud Univ, Dept Mech Engn, Coll Engn, Riyadh, Saudi Arabia
[2] Univ Djillali Liabes Sidi Bel Abbes, Dept Mech Engn, LMPM, Sidi Bel Abbes 22000, Algeria
来源：
COMPOSITES PART B-ENGINEERING | 2011年 / 42卷 / 03期
关键词：
Bonded composite repair; Residual stress; Adhesion; Stress transfer; Finite element analysis (FEA); 2 ADHESIVE BANDS; CRACKS; PATCH; PLATE;
D O I：
10.1016/j.compositesb.2010.11.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study the finite element method is used to analyse the effect of the thermal residual stresses resulting from adhesive curing on the performances of the bonded composite repair in aircraft structures. The stress-intensity factor at the crack tip is chosen as fracture criterion in order to estimate the repair performances. The obtained results show that the presence of the thermal residual stresses reduces considerably the repair performances and consequently decreases the fatigue life of cracked structures. The effects of the curing temperature, the adhesive properties and the adhesive thickness on the stress-intensity factor (SIF) variation with thermal stresses are also analysed. (c) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：511 / 516
页数：6
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