J Integral Computation For Repaired Cracks With Bonded Composite Patch In Aircraft Structures

被引：0
|
作者：
Benyahia, F. [1 ]
Albedah, A. [1 ]
Bouiadjra, B. Bachir [2 ]
Belhouari, M. [2 ]
机构：
[1] King Saud Univ, Coll Engn, Dept Mech Engn, Riyadh, Saudi Arabia
[2] Univ Djillali Liabes Sidi Bel Abbes, Dept Mech Engn, LMPM, Sidi Bel Abbes, Algeria
来源：
ADVANCES IN FRACTURE AND DAMAGE MECHANICS XII | 2014年 / 577-578卷
关键词：
Composite repair; J integral; Adhesive; Aircraft structures;
D O I：
10.4028/www.scientific.net/KEM.577-578.341
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this study, the three-dimensional and nonlinear finite element method is used to estimate the performances of bonded composite repairs of metallic cracked aircraft structures by analyzing the J integral and at the crack tips of repaired cracks for single and double symmetric patches. Several calculations have been realized to extract the plasticized elements around the crack tip. The obtained results show that composite repair reduces significantly the J integral at the crack tip which can improve the fatigue life of aircraft structures. It was also shown that the double symmetric patch has a considerable beneficial effect on the repair performance compared to the single patch.
引用
收藏
页码：341 / +
页数：2
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