Experimental observation of tensile behavior of patch repaired composites

被引：52

作者：

Cheng, Pengcheng ^{[1
]}

Gong, Xiao-Jing ^{[2
]}

Aivazzadeh, Shahram ^{[3
]}

Xiao, Xinran ^{[4
]}

机构：

[1] Univ Savoie, Polytech Annecy Chambery, Lab SYMME, Annecy Le Vieux, France

[2] Univ Toulouse 3, IUT Tarbes, Inst Clement Ader, F-65016 Tarbes, France

[3] Univ Bourgogne, ISAT, Lab Drive, Nevers, France

[4] Michigan State Univ, Composite Vehicle Res Ctr, Lansing, MI 48910 USA

来源：

POLYMER TESTING | 2014年 / 34卷

关键词：

Repair of composites; Bonded patch; Damage; Optimization; ADHESIVELY-BONDED REPAIRS; SCARF REPAIRS;

D O I：

10.1016/j.polymertesting.2014.01.007

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This work concerns notched composite plates repaired with external circular patches. Their load carrying capability and failure process under tensile loading were investigated experimentally. In the case of a strong adhesive joint, the stiffness of the patches has to be optimized to release high stress concentration and obtain the best repair performance. It was found that the damage progression of the repairs depends not only on the patch stiffness but also on the stacking sequence. With visual inspection and acoustic emission, three modes of damage and failure process for patch repaired specimens were identified. Theses damage models are essential for the development of a numerical design tool for the optimization of external patch repairs. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：146 / 154

页数：9

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