Modelling fatigue crack propagation of a cracked metallic member reinforced by composite patches

被引：10
|
作者：
Wang, Rong [1 ]
Nussbaumer, A. [2 ]
机构：
[1] Xian Shiyou Univ, Sch Mat Sci & Engn, Xian 710065, Peoples R China
[2] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, CH-1015 Lausanne, Switzerland
来源：
ENGINEERING FRACTURE MECHANICS | 2009年 / 76卷 / 09期
关键词：
Cracked metallic member; Composite patch; Fatigue crack propagation; Fracture model; Fatigue life; 2 ADHESIVE BANDS; ALUMINUM PANELS; GROWTH-BEHAVIOR;
D O I：
10.1016/j.engfracmech.2009.02.004
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The concept of fracture for material elements at front of a crack for fatigue crack propagation was extended to the fatigue crack propagation of a cracked metallic member reinforced with a composite patch in this paper. From static mechanics and linear elastic fracture mechanics, force transfer on a cracked member through a composite patch was analyzed and a formula connecting the stress intensity factor with crack length was obtained. Thereafter, a fracture model for fatigue crack propagation of a repaired cracked metallic member was proposed. A new expression for the fatigue crack propagation rate has thus been derived. The expression was verified objectively by the test data. It is in good agreement with the test results. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1277 / 1287
页数：11
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