Stress intensity factors for surface cracks at countersunk holes

被引：12
|
作者：
Park, Chul Young
Grandt, Alten F., Jr.
Suh, Jung Jun
机构：
[1] Eclipse Aviat Corp, Albuquerque, NM 87106 USA
[2] Purdue Univ, Sch Aeronaut & Astronaut, W Lafayette, IN 47907 USA
来源：
ENGINEERING FRACTURE MECHANICS | 2006年 / 73卷 / 13期
关键词：
stress intensity factor; countersunk hole; crack closure; PMMA;
D O I：
10.1016/j.engfracmech.2006.02.017
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Fatigue crack growth from countersunk fastener holes loaded in remote tensile loading was studied using the transparent polymer PMMA. A single edge corner crack at the bottom of the plate and a single internal surface crack at the sharp intersection between the bore and the countersink were induced in the PMMA specimens by pre-cracking. The specimens were then fatigue tested under constant amplitude remote tensile loading and the 'back-calculation' method was used to determine stress intensity factors at several crack front locations. When variations in fatigue crack closure were taken into account, the experimental stress intensity factors agreed well with the computational results at selected crack fronts. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1878 / 1898
页数：21
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