Three-dimensional finite-element analyses of corner cracks at stress concentrations

被引:13
|
作者
Tan, PW [1 ]
Newman, JC [1 ]
Bigelow, CA [1 ]
机构
[1] NASA,LANGLEY RES CTR,HAMPTON,VA 23665
关键词
D O I
10.1016/0013-7944(94)00231-2
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Stress-intensity factors for corner cracks at a semicircular edge notch in a plate subjected to tensile load were obtained by using three-dimensional finite-element analyses. Stress-intensity factor solutions were obtained for a wide range of crack shapes, crack sizes and notch-radius-to-plate-thickness ratios. The range of crack-depth-to-plate-thickness (a/t) ratios considered was 0.2-0.8 and the crack-depth-to-crack-length (a/c) ratios were 0.4 and 1. Two notch-radii-to-plate-thickness (r/t) ratios were studied: 1.5 and 3. The stress-intensity factor solutions are compared with equations that were developed from these results and others from the literature. Copyright (C) 1996 Published by Elsevier Science Ltd.
引用
收藏
页码:505 / 512
页数:8
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