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

来源：

ENGINEERING FRACTURE MECHANICS | 1996年 / 55卷 / 03期

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

页码：505 / 512

页数：8

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