STRESS INTENSITY FACTORS OF NOZZLE CORNER CRACKS

被引：8
|
作者：
CHAI, GZ
HONG, QC
机构：
[1] Zhejiang Institute of Technology, Hangzhou, Zhejiang
来源：
ENGINEERING FRACTURE MECHANICS | 1991年 / 38卷 / 01期
关键词：
D O I：
10.1016/0013-7944(91)90204-E
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In the present paper a formula for the stress intensity factor (SIF) of a nozzle corner 1/4 circular crack in a P.V. nozzle along the longitudinal section of a cylinder is proposed and verified with the fatigue experimental results of 30-nozzle corner cracks from nine-piece plate-nozzle models and three pressure vessels. The maximum difference between the K(I) calculated with the proposed formula and the experimental results is less than 15%.
引用
收藏
页码：27 / 35
页数：9
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