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Stress intensity factors of nozzle corner cracks

✍ Scribed by Guozhong Chai; Qichao Hong

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
512 KB
Volume
38
Category
Article
ISSN
0013-7944

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✦ Synopsis

In the present paper a formula for the stress intensity factor (SF) of a nozzle comer l/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, calculated with the proposed formula and the experimental results is less than 15%.

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