EXPERIMENTAL-OBSERVATIONS OF FATIGUE CRACK-GROWTH IN IS-1020 STEEL UNDER CONSTANT AMPLITUDE LOADING

被引:3
|
作者
SINGH, SB
KUMAR, R
机构
[1] Department of Hydraulic and Hydraulic Machines, Motilal Nehru Regional Engineering College, Allahabad
[2] Department of Mechanical Engineering, Motilal Nehru Regional Engineering College, Allahabad
关键词
D O I
10.1016/0308-0161(93)90079-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Crack propagation experiments were performed on a 0.2% C 0.9% Mn (IS-1020) steel for various load ranges and stress ratios. At constant load range, the life of the specimen decreased as the load ratio increased. The crack growth data were analysed in terms of DELTAK(eff) as a function of stress ratio R. The data covered R values for 0, 0.15, 0.30, 0.35 and 0.40 and a good relation was obtained for U = 0.50 + 0.45R + 0.15R2. A crack growth rate equation was also developed.
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页码:217 / 227
页数:11
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