A STUDY OF FATIGUE CRACK-GROWTH IS-1020 STEEL UNDER CONSTANT-AMPLITUDE LOADING

被引:1
|
作者
SINGH, SB
KUMAR, R
机构
[1] Department of Hydraulics 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(92)90014-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Crack propagation experiments were performed on IS-1020 steel for various load ranges and stress ratios. At constant maximum load, the life of the specimen increased as the load ratio increased. The crack growth data were analysed in terms of DELTA-K(eff) as a function of stress ratio R. The data covered R values of 0, 0.1, 0.2, and 0.3, and a good relation was obtained for U = 0.80 - 0.3R + 0.15R2. A crack growth rate equation was also developed.
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页码:177 / 188
页数:12
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