期刊
INTERNATIONAL JOURNAL OF FATIGUE
卷 31, 期 3, 页码 418-424出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijfatigue.2008.07.015
关键词
Crack driving forces; Constant amplitude loading; Exponential model; Fatigue crack growth rate
In the present investigation an attempt has been made to introduce a life prediction methodology by adopting an 'Exponential Model' that can be used without integration of fatigue Crack growth Fate curve. The predicted results are compared with experimental crack growth data obtained for 7020-T7 and 2024-T3 aluminum alloy specimens under constant amplitude loading. It is observed that the results obtained from this model are in good agreement with experimental data and cover both stage-II and stage-III of fatigue crack growth curve. (C) 2008 Elsevier Ltd. All rights reserved.
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