Prediction of fatigue crack growth and residual life using an exponential model: Part I (constant amplitude loading)

被引：39
|
作者：
Mohanty, J. R. [2 ]
Verma, B. B. [2 ]
Ray, P. K. [1 ]
机构：
[1] Natl Inst Technol, Dept Mech Engn, Rourkela 769008, India
[2] Natl Inst Technol, Dept Met & Mat Engn, Rourkela 769008, India
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2009年 / 31卷 / 03期
关键词：
Crack driving forces; Constant amplitude loading; Exponential model; Fatigue crack growth rate; DRIVING-FORCE PARAMETER;
D O I：
10.1016/j.ijfatigue.2008.07.015
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
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.
引用
收藏
页码：418 / 424
页数：7
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