Continuum approach to fatigue crack initiation and propagation in welded steel joints

被引：31
|
作者：
Remes, Heikki [1 ]
Varsta, Petri [1 ]
Romanoff, Jani [1 ]
机构：
[1] Aalto Univ, Sch Engn, Dept Appl Mech, FIN-00076 Aalto, Finland
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2012年 / 40卷
关键词：
Fatigue initiation; Fatigue crack growth; Welded joints; Heat-affected zone; Grain size; GROWTH; LIFE;
D O I：
10.1016/j.ijfatigue.2012.01.007
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, a continuum-based discrete crack growth approach is introduced for the fatigue life analysis of welded steel joints. The proposed approach applies cumulative damage models utilising the material hardness and grain size statistics. The approach is validated with fatigue strength tests, and the predicted crack growth rates and fatigue lives have been observed to be in good agreement with the experiments. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：16 / 26
页数：11
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