Fatigue initiation behaviour throughout friction stir welded joints in AA2024-T3

被引：22
|
作者：
Lemmen, H. J. K. [1 ]
Alderliesten, R. C. [1 ]
Benedictus, R. [1 ]
机构：
[1] Delft Univ Technol, Fac Aerosp Engn, NL-2600 GB Delft, Netherlands
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2010年 / 32卷 / 12期
关键词：
Friction stir welding; Fatigue initiation; Modified Goodman relation; Residual stress; Numerical analysis;
D O I：
10.1016/j.ijfatigue.2010.06.001
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper presents the results of an experimental and numerical investigation on the fatigue crack initiation behaviour of friction stir welded joints in AA2024-T3. These welds exhibit a complex material behaviour. In this study the influence of the different weld zones on the fatigue crack initiation behaviour was investigated. Therefore, fatigue experiments were conducted on a variety of welded central notched specimen configurations. As a result, the fatigue initiation life as function of the location in and the orientation of the weld was obtained. Numerical analyses were performed to investigate the influence of residual stress and yield strength on the stresses at the notch. (c) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1928 / 1936
页数：9
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