Self-piercing riveting of similar and dissimilar metal sheets of aluminum alloy and copper alloy

被引：73
作者：
He, Xiaocong [1 ]
Zhao, Lun [1 ]
Deng, Chengjiang [1 ]
Xing, Baoying [1 ]
Gu, Fengshou [2 ]
Ball, Andrew [2 ]
机构：
[1] Kunming Univ Sci & Technol, Innovat Mfg Res Ctr, Kunming 650093, Peoples R China
[2] Univ Huddersfield, Ctr Efficiency & Performance Engn, Huddersfield HD1 3DH, W Yorkshire, England
来源：
MATERIALS & DESIGN | 2015年 / 65卷
基金：
中国国家自然科学基金;
关键词：
Self-piercing riveting; Dissimilar alloy combination; Tensile-shear strength; Fatigue strength; Failure model; HYBRID JOINTS; BONDED JOINTS; STRENGTH; FATIGUE; ART;
D O I：
10.1016/j.matdes.2014.10.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper deals with the mechanical properties of self-piercing riveted joints in similar and dissimilar metal sheets of Al5052 aluminum alloy and H62 copper alloy. Force-displacement curves and S-N curves were obtained to characterize the properties of joints. The normal hypothesis tests were performed to examine the rationality of the test data. The strength, stiffness, impact resistance, failure modes and failure mechanism of joints were also studied. Results showed that the fatigue strength of the joints is influenced by the properties of the sheet materials being joined. The existence of fretting might accelerate the initiation and propagation of the cracks or change the direction of fatigue cracking. Both static strength and fatigue strength of the joints increase with the enhancement of the joint stiffness. The failure model and failure mechanism are affected by the stiffness of the joints. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：923 / 933
页数：11
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