Structural Stress Method to Evaluate Fatigue Properties of Similar and Dissimilar Self-Piercing Riveted Joints

被引：11
|
作者：
Rao, Harish M. [1 ]
Kang, Jidong [1 ]
Huff, Garret [2 ]
Avery, Katherine [2 ]
机构：
[1] CanmetMATERIALS, 183 Longwood Rd South, Hamilton, ON L8P 0A5, Canada
[2] Ford Motor Co, Ford Res & Innovat Ctr, Dearborn, MI 48124 USA
来源：
METALS | 2019年 / 9卷 / 03期
关键词：
structural stress; self-piercing rivet; fatigue strength; aluminum alloys; carbon fiber reinforced plastic; dissimilar joints; SPOT WELDS; ALUMINUM; PREDICTION; PANELS;
D O I：
10.3390/met9030359
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, we discuss the application of a simple Battelle structural stress model to evaluate the fatigue life of a self-piercing riveted (SPR) carbon-fiber-reinforced polymer (CFRP) composite to aluminum AA6111. The analytical model accounts for the forces and moments acting on the rivets to determine the structural stresses which were then plotted against the laboratory-generated fatigue life data. The master S-N curve determined in this study thus accounts for various factors such as the stacking configuration, rivet head height, and fatigue load ratios. The analytical model used in this study was able to collapse a large number of fatigue life data into one master S-N curve irrespective of stack-ups, rivet head height, and load ratios. Thus, the master S-N curve derived from the model can be used to predict the fatigue life of the SPR joints.
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页数：9
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