A model to describe stick–slip transition time during ultrasonic consolidation

被引：0
|
作者：
Gregory S. Kelly
Suresh G. Advani
John W. Gillespie
机构：
[1] University of Delaware,Center for Composite Materials
[2] University of Delaware,George W. Laird Professor of Mechanical Engineering
[3] University of Delaware,Donald C. Phillips Professor of Civil and Environmental Engineering, Department of Materials Science and Engineering, Department of Mechanical Engineering
来源：
The International Journal of Advanced Manufacturing Technology | 2015年 / 79卷
关键词：
Ultrasonic consolidation; Finite element analysis; Aluminum; Plastic deformation; Friction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A finite element model of ultrasonic consolidation (UC) is developed to investigate the slip to stick transition time during the UC bonding process. A methodology is established to determine the transition from sliding friction from the initiation of the UC bonding process to the onset of bonding using an energy criterion and geometry changes during bonding of foils with UC. Sliding friction is shown to occur for a large fraction of the weld time; however, the majority of deformation and heat generation occur during the volumetric deformation (stick) phase. The model results are compared with experiments over a range of weld times, and good agreement is found with experimental measurements of UC.
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页码：1931 / 1937
页数：6
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