0
research-article

Performance Prediction for Ultrasonic Spot Welds of Short Carbon-Fiber Reinforced Composites

[+] Author and Article Information
Kaifeng Wang

Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA
wangkaifeng1987@gmail.com

Daniel Shriver

Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA
dshriver@umich.edu

Mihaela Banu

Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA
mbanu@umich.edu

S. Jack Hu

Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA
jackhu@umich.edu

Guoxian Xiao

Manufacturing Systems Research Lab, General Motors R&D Center, Warren, MI, USA
guoxian.xiao@gm.com

Jorge Arinez

Manufacturing Systems Research Lab, General Motors R&D Center, Warren, MI, USA
jorge.arinez@gm.com

Hua-tzu Fan

Manufacturing Systems Research Lab, General Motors R&D Center, Warren, MI, USA
charles.fan@gm.com

1Corresponding author.

ASME doi:10.1115/1.4037320 History: Received December 23, 2016; Revised June 26, 2017

Abstract

Ultrasonic welding is a well-known technique for joining thermoplastics and has recently been introduced to joining carbon-fiber reinforced composites (CFRC). However, suitable models for predicting joint performance have not yet been established. At present, most failure models for bonded composites are built based on uniform adhesive joints, which assume constant joint properties. Nevertheless, the joint properties of ultrasonic spot welds for CFRC are variable, which depend on the input welding parameters. In this paper, the effect of welding energy, which is the most important welding parameter, on the joint properties is investigated first. Then a suitable surface-based lap-shear model is developed to predict the joint performance, wherein the critical fracture parameters in the model are described via the functions of welding energy. After comparing the simulated results with experiments, the model is proven feasible in predicting the joint properties of the ultrasonic spot welds.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In