Application of mesh sheet energy directors to ultrasonic welding and single lap joint strength of CF/PPS composites

Shin Ichi Takeda, Jonathon D. Tanks, Sunao Sugimoto, Yutaka Iwahori

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ultrasonic welding technology for thermoplastics has developed quickly in recent years. For aircraft structural applications, this joining technique shows promise over standard epoxy adhesives, resistance welding, or mechanical fastening in terms of scalability and efficiency. However, identification of optimal ultrasonic welding parameters remains a difficult task. Energy directors with either flat or custom-made geometries have been the focus of much recent research, but a clear winner has not yet emerged. In this study, single-lap joints (SLJ) of unidirectional CF/PPS laminates were manufactured by ultrasonic welding, using commercially available PPS mesh inserts as energy directors. The shear strength was evaluated, and the failure surfaces were examined to understand the relationship between welding parameters and resultant strength. Results indicate that coarser mesh size, along with longer welding times, tend to result in higher SLJ shear strength.

Original languageEnglish
Title of host publicationECCM 2018 - 18th European Conference on Composite Materials
PublisherApplied Mechanics Laboratory
ISBN (Electronic)9781510896932
Publication statusPublished - 2019
Event18th European Conference on Composite Materials, ECCM 2018 - Athens, Greece
Duration: 24 Jun 201828 Jun 2018

Publication series

NameECCM 2018 - 18th European Conference on Composite Materials

Conference

Conference18th European Conference on Composite Materials, ECCM 2018
CountryGreece
CityAthens
Period24/06/1828/06/18

Keywords

  • CFRTP
  • Single-lap joints
  • Ultrasonic welding

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  • Cite this

    Takeda, S. I., Tanks, J. D., Sugimoto, S., & Iwahori, Y. (2019). Application of mesh sheet energy directors to ultrasonic welding and single lap joint strength of CF/PPS composites. In ECCM 2018 - 18th European Conference on Composite Materials (ECCM 2018 - 18th European Conference on Composite Materials). Applied Mechanics Laboratory.