Journal
COMPOSITES PART B-ENGINEERING
Volume 94, Issue -, Pages 197-208Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2016.03.011
Keywords
Friction Spot Joining; Polymer-matrix composites (PMCs); Mechanical properties; Microstructure; Joints/joining
Funding
- Helmholtz Association, Germany [VH-NG-626]
- FAPESP - Sao Paulo Research Foundation, Brazil [2014/09271-0]
- CNPq - National Council for Scientific and Technological Development, Brazil [304169/2014-5]
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Friction Spot Joining is an innovative friction-based joining technique for metal polymer hybrid structures. In this work, aluminum alloy 2024-T3 and CF-PPS friction-spot joints were produced with additional PPS film interlayer. The joints were investigated in terms of the microstructure, mechanical performance under quasi-static loading and failure mechanisms. Macro- and micro-mechanical interlocking as well as adhesion forces were identified to dictate bonding mechanisms in the FSp joint with film interlayer. The ultimate lap shear force of the joints (2700 +/- 115 N up to 3070 +/- 165 N) were 20% -55% higher than the corresponding joints without interlayer, due to the larger bonding area, better load distribution and improved micro-mechanical interlocking. The failure analysis of the joints revealed a mixture of adhesive-cohesive failure, whereas cohesive failure was dominant. (C) 2016 Elsevier Ltd. All rights reserved.
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