TENSILE-SHEAR TESTING OF RESISTANCE ELEMENT WELDED JOINT OF CARBON FIBER-REINFORCED POLYMER AND DP500 STEEL

Authors

  • Aleksija Đurić University of East Sarajevo, Faculty of Mechanical Engineering, RS, B&H
  • Dragan Milčić Faculty of Mechanical Engineering, University of Niš, Niš, Serbia
  • Biljana Marković University of East Sarajevo, Faculty of Mechanical Engineering, RS, B&H
  • Miodrag Milčić Faculty of Mechanical Engineering, University of Niš, Niš, Serbia

Keywords:

Resistance element welding, dissimilar materials joints, CFRP, DP steel

Abstract

 The aim of the research presented in this paper is to analyze the possibility of joining Carbon Fiber-Reinforced Polymer (CFRP) and DP500 steel using novel joining technology called resistance element welding (REW). These two materials are representatives of the multi-material structure, and in this research 1.0 mm thick CFRP and 1.5 mm thick DP500 steel were used. A S355JR steel rivet was used as the auxiliary element. The specimens were assembled with an overlap distance of 35 mm. The REW joining procedure began by drilling a hole in the CFRP and inserting the 4 mm diameter steel element (S355JR) in the CFRP, after which classical resistance spot welding (RSW) was performed. The tensile-shear tests were done on a Beta 50-7 / 6×14 testing machine at a cross head speed of 2 mm/min. Macrostructural analysis was conducted by using a Keyence VHX-6000 microscope. The results presented in this paper show that resistance element welding can be used for joining CFRP and DP steel.

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Published

2022-03-18

Issue

Vol. 1 No. 1 (2022)

Section

Articles