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Experimental and Numerical Characterization of Spot Welded Hybrid Al/CFRP-Joints on Coupon Level

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  • The financial support of the German Research Foundation (DFG) in the framework of the research unit 524 “Manufacturing, Characterization and Simulation of Welded Lightweight Structures of Metal/Fiber-Reinforced Polymer Composites” at the University of Kaiserslautern is gratefully acknowledged.

Abstract

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This paper presents investigations on induction and ultrasonic spot welded hybrid Al/CFRP-specimens. Selected results of welded coupon experiments are discussed. Based on this results detailed FE models are developed and validated by comparison of simulation and experiment. Validated simulations are used to analyze stress states within the hybrid spot welds and to understand the failure progress.

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