Assessment of Different Joining Techniques for Dissimilar Materials

Paper #:
  • 2014-01-0790

Published:
  • 2014-04-01
Citation:
Mao, J. and Nassar, S., "Assessment of Different Joining Techniques for Dissimilar Materials," SAE Technical Paper 2014-01-0790, 2014, https://doi.org/10.4271/2014-01-0790.
Affiliated:
Pages:
7
Abstract:
In this paper, experimental study and FEA simulation are performed to investigate the effect of three different methods for joining dissimilar metal coupons in terms of their strength and load transferring capacity. The joining techniques considered include adhesive bonding, bolting and hybrid bolting-and-bonding. Elastic-plastic material model with damage consideration is used for each of the joint components. Traction-separation rule and failure criterion is defined for adhesive. Load transfer capacity and the failure mode are assessed for each type of joining. Joint strength is examined in terms of the effects of adhesive property, bolt preload level, and friction coefficient. Results show that load transferred and failure mechanism vary significantly between samples with different joint methods; preload evolution in bolt changes with friction coefficient; hybrid joint generally has advantage over the other two methods, namely, bolting-only and bonding-only. With appropriate damage model, the FEA could successfully simulate the actual failure mode of the single slap joint samples.
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