The Effect of Adhesive for Fillet on Stress in Weld-Bonded Joints

Abstract:

The influence of the fillet with different elastic modulus on the stress distributed in weld-bonded aluminum alloy single lap joint was investigated using elasto-plastic finite element method. The results show that the peak values of the stress along the mid-bondline at the points near the fillet edge were increased as the elastic modulus of the fillet increased. But at points near the both ends of the adherend in over lap zone as well as in the region of the nugget the peak stresses were decreased except longitudinal stress Sx. The peak value of Seqv decreased first, and then it increased again as the elastic modulus in fillet increased. The load-bearing capacity of the whole weld-bonded joints may be improved for the fillet with Adhesive B (825 MPa) for the relative high stress region in nugget was wider and the stress distribution in overlap zone was more uniform.

• Periodical: Key Engineering Materials (Volume 450)
• Pages: 502-505
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.450.502
• Online since: November 2010
• Authors: Min You, Jia Ling Yan, Xiao Ling Zheng, Nan Feng Xiong, Ding Feng Zhu
• Keywords: Adhesive, Finite Element Model (FEM), Stress Distribution, Weld-Bonded Joint

References

[1] R.D. Adams, J. Comyn, W.C. Wake: Structural adhesive joints in engineering. (Chapman & Hall, UK 1997).

[2] L. Dorn, W. Liu: Int J of Adhesion and Adhesives. Vol. 13 (1993), p.21.

[3] T. P. Lang, P.K. Mallick: Int J of Adhesion and Adhesives. Vol. 18 (1998), p.167.

[4] M. You, Y. Zheng, X. L. Zheng, et al: Int J of Adhesion and Adhesives. Vol. 23 (2003), p.365.

[5] M. You, Y. Zheng, X. L. Zheng, et al: Key Eng. Mater. Vol. 385-387 (2006), p.225.

[6] J. L. Yan, M. You, X. L. Zheng, et al: Advanced Mater. Research. Vol. 97-101 (2010), p.767.

[7] M. You, J. L. Yan, X. L. Zheng, et al: J. of Aeronautical Materials. Vol. 29 (2009), p.98.