Failure Mode and Analysis of the Bonded/bolted Joints between a Hybrid Fibre Reinforced Polymer and Aluminium Alloy

Subject Areas : Composite materials

Yogesh Lakshmi Narasimman ¹ , Arunkumar N ²

1 - Department of Mechanical Engineering St. Joseph’s College Of Engineering, Chennai, India.
2 - Department of Mechanical Engineering St. Joseph’s College Of Engineering, Chennai, India.

Received: 2014-08-22 Accepted : 2015-07-05 Published : 2015-04-01

Keywords: Variable substrates, adhesive bonding, mechanical fastening, hybrid joining, Failure modes,

Abstract :

Composites are being used extensively in several engineering applications. However, the efficiency of the joints used in joining composites and metals can be improved. To move towards a sustainable and environment friendly future, natural fibre composite material was used. Towards the above objective, research work was carried out for the assembly between a composite and aluminium. Three different joints namely adhesive bonding, mechanical fastening and hybrid joining were considered for the assembly of variable substrates. Two different types of adhesives namely high modulus acrylic adhesive and low modulus rubber adhesive were chosen for the study. Tensile tests were performed to evaluate the joint strength and failure modes for different joining techniques. It has been found that for acrylic type adhesive, adhesive bonding proves to be suitable. The effect of bolting had no significant effect on the joint strength in hybrid joints for the acrylic type adhesive. For the rubber type adhesive, hybrid joint shows better performance than other types of joints. The effect of bolting for rubber type adhesive in hybrid joint significantly improved the load carrying ability of the joint.

References:

1. Jin-Hwe Kweon, Jae-Woo Jung, Tae-Hwan Kim, Jin-Ho Choi, and Dong-Hyun Kim, “Failure of carbon composite-to-aluminum joints with combined mechanical fastening and adhesive bonding,” Compos Struct, vol. 75, 2006, pp. 192–198.


2. P. P. Camanho, C. M. L. Tavares, R. de Oliveira, A. T. Marques, and A. J. M. Ferreira, “Increasing the efficiency of composite single-shear lap joints using bonded inserts,” Compos Part B, vol. 36, 2005, pp. 372–383.


3. Maofeng Fu and P. K. Mallick, “Fatigue of hybrid (adhesive/bolted) joints in SRIM composites,” Int J Adhes, vol. 21, 2001,
   pp. 145–159.


4. S. Gomez, J. Onoro, and J. Pecharroman, “ASimple mechanical model of a structural hybrid adhesive/riveted single lap joint,” Int J Adhes Adhes, vol. 27, 2007, pp. 263–267.


5. L. J. Hart-Smith, “Bonded-bolted composite joints,” J Aircr., vol. 22(11), 1985, pp. 993–1000,.


6. Young-Hwan Lee, Do-Wan Lim, Jin-Ho Choi, Jin-Hwe Kweon, and Myung-Keun Yoon, “Failure load evaluation and prediction of hybrid composite double lap joints,” Compos Struct, vol. 92, 2010, pp. 2916–2926.


7. Haider Al-Zubaidy, Xiao-Ling Zhao, and Riadh Al-Mahaidi, “Dynamic bond strength between CFRP sheet and steel,” Compos Struct, 2012.


8. Tien-Cuong Nguyen, Y. Bai, Xiao-Ling Zhao, and Riadh Al-Mahaidi, “Effects of ultraviolet radiation and associated elevated temperature on mechanical performance of steel/CFRP double strap joints,” Compos Struct, vol. 94, 2012, pp. 3563–3573.


9. R. Sarfaraz, P. Anastasios, Vassilopoulos, and T. Keller, “Experimental investigation and modeling of mean load effect on fatigue behaviour of adhesively-bonded pultruded GFRP joints,” Int J Fatigue, vol. 44, 2012, pp. 245–252.


10. Haider Al-Zubaidy, Riadh Al-Mahaidi, and Xiao-Ling Zhao, “Experimental investigation of bond characteristics between CFRP fabrics and steel plate joints under impact tensile loads,” Compos Struct, vol. 94, 2012, pp. 510-518.


11. Kwang-Soo Kim, Jae-Seok Yoo, Yeong-Moo Yi, and Chun-Gon Kim, “Failure mode and strength of uni-directional composite single lap bonded joints with different bonding methods,” Compos Struct, vol. 72, 2006, pp. 477–485.


12. L. J. Hart-Smith, Mechanically fastened joints for advanced composites, phenomenological considerations and simple analysis. Plenum Press, 1980.


13. T. Ireman, “Three-dimensional stress analysis of bolted single-lap composite joints,” Compos Struct, vol. 43, 1998, pp. 195–216.


14. J. M. Whitney and R. J. Nuismer, “Stress fracture criteria for laminated composites containing stress concentrations,” J Compos Mater, vol. 8, 1974, pp. 253–265.


15. J. M. Whitney and R. J. Nuismer, “Uniaxial failure of composite laminated containing stress concentrations,” Fract. Mech. Compos., vol. 593, 1975, no. 117–142.


16. F. K. Chang and R. A. Scott, “Strength of mechanically fastened composite joints,” J Compos Mater, vol. 16, 1982, pp. 470–494.


17. F. K. Chang and R. A. Scott, “Failure of composite laminates containing pin loaded holes-method of solution,” J Compos Mater, vol. 18, 1984, pp. 255–278.


18. J. H. Choi and Y. J. Chun, “Failure load prediction of mechanically fastened composite joint,” J Compos Mater, vol. 37(24), 2003, pp. 2163–2177.


19. C. O. Ryu, J. H. Choi, and J. H. Kweon, “Failure load prediction of composite joints using linear analysis,” J Compos Mater, vol. 41(7), 2007, pp. 865–878.


20. G. Kelly, “Quasi-static strength and fatigue life of hybrid (bonded/bolted) composite single-lap joints,” Compos Struct, vol. 72, 2006, pp. 119–129.


21. F. Moroni, A. Pirondi, and F. Kleiner, “Experimental analysis and comparison of the strength of simple and hybrid structural joints,” Int J Adhes Adhes, vol. 30, 2010, pp. 367–379.


22. G. Kelly, “Load transfer in hybrid (bonded/bolted) composite single-lap joints,” Compos Struct, vol. 69, 2005, pp. 35–43.


23. R. Matsuzaki, M. Shibata, and A. Todoroki, “Improving performance of GFRP/aluminum single lap joints using bolted/co-cured hybrid method,” Compos Part A, vol. 39, 2008, pp. 154–163.


24. S. V Joshi, L. T. Drzal, A. K. Mohanty, and S. Arora, “Are natural fiber composites environmentally superior to glass fiber reinforced composites?,” Compos Part A, vol. 35, 2004, pp. 371–376.


25. A. Lundahl, R. Fangueiro, F. Soutinho, and F. Duarte, “Waste Fibre Reinforced Ecocomposites,” Mater Sci Forum, vol. 636–637, 2010, pp. 1415–1420.