A Comparison of Different Joining Options of Hybrid Composite Joints for Improved Fatigue Life

A. H. Khawaja, A. Tariq, W. A. Khan, Y. Baig

Abstract


The use of composite materials has increased rapidly in the last couple of decades especially in the aerospace industry due to its lighter weight, higher stiffness and better fatigue properties. The fiber metal laminates (FML) assemblies design normally involves an interaction between composites (carbon fiber) and metallic parts (AA 6061 T6) and these interfaces often prove to be the weakest portions of the structures. This research has therefore focused on carrying out a comparison of different joining techniques of composites with metals keeping in view the tensile and fatigue properties of double lap joint configuration. For this purpose simple adhesive joints, hybrid joints (adhesive +rivets) and joints having adhesive pins in metal plate were prepared and tested. The research also involves finite element modeling of these joints and their subsequent experimental validation. The results showed higher strength of hybrid joint, in which a combination of fasteners and adhesive was used; however, the novel idea of using adhesive pins could not be successful.

Full Text:

PDF

References


Y. Du and L. Shi, Effect of vibration fatigue on modal properties of single lap adhesive joints., International Journal of Adhesion & Adhesives, vol. 53, pp. 72.79, 2014.

T. Dursu and C. Soutis, Recent developments in advanced aircraft aluminum alloys., Materials and Design, vol. 56, pp: 862-871, 2013.

K. Ali, Tekelioglu and F. Fehim, Effects of various parameters on dynamic characteristics in adhesively bonded joints., Materials Letters, vol. 58, pp. 3451-3456, 2004.

G. Kelly, Quasi-static strength and fatigue life of hybrid (bonded/bolted) composite single-lap joints., Composite Structures, vol. 72, no. 1, pp. 119.129, 2006.

S. K. Mazumdar and P. K. Mallick, Static and fatigue behavior of adhesive joints in SMC-SMC composites., Polymer Composites, vol. 19, no. 2, pp. 139.146, 1998.

S. Azari, M. Papini and J. K. Spelt, Effect of adhesive thickness on fatigue and fracture of toughened epoxy joints.part I: experiments., Engineering Fracture Mechanics, vol. 78, no. 1, pp. 153.162, 2011.

S. Azari, M. Papini and J. K. Spelt, Effect of adhesive thickness on fatigue and fracture of toughened epoxy joints. part II: Analysis and finite element modeling., Engineering Fracture Mechanics, vol. 78, no. 1, pp. 138.152, 2011.

Q. Zeng and C. T. Sun, Fatigue performance of a bonded wavy composite lap joint., Fatigue & Fracture of Engineering Materials & Structures, vol. 27, no. 5, pp. 413.422, 2004.

M. Imanaka , K. Haraga and T. Nishikawa, Fatigue strength of adhesive/rivet combined lap joints., The Journal of Adhesion, vol. 49, no. 3-4, pp. 197.209, 2006.

G. Kelly, Quasi-static strength and fatigue life of hybrid (bonded/bolted) composite single-lap joints., Composite Structures, vol. 72, no. 1, pp. 119.129, 2006.

J.H. Kweon, J.W. Jung, T.H. Kim, J.H. Choi and D.H. Kim, Failure of carbon composite-to-aluminum joints with combined mechanical fastening and adhesive bonding., Compos. Struct., vol. 75, pp. 192.198, 2006.

A. Kwakernaak and J.C.J. Hofsiede, Adhesive bonding: providing improved fatigue resistance and damage tolerance at lower costs., SAMPE Journal, vol. 44, no. 5, pp. 6.15, 2008.

C.-T. Hoang-Ngoc and E. Paroissien, Simulation of single lap bonded and hybrid (bolted/bonded) joints with flexible adhesive., International Journal of Adhesion and Adhesives, vol. 30, no. 3, pp. 117.129, 2010.

Yu Du and Lu Shi, Effect of vibration fatigue on modal properties of single lap adhesive joints., International Journal of Adhesion & Adhesives, vol. 53, pp. 72.79, 2014.

T. L. Yogesh and N. Arunkumar, Failure mode and analysis of the bonded/bolted joints between a hybrid fibre reinforced polymer and aluminium alloy., Journal of Advanced Materials and Processing, vol.3, no. 2, pp. 49-60, 2015.

Araldite LY 5052 / AradurR 5052* Cold Curing Epoxy Systems data sheet.pdf. Advanced Materials, Huntsman Corporation, 2010, http://www.chemcenters.com/images/suppliers/ 169257/Araldite %20LY5052,%20Aradur%205052.pdf

Carbon fiber Tairyfil Carbon Fiber data sheet, Formosa Plastics Corporation,2014, look at: http://www.fpc.com.tw/ fpcwup loads/pdocument/pdocument_150128165215.pdf

Standard test method for strength properties of double lap shear adhesive joints by tension loading, ASTM D 3528 . 96, reapproved 2002, DOI: 10.1520/D3528-96R02.

R.F Gibson, Principles of composite material mechanics., McGraw-Hill, 1994.

C. Sun, M.D. Thouless, A.M. Waas, J.A. Schroeder and P.D. Zavattieri, Ductile-brittle transitions in the fracture of plastically deforming, adhesively bonded structures. Part II: Numerical studies., International Journal of Solids and Structures, vol. 45, no. 17, pp. 4725-4738, 2008.

M. Meo and E. Thieulot, Delamination modelling in a double cantilever beam., Composite Structures, vol. 71, no. 3-4, pp. 429-434, 2005.

C. Fan, P.Y.B. Jar and J.J.R. Cheng, Cohesive zone with continuum damage properties for simulation of delamination development in fibre composites and failure of adhesive joints., Engineering Fracture Mechanics, vol. 75, no. 13, pp. 3866-3880, 2008.

N. Chandra, H. Li, C. Shet and H. Ghonem, Some issues in the application of cohesive zone models for metal-ceramic interfaces., Int. J. Solids Struct., vol. 39, no. 10, pp. 2827-2855, 2002.

S. Venkateswarlu and K. Rajasekhar, Modelling and analysis of hybrid composite joint using fem in ansys., IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE), vol. 6, pp. 01-06, 2013.


Refbacks

  • There are currently no refbacks.