Fatigue Life and Residual Strength Analysis of Steel-Composite Joints

Abstract:

There are many instances where the use of weight saving composite materials for an entire structure is either; too complex, too expensive or unfeasible. In these circumstances the use of a hybrid structure can incorporate the benefits of traditional construction materials, for example steel, coupled with the advantages of composite materials in weight critical areas. In the present study, an investigation was undertaken into the fatigue life characterisation of a hybrid joint for marine application. In addition the residual strength of the joint, after a fixed number of fatigue cycles, was assessed under axial compression and bending loads. A progressive damage model was developed to predict the location of major stress concentrations, the path of damage and subsequent loss in stiffness of the joint under axial compression.

• Periodical: Applied Mechanics and Materials (Volumes 1-2)
• Pages: 81-86
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.1-2.81
• Online since: September 2004
• Authors: S.W. Boyd, J.I.R. Blake, R.A. Shenoi, J. Mawella
• Keywords: Fatigue, Hybrid Joint, Residual Strength

References

[1] Baker, A., Repair Of Cracked Or Defective Metallic Aircraft Components With Advanced Fibre Composites - An Overview Of Australian Work, Composite Structures, 2: 153-181, (1984).

DOI: 10.1016/0263-8223(84)90025-4

[2] Shin, K.C., Kim, Y.G., Lee, D.G., Choi, J.M., Adhesively Bonded Lap-Joints For Composite-Steel Shell Structure Of High-Speed Vehicles, Composite Structures 38(1-4): 215-227, (1997).

DOI: 10.1016/s0263-8223(97)00057-3

[3] Le Lan, J.Y., Parneix, P., Gueguen, P.L., Composite Material Superstructures, Intl. Conf. On Nautical Construction With Composite Materials, 7-9th Dec, 1992, Paris, France.

[4] Boyd, S.W., Blake, J.I.R., Shenoi, R.A., Mawella, J., Fatigue Life Characterisation Of Hybrid Composite-Steel Joints, Proc. Of The Intl. Conf. On Advanced Marine Materials: Technology & Applications, 9-10 October 2003, London, Uk.

DOI: 10.3940/rina.amm.2003.11

[5] Clifford, S.M., Manger, C.I.C., Clyne, T.W., Characterisation Of A Glass-Fibre Reinforced Vinylester To Steel Joint For Use Between A Naval Grp Superstructure And A Steel Hull, Composite Structures, 57(1-4): 59-66, (2002).

DOI: 10.1016/s0263-8223(02)00063-6

[6] Cao, J, Grenestedt, J.L., Test Of A Redesigned Glass-Fibre Reinforced Vinyl Ester To Steel Joint For Use Between A Naval Grp Superstructure And A Steel Hull, Composite Structures, 60: 439-445, (2003).

DOI: 10.1016/s0263-8223(03)00020-5

[7] Shenoi, R.A., Read, P.J.C. L, Hawkins, G.L., Fatigue Failure Mechanisms In FibreReinforced Plastic Laminated Tee Joints, International Journal Of Fatigue, 7(6): 415-426, (1995).

DOI: 10.1016/0142-1123(95)98238-x

[8] Burman, M., Zenkert, D., Fatigue Of Foam Core Sandwich - 1: Undamaged Specimens, International Journal Of Fatigue, 19(7): 551-561, (1997).

DOI: 10.1016/s0142-1123(97)00069-8

[9] Lee, J., Harris, B., Almond, D.P., Hammett, F., Fibre Composite Fatigue - Life Determination, Composites Part A, 28a: 5-15, (1997).

DOI: 10.1016/s1359-835x(96)00088-7