Analysis of Sandwich Beam
Abstract
Sandwich beams are composite systems having high stiffness-to-weight and Strength-to-weight ratios and are used as light weight load bearing components. The use of thin, strong skin sheets adhered to thicker, lightweight core materials has allowed industry to build strong, stiff, light, and durable structures. Due to the use of viscoelastic polymer constituents, sandwich beams can exhibit time-dependent behaviour. This study examines the behaviour of sandwich beams driven by the viscoelastic rubber core. Finite element (FE) method is used to analyze the overall transient responses, harmonic responses and the static responses of the sandwich systems subject to a concentrated point load at the mid span of the beam.
In this study the skin, i.e. the top and bottom layers are made up of mild steel while the core is made up of rubber. The stress, strain, and deformation fields are analyzed. The core thickness is varied keeping the skin thickness constant and the behaviour of the sandwich beam is studied under static and dynamic conditions.
References
Project thesis of Roberts Tompkins submitted to TAMU University- Visco elastic analysis of Sandwich beam having Aluminum and Fiber reinforced polymer skins with polystyrene foam core- December 2009
Y. Swathi and Sd Abdul Kalam, “Sandwich Treatment in FRP beams: Static and Dynamic Response”. IJERT, vol1 9,2012,pp 2-5.
Noor AK and Burton WS, “Stress and free vibration analysis of multilayered composite panels” Compos Structures, vol11,1989,pp 183-204
Frostig Y, Baruch M, Vinley O and Sheinman I, “High order theory for sandwich beam behaviour with transversely flexible core”, J Eng Mech, vol 1 18, 1992, pp1026-1043.
Kant T and Swaminathan K, “Analytical solutions for the static analysis of laminated composite and sandwich plates based on a higher order refined theory”, Compos Structures, vol56, 2002, pp. 329-344.
Pandit MK, Sheikh AH and Singh BN, “ Analysis of laminated sandwich plates based on improved higher order zig zag theory”, J Sandwich Struct Mater, Vol 12 2010, pp.307-326.
K.Malekzadeh, M. R. Khalili and R.K. Mittal, “Local and Global Damped Vibrations of Plates with a viscoelastic soft flexible core: An improved high order approach” , Journal of sandwich structures and materials, vol7 2005,pp 431
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