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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 41
ADVANCES IN THE ANALYSIS AND DESIGN OF COMPOSITES Edited by: B.H.V. Topping
Paper IV.1
Free Vibration Analysis of Deep Doubly Curved Sandwich Panels A.V. Singh
Department of Mechanical Engineering, The University of Western Ontario, London, Canada A.V. Singh, "Free Vibration Analysis of Deep Doubly Curved Sandwich Panels", in B.H.V. Topping, (Editor), "Advances in the Analysis and Design of Composites", Civil-Comp Press, Edinburgh, UK, pp 73-80, 1996. doi:10.4203/ccp.41.4.1
Abstract
This paper presents the free vibration analysis of doubly
curved open deep sandwich shells made of thin outer layers
and a relatively thick core. The outer layers are assumed to
be made of high strength and high density material. The
core is a low strength low density material. Rayleigh-Ritz
method, in which the displacement fields are defined by
Bezier surface patches, is used to obtain the natural
frequencies. The formulation procedure is developed for the
analysis of open panels circumscribed by four curvilinear
edges. Numerical results are obtained for circular
cylindrical and spherical sandwich panels with the boundary
conditions given by: panels with one curved edge clamped
and the remaining three edges free; two opposite edges
clamped and the other two completely free.
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