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Free vibration analysis of deep doubly curved sandwich panels

โœ Scribed by A.V Singh

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
199 KB
Volume
73
Category
Article
ISSN
0045-7949

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โœฆ Synopsis

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. The RayleighยฑRitz method, in which the displacement ยฎelds are deยฎned 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: one curved edge clamped and the remaining three edges free as well as two opposite edges clamped and the other two completely free.

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