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Title: Parametric resonance characteristics of laminated composite doubly curved shells subjected to non-uniform loadingParametric resonance characteristics of laminated composite doubly curved shells subjected to non-uniform loading
Authors: Sahu, S K
Datta, P K
Keywords: composite
doubly curved shell
finite element
non-uniform loading
Issue Date: 2001
Publisher: Sage
Citation: Journal of Reinforced Plastics and Composites, Vol 20, Iss 18, P 1556-1576
Abstract: The parametric resonance characteristics of laminated composite doubly curved panels subjected to various in-plane static and periodic compressive edge loadings, including partial and concentrated edge loading are studied using finite element analysis. The first order shear deformation theory is used to model the doubly curved panels, considering the effects of transverse shear deformation and rotary inertia. The theory used is the extension of dynamic, shear deformable theory according to the Sander's first approximation for doubly curved laminated shells, which can be reduced to Love's and Donnell's theories by means of tracers. The effects of number of layers, static load factor, side to thickness ratio, shallowness ratio, boundary conditions, degree of orthotropy, ply orientations and various load parameters on the principal instability regions of doubly curved panels are studied in detail using Bolotin's method. Quantitative results are presented to show the effects of shell geometry, lamination details and load parameters on the stability boundaries. Results of plates and cylindrical shells are also presented as special cases and are compared with those available in the literature.
Description: Copyright for this article belongs to Sage DOI: 10.1177/073168401772679057
Appears in Collections:Journal Articles

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