Soft-spring nonlinear vibrations of antisymmetrically laminated rectangular plates |
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Authors: | David Hui |
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Affiliation: | Department of Engineering Mechanics, The Ohio State University, Columbus, Ohio 43210, U.S.A. |
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Abstract: | This paper deals with the effects of initial geometric imperfections and in-plane boundary conditions on the large-amplitude vibration behavior of angle- and cross-ply rectangular thin plates. It is found that the presence of imperfection amplitudes of the order of only half the total laminated-plate thickness may significantly raise the vibration frequencies and change the large-amplitude vibration behavior from the well-known hard-spring to soft-spring behavior. The effects of fibre angles and bending-stretching coupling for angle-ply plates and Young's moduli ratios and number of layers for antisymmetric cross-ply plates are examined. |
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