Free vibration analysis of composite sandwich plates based on Reddy's higher-order theory
Free vibration analysis of composite sandwich plates based on Reddy's higher-order theory
Two new C0 assumed strain finite element formulations of Reddy's higher-order theory are used to determine the natural frequencies of isotropic, orthotropic, and layered anisotropic composite and sandwich plates. The material properties typical of glass fibre polyester resins for the skin and HEREX C70 PVC (polyvinyl chloride) foam materials for the core are used to show the parametric effects of plate aspect ratio, length-to-thickness ratio, degree of orthotropy, number of layers and lamination scheme on the natural frequencies. A consistent mass matrix is adopted in the present formulation. The results presented in this investigation could be useful for a better understanding of the behaviour of sandwich laminates under free vibration conditions and potentially beneficial for designers of sandwich structures
free vibration
505-519
Nayak, A.K.
20538650-e051-4cbc-803c-0398fc181aaf
Moy, S. S. J.
d1b1f023-d32a-4b00-8a3f-17c89f91a51e
Shenoi, R.A.
a37b4e0a-06f1-425f-966d-71e6fa299960
2002
Nayak, A.K.
20538650-e051-4cbc-803c-0398fc181aaf
Moy, S. S. J.
d1b1f023-d32a-4b00-8a3f-17c89f91a51e
Shenoi, R.A.
a37b4e0a-06f1-425f-966d-71e6fa299960
Nayak, A.K., Moy, S. S. J. and Shenoi, R.A.
(2002)
Free vibration analysis of composite sandwich plates based on Reddy's higher-order theory.
Composites Part B: Engineering, 33 (7), .
(doi:10.1016/S1359-8368(02)00035-5).
Abstract
Two new C0 assumed strain finite element formulations of Reddy's higher-order theory are used to determine the natural frequencies of isotropic, orthotropic, and layered anisotropic composite and sandwich plates. The material properties typical of glass fibre polyester resins for the skin and HEREX C70 PVC (polyvinyl chloride) foam materials for the core are used to show the parametric effects of plate aspect ratio, length-to-thickness ratio, degree of orthotropy, number of layers and lamination scheme on the natural frequencies. A consistent mass matrix is adopted in the present formulation. The results presented in this investigation could be useful for a better understanding of the behaviour of sandwich laminates under free vibration conditions and potentially beneficial for designers of sandwich structures
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Published date: 2002
Keywords:
free vibration
Organisations:
Civil Engineering & the Environment
Identifiers
Local EPrints ID: 74060
URI: http://eprints.soton.ac.uk/id/eprint/74060
ISSN: 1359-8368
PURE UUID: 32114955-aa66-427d-9c56-2684ba5985c4
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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 22:25
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Author:
A.K. Nayak
Author:
S. S. J. Moy
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