Transient response of composite sandwich plates
Transient response of composite sandwich plates
The transient response of orthotropic, layered composite sandwich plates is investigated by using two new C^0 four and nine node finite element formulations of a refined form of Reddy's higher-order theory. This refined third order theory accounts for parabolic variation of the transverse shear stresses, and requires no shear correction factors. The assumed strain approach is employed to model both thin and thick plates without any major defects like shear locking and parasitic spurious zero energy modes. A consistent mass matrix formulation is adopted. The Newmark direct integration scheme is used to solve the governing equilibrium equations. The parametric effects of plate aspect ratio, length to thickness ratio, boundary conditions and lamination scheme on the transient response are investigated. The present results are in very close agreement with earlier published results in the literature and can serve as a benchmark for future investigators.
dynamic response, assumed strain approach, refined third order theory, composite sandwich plates
249-267
Nayak, A.K.
20538650-e051-4cbc-803c-0398fc181aaf
Shenoi, R.A.
a37b4e0a-06f1-425f-966d-71e6fa299960
Moy, S.S.J.
d1b1f023-d32a-4b00-8a3f-17c89f91a51e
2004
Nayak, A.K.
20538650-e051-4cbc-803c-0398fc181aaf
Shenoi, R.A.
a37b4e0a-06f1-425f-966d-71e6fa299960
Moy, S.S.J.
d1b1f023-d32a-4b00-8a3f-17c89f91a51e
Nayak, A.K., Shenoi, R.A. and Moy, S.S.J.
(2004)
Transient response of composite sandwich plates.
Composite Structures, 64 (3-4), .
(doi:10.1016/S0263-8223(03)00135-1).
Abstract
The transient response of orthotropic, layered composite sandwich plates is investigated by using two new C^0 four and nine node finite element formulations of a refined form of Reddy's higher-order theory. This refined third order theory accounts for parabolic variation of the transverse shear stresses, and requires no shear correction factors. The assumed strain approach is employed to model both thin and thick plates without any major defects like shear locking and parasitic spurious zero energy modes. A consistent mass matrix formulation is adopted. The Newmark direct integration scheme is used to solve the governing equilibrium equations. The parametric effects of plate aspect ratio, length to thickness ratio, boundary conditions and lamination scheme on the transient response are investigated. The present results are in very close agreement with earlier published results in the literature and can serve as a benchmark for future investigators.
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Published date: 2004
Keywords:
dynamic response, assumed strain approach, refined third order theory, composite sandwich plates
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Local EPrints ID: 23725
URI: http://eprints.soton.ac.uk/id/eprint/23725
ISSN: 0263-8223
PURE UUID: 706cbe3f-cbae-4fcc-b238-adfb367a090c
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Date deposited: 23 Mar 2006
Last modified: 15 Mar 2024 06:49
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Author:
A.K. Nayak
Author:
S.S.J. Moy
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