Nonlinear dynamic behavior of simply supported laminated composite plates subjected to blast load

This paper deals with the analysis and discussion of nonlinear dynamic response of a laminated composite plate subjected to blast load. Dynamic equations of the plate are derived by the use of the virtual work principle. The geometric nonlinearity effects are taken into account with the von Kármán l...

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Bibliographic Details
Published in:Journal of sound and vibration 2008-11, Vol.317 (3), p.883-897
Main Authors: KAZANCI, Zafer, MECITOGLU, Zahit
Format: Article
Language:English
Subjects:
Approximation
Blast loads
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Galerkin methods
Mathematical analysis
Nonlinear dynamics
Nonlinearity
Physics
Plates
Solid mechanics
Static elasticity (thermoelasticity...)
Structural and continuum mechanics
Vibration
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
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Summary:This paper deals with the analysis and discussion of nonlinear dynamic response of a laminated composite plate subjected to blast load. Dynamic equations of the plate are derived by the use of the virtual work principle. The geometric nonlinearity effects are taken into account with the von Kármán large deflection theory of thin plates. Approximate solutions for a simply supported plate are assumed for the space domain. The single term approximation functions are selected by considering the nonlinear static deformations of plate, which is obtained using finite element method. The Galerkin Method is used to obtain the nonlinear differential equations in the time domain. The finite difference method is applied to solve the system of coupled nonlinear equations. The results of approximate-numerical analysis are obtained and compared with the literature and finite element results. Good agreement is found for the character and frequencies of vibrations.
ISSN:0022-460X
1095-8568
DOI:10.1016/j.jsv.2008.03.033