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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/316

Title: Stability of laminated composite curved panels with cutout using finite element method
Authors: Dash, S
Asha, A V
Sahu, S K
Issue Date: 2004
Publisher: IIT, Kharagpur
Citation: Proceedings of the International Conference on Theoretical, Applied Computational and Experimental Mechanics (ICTACEM 2004), December 28-31, 2004 IIT, Kharagpur
Abstract: Cutouts are inevitable in structures due to practical consideration. The present study involves vibration and stability of laminated composite curved panels with cutouts using finite element method. The first order shear deformation (FSDT) is used to model the curved panels, considering the effects of transverse shear deformation and rotary inertia. Since the stress field is non-uniform due to cutout, plane stress analysis is carried out using the finite element method to determine the stresses and these are used to formulate the geometric stiffness matrix. The global matrices are obtained using skyline technique. The eigenvalues are obtained us ing subspace iteration scheme. The study reveals that the fundamental frequencies of vibration of an angle ply flat panel decrease with introduction of small cutouts but again rise with increase in size of cutout. However the higher frequencies of vibration continue to decrease up to a moderate size of cutout and then rise with further...
Description: Copyright for this articel belongs to the publisher of the Proceedings
URI: http://hdl.handle.net/2080/316
Appears in Collections:Conference Papers

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