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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/1541

Title: Parametric Instability of Laminated Composite Doubly Curved Shell Panels Subjected to Hygrothermal Environment
Authors: Sahu, S K
Rath, M K
Sahoo, R
Keywords: Dynamic Stability
Excitation Frequency
Hygrothermal environment
Dynamic load factor
Dynamic instability regions
Issue Date: Sep-2011
Citation: International Conference on Manufacturing Science and Technology (ICMST 2011) 16 to 18 September 2011. Singapore
Abstract: The dynamic stability behavior of laminated composite shells subjected to hygrothermal loadings are studied in the present investigation. A simple laminated model is developed for the vibration and stability analysis of laminated composite shells subjected to hygrothermal conditions. A computer program based on FEM in MATLAB environment is developed to perform all necessary computations. An eight-node isoparametric element is employed in the present The analysis with five degrees of freedom per node. Element elastic stiffness matrices, mass matrices, geometric stiffness matrix due to mechanical and hygrothermal loads and load vectors are derived using the principle of minimum potential energy. Quantitative results are presented to show the effects of curvature, ply-orientation, degrees of orthotropy and static load factors of laminate on dynamic stability of composite shells for different temperatures and moisture concentrations.
Description: Copyright belongs to proceeding publisher
URI: http://hdl.handle.net/2080/1541
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