Theoretical Analyses of Vibration and Sound Radiation Responses of Heated Symmetric Laminated Plates in Pre- and Post-Buckling Ranges

Abstract:

This paper presents theoretical investigations of vibration and sound radiation responses of laminated plates in thermal environments. Static thermal stresses are taken into account to describe the stress state of the vibrating plate. First-order shear deformation theory and von Karman nonlinear strain displacement relationship are used to represent the dynamic deformation. And then, governing equations are obtained with Hamilton’s principle. Response characters are studied in both the pre and post-buckling ranges. Results show that the bending stiffness of the heated plate drops in the pre-buckling range and increases after thermal buckling occurs. Thermal environment preforms as two opposite effects before and after buckling. Amplitudes of vibration and radiated sound of the thermal post-buckled plates show opposite variation trends.

• Periodical: Applied Mechanics and Materials (Volume 775)
• Pages: 23-27
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.775.23
• Online since: July 2015
• Authors: Wei Li, Qian Geng, Yue Ming Li*
• Keywords: Dynamic Response, Laminated Plate, Thermal Buckling

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