Free vibration analysis of rectangular sandwich plates with functionally graded core resting on elastic foundation using FSDT
Publish place: Third National Conference and First International Conference on Applied Research in Electrical, Mechanical and Mechatronics Engineering
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ELEMECHCONF03_0002
تاریخ نمایه سازی: 9 مرداد 1395
Abstract:
In this paper, free vibration analysis of rectangular sandwich plates with functionally graded core resting on Winkler–Pasternak elastic foundation is investigated using first order shear deformation theory. In functionally graded layer, the material properties are assumed to vary in an power law in thickness direction with the Poisson ratio to be constant. The equilibrium equations are derived by using energy method and then solved analytically by using Navier's method for a rectangular sandwich plate with simply supported boundary conditions. In order to verify the accuracy of the present theory, some numerical examples are solved and compared with other published solutions by using exact 3D analysis and other higher order shear deformation theories. Finally the effects of grading index, width to thickness ratio and Winkler and Pasternak coefficients on the frequency are investigated.
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Authors
Davoud Sirati
Department of Mechanical Engineering, Islamic Azad University, Karaj Branch, Karaj, Iran
Hamed Mottale
Department of Mechanical Engineering, Islamic Azad University, Karaj Branch, Karaj, Iran
Milad Hayati
Department of Mechanical Engineering, Islamic Azad University, Karaj Branch, Karaj, Iran
Masood Hayati
Department of Mechanical Engineering, Islamic Azad University, Karaj Branch, Karaj, Iran
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