Navier-type Free Vibration Analysis of Porous Smart Plates According to Reddy’s Plate Theory
سال انتشار: 1396
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 458
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شناسه ملی سند علمی:
CMME01_005
تاریخ نمایه سازی: 5 آذر 1397
چکیده مقاله:
This paper aims to present an exact Navier solution for free vibration analysis of thick rectangular plates made of functionally graded porous materials surrounded by piezoelectric layers. Mechanical properties of the porous material vary across the thickness of plate according to two different porosity distribution. On the basis of third-order shear deformation plate theory, six governing equations of the system are obtained by using Hamilton’s principle and Maxwell’s equation for closed and open circuit electrical conditions. Natural frequencies are obtained for porous smart plates with simply supported edges and verified with the known results in literature. A detailed numerical study is conducted to examine the effects of porosity coefficient and piezoelectric layer thickness on natural frequencies of the plate for different thickness-length ratios, modes, electrical boundary conditions, and material properties. It is found that the effects of electrical boundary conditions and the porosity coefficient on the natural frequencies are significant.
کلیدواژه ها:
Free vibration ، Third order shear deformation theory ، Navier solution ، Porous materials ، Piezoelectric materials
نویسندگان
Mahmoud Askari
Department of Mechanical Engineering, Shahid Bahonar University of Kerman Kerman, ۷۶۱۶۹۱۴۱۱۱, Iran
Ali Reza Saidi
Department of Mechanical Engineering, Shahid Bahonar University of Kerman Kerman, ۷۶۱۶۹۱۴۱۱۱, Iran
Amir Sajjad Rezaei
Department of Mechanical Engineering, Shahid Bahonar University of Kerman Kerman, ۷۶۱۶۹۱۴۱۱۱, Iran
Mahdieh Abdollahi Bacizi
epartment of Mechanical Engineering, Shahid Bahonar University of Kerman Kerman, ۷۶۱۶۹۱۴۱۱۱, Iran