Vibration Analysis of Circular Magneto-electro-elastic Nano-plates based onEringen’s Nonlocal Theory
محل انتشار: ماهنامه بین المللی مهندسی، دوره: 28، شماره: 12
سال انتشار: 1394
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 410
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شناسه ملی سند علمی:
JR_IJE-28-12_015
تاریخ نمایه سازی: 12 دی 1395
چکیده مقاله:
The present work mainly studies the free vibration of circular magneto-electro-elastic (MEE) nanoplatesbased on Kirchhoff’s plate theory within the framework of nonlocal elasticity theory to accountfor the small scale effect. The MEE nano-plate studied here is considered to be fully clamped andsubjected to the external magnetic and electric potentials. Using nonlocal constitutive relations of MEEmaterials, the governing equations are derived by applying Maxwell’s equation and Hamilton’sprinciple. By employing Galerkin method, the eigen matrix form of the governing equation is obtained.The effect of magneto-electric potential on instability of the system is investigated and consequentlycritical values of applied potentials are calculated. A detailed numerical study is conducted to study theinfluences of the small scale effect, thickness and radius of the nano-plate and piezoelectric volumefraction of the MEE material on the natural frequencies of nano-plate. Furthermore, the effects of theapplied magnetic and electric potentials on the size-dependent natural frequencies are investigatednumerically.
کلیدواژه ها:
Magneto-electro-elasticNano-platesKirchhoff’s Plate TheoryNonlocal ElasticityNatural Frequency
نویسندگان
A Amiri
Department of Mechanical Engineering, Urmia University, Urmia, Iran
S.M Fakhari
Department of Mechanical Engineering, Urmia University, Urmia, Iran
I.J Pournaki
Department of Mechanical Engineering, Urmia University, Urmia, Iran
G Rezazadeh
Department of Mechanical Engineering, Urmia University, Urmia, Iran