Buckling of Piezoelectric Composite Cylindrical Shell Under Electro-thermo-mechanical Loading
الموضوعات :A Ghorbanpour Arani 1 , S Shams 2 , S Amir 3 , M.J Maboudi 4
1 - Faculty of Mechanical Engineering, University of Kashan---
Institute of Nanoscience & Nanotechnology, University of Kashan, Kashan
2 - Department of Mechanical Engineering, Faculty of Engineering, Mobarakeh Branch, Islamic Azad University
3 - Faculty of Mechanical Engineering, University of Kashan
4 - Faculty of Mechanical Engineering, University of Kashan
الکلمات المفتاحية: Cylindrical shell, Energy method, Piezoelectric polymeric, Electro-thermo-mechanical loadings, DWBNNT, Axial buckling,
ملخص المقالة :
Using principle of minimum total potential energy approach in conjunction with Rayleigh-Ritz method, the electro-thermo-mechanical axial buckling behavior of piezoelectric polymeric cylindrical shell reinforced with double-walled boron-nitride nanotube (DWBNNT) is investigated. Coupling between electrical and mechanical fields are considered according to a representative volume element (RVE)-based micromechanical model. This study indicates how buckling resistance of composite cylindrical shell may vary by applying thermal and electrical loads. Applying the reverse voltage or decreasing the temperature, also, increases the critical axial buckling load. This work showed that the piezoelectric BNNT generally enhances the buckling resistance of the composite cylindrical shell.
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