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Studies from Islamic Azad University Have Provided New Data on Applied Physics

June 17, 2014

By a News Reporter-Staff News Editor at Physics Week -- Research findings on Applied Physics are discussed in a new report. According to news reporting originating in Tehran, Iran, by VerticalNews journalists, research stated, "In the present paper, the thermo-electro-mechanical vibration characteristics of a piezoelectric-nanoplate system (PNPS) embedded in a polymer matrix are investigated. The system is subjected to a non-uniform voltage distribution."

The news reporters obtained a quote from the research from Islamic Azad University, "The voltage distribution and in-plane preloads are very important in the resonance mode of smart composite nanostructures using PNPS. Small scale effects are taken into consideration using the nonlocal continuum mechanics. Hamilton's principle is employed to derive the nonlocal equations of motion. The governing equations are solved for various boundary conditions by using differential quadrature method (DQM). To verify the accuracy of the present results, a closed-form solution is also derived for the natural frequencies of simply supported PNPSs. The results of DQM are compared with those of exact solution and an excellent agreement is found. Finally, the effects of initial preload, temperature change, boundary conditions, aspect ratio, length-to-thickness ratio, nonlocal and non-uniform parameters on the vibration characteristics of PNPSs are studied."

According to the news reporters, the research concluded: "It is shown that the natural frequencies are quite sensitive to the non-uniform and nonlocal parameters."

For more information on this research see: Thermo-electro-mechanical vibration of coupled piezoelectric-nanoplate systems under non-uniform voltage distribution embedded in Pasternak elastic medium. Current Applied Physics, 2014;14(5):814-832. Current Applied Physics can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Current Applied Physics -

Our news correspondents report that additional information may be obtained by contacting S.R. Asemi, Islamic Azad Univ, North Tehran Branch, Young Researchers & Elites Club, Tehran, Iran.

Keywords for this news article include: Iran, Asia, Tehran, Applied Physics

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Source: Physics Week

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