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Analytical analysis of an electro statically actuated nano beam based on coupled stress theory

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Year: 2012
COI code: ISAV02_064
Paper Language: English

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Authors Analytical analysis of an electro statically actuated nano beam based on coupled stress theory

  Mohammad Fathi - Center of Advanced Systems and Technology (CAST), School of Mechanical Engineering College of Engineering, University of Tehran, Tehran, Iran
Aghil Yousefi-Koma -
Ehsan Maani Miandoab -


When the size of the structural elements such as beams, plates, and membranes (used as components in micro or nano electro mechanical system) becomes small, both the experimental and atomistic modelling methods show a considerable size effect in mechanical properties of these structures. On the other hand, the classical continuum theories cannot predict this size dependent behaviour of micro and nano structures. This paper aims to find an analyticalresponse of an electro statically actuated micro beam using recently developed nonclassical methods named, the modified couple stress. Taylor expansion is used to expandelectro-statically force and the equation of beam is solved using Modified Variation Iteration(MVI) method analytically. Consequently, the response of the system under different DC voltages and the effect of number of Taylor expansion terms are analysed in the end of the paper


Nano and Micro Beam, Couple Stress Theory, Variation Method

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COI code: ISAV02_064

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Fathi, Mohammad; Aghil Yousefi-Koma & Ehsan Maani Miandoab, 2012, Analytical analysis of an electro statically actuated nano beam based on coupled stress theory, 2nd International Conference on Acoustics and Vibration, تهران, دانشگاه صنعتي شريف, the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Fathi, Mohammad; Aghil Yousefi-Koma & Ehsan Maani Miandoab, 2012)
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The University/Research Center Information:
Type: state university
Paper No.: 55403
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