FREQUENCY ANALYSIS OF EMBEDDED ORTHOTROPIC CIRCULAR AND ELLIPTICAL MICRO/NANO-PLATES USING NONLOCAL VARIATIONAL PRINCIPLE

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ANJOMSHOA A.; SHAHIDI A.R.; SHAHIDI S.H.; NAHVI H.

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Journal: JOURNAL OF SOLID MECHANICS Year:2015 | Volume:7 | Issue:1 Page(s): 13-27

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Title

FREQUENCY ANALYSIS OF EMBEDDED ORTHOTROPIC CIRCULAR AND ELLIPTICAL MICRO/NANO-PLATES USING NONLOCAL VARIATIONAL PRINCIPLE

Author(s)

ANJOMSHOA A. | SHAHIDI A.R. | SHAHIDI S.H. | NAHVI H. | Issue Writer Certificate

Keywords

NONLOCAL ELASTICITY THEORY

FREQUENCY ANALYSIS

ELLIPTICAL NANO-PLATE

VARIATIONAL PRINCIPLE

Abstract

In this paper, a continuum model based on the NONLOCAL ELASTICITY THEORY is developed for vibration analysis of embedded orthotropic circular and elliptical micro/nano-plates. The nano-plate is bounded by a Pasternak foundation. Governing vibration equation of the nonlocal nano-plate is derived using Nonlocal Classical Plate Theory (NCPT). The weighted residual statement and the Galerkin method are applied to obtain a Quadratic Functional. The Ritz functions are used to form an assumed expression for transverse displacement which satisfies the kinematic boundary conditions. The Ritz functions eliminate the need for mesh generation and thus large degrees of freedom arising in discretization methods such as Finite Element Method (FEM). Effects of nonlocal parameter, lengths of nano-plate, aspect ratio, mode number, material properties and foundation parameters on the nano-plate natural frequencies are investigated. It is shown that the natural frequencies depend on the non-locality of the micro/nano-plate, especially at small dimensions.

Cites

NONLOCAL BENDING ANALYSIS OF BILAYER ANNULAR/CIRCULAR NANO PLATES BASED ON FIRST ORDER SHEAR DEFORMATION THEORY

References

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APA: Copy

ANJOMSHOA, A., SHAHIDI, A.R., SHAHIDI, S.H., & NAHVI, H.. (2015). FREQUENCY ANALYSIS OF EMBEDDED ORTHOTROPIC CIRCULAR AND ELLIPTICAL MICRO/NANO-PLATES USING NONLOCAL VARIATIONAL PRINCIPLE. JOURNAL OF SOLID MECHANICS, 7(1), 13-27. SID. https://sid.ir/paper/319368/en

Vancouver: Copy

ANJOMSHOA A., SHAHIDI A.R., SHAHIDI S.H., NAHVI H.. FREQUENCY ANALYSIS OF EMBEDDED ORTHOTROPIC CIRCULAR AND ELLIPTICAL MICRO/NANO-PLATES USING NONLOCAL VARIATIONAL PRINCIPLE. JOURNAL OF SOLID MECHANICS[Internet]. 2015;7(1):13-27. Available from: https://sid.ir/paper/319368/en

IEEE: Copy

A. ANJOMSHOA, A.R. SHAHIDI, S.H. SHAHIDI, and H. NAHVI, “FREQUENCY ANALYSIS OF EMBEDDED ORTHOTROPIC CIRCULAR AND ELLIPTICAL MICRO/NANO-PLATES USING NONLOCAL VARIATIONAL PRINCIPLE,” JOURNAL OF SOLID MECHANICS, vol. 7, no. 1, pp. 13–27, 2015, [Online]. Available: https://sid.ir/paper/319368/en

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