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alireza Shooshtari

alireza Shooshtari

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId: 15045725700
HIndex:
Faculty: Faculty of Engineering
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Research

Title
Free vibration analysis of a magneto-electroelastic doubly-curved shell resting on a Pasternak-type elastic foundation
Type
JournalPaper
Keywords
magneto-electro-elastic shell, Pasternak foundation, free vibration, Donnell shell theory
Year
2014
Journal Smart Materials and Structures
DOI
Researchers ، alireza Shooshtari

Abstract

Free vibration of a simply-supported magneto-electro-elastic doubly-curved thin shell resting on a Pasternak foundation is investigated based on Donnell theory. The rotary inertia effect is considered in the formulation. Maxwell equations for electrostatics and magnetostatics are used to model the electric and magnetic behavior. The partial differential equations of motion are reduced to a single ordinary differential equation and an analytical relation is obtained for the natural frequency. After validation of the present study, several numerical studies is done to investigate the effects of the electric and magnetic potentials, spring and shear coefficients of the Pasternak foundation, and the geometry of the shell on the vibration frequency.