Simulation-based assessment of coupled frequency response of magneto-electro-elastic auxetic multifunctional structures subjected to various electromagnetic circuits

Mahesh, V and Mahesh, V and Harursampath, D and Abouelregal, AE (2021) Simulation-based assessment of coupled frequency response of magneto-electro-elastic auxetic multifunctional structures subjected to various electromagnetic circuits. In: Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications .

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Abstract

This article deals with the modeling of magneto-electro-elastic auxetic structures and developing a methodology in COMSOL Multiphysics® to assess the free vibration response of such structures when subjected to various electromagnetic circuit conditions. The triple energy interaction between elastic, magnetic, and electric fields are established in the COMSOL Multiphysics® using structural mechanics and electromagnetic modules. The multiphase magneto-electro-elastic material with different percentages of piezoelectric and piezomagnetic phases are used as the material. In the solid mechanics module, the piezoelectric and piezomagnetic materials were created in stress-charge and stress-magnetization forms, respectively. The electric and magnetic fields are defined in COMSOL Multiphysics® through electromagnetic equations. Further, the customized controlled meshing constituted of free tetrahedral and triangular elements is adapted to trade-off between the accuracy and the computational expenses. The eigenvalue analysis is performed to obtain the natural frequencies of the MEE re-entrant auxetic structures. Also, the efficiency of smart auxetic structures over conventional honeycomb structures is presented throughout the manuscript. In addition, the discrepancy in the natural frequencies of the structures considering coupled and uncoupled state is also illustrated. It is believed that the modeling procedure and its outcomes serve as benchmark solutions for further design and analysis of smart auxetic magneto-electro-elastic structures. © IMechE 2021.

Item Type:	Journal Article
Publication:	Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
Publisher:	SAGE Publications Ltd
Additional Information:	The copyright for this article belongs to SAGE Publications Ltd
Keywords:	Coupled circuits; Economic and social effects; Eigenvalues and eigenfunctions; Elasticity; Frequency response; Honeycomb structures; Magnetoelectric effects; Natural frequencies; Piezoelectric devices; Piezoelectricity; Stresses; Timing circuits, Electric and magnetic fields; Electromagnetic circuits; Electromagnetic equations; Free vibration response; Magneto electro elastic; Magneto-electro-elastic materials; Multi-functional structures; Piezomagnetic materials, Magnetic field effects
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	25 Aug 2021 10:22
Last Modified:	26 Aug 2021 10:16
URI:	http://eprints.iisc.ac.in/id/eprint/69351

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