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Modeling of Piezocomposites using Variational Asymptotic Method

Agrawal, Shashank and Harursampath, Dineshkumar (2015) Modeling of Piezocomposites using Variational Asymptotic Method. In: International Conference on Numerical Analysis and Applied Mathematics (ICNAAM), SEP 22-28, 2014, Rhodes, GREECE.

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Official URL: http://dx.doi.org/ 10.1063/1.4912585

Abstract

This work presents the development of piezocomposites made up of Macro Fiber Composites (MFCs) for aerospace applications and specifically involves, their computational analysis, material characterization and certain parametric studies. MFC was developed by NASA Langley Research Center in 1996 and currently is being distributed by Smart Material Co. 1] worldwide and finds applications both as an actuator as well as for sensor in various engineering applications. In this work, MFC is being modeled as an actuator and a theoretical formulation based on Variational Asymptotic Method (VAM) 2] is presented to analyse the laminates made up of MFCs. VAM minimizes the total electro-mechanical energy for the MFC laminate and approaches the exact solution asymptotically by making use of certain small parameters inherent to the problem through dimensional reduction. VAM provides closed form solutions for 1D constitutive law, recovery relations of warpings, 3D stress/strain fields and displacements and hence an ideal tool for carrying out parametric and design studies in such applications. VAM is geometrically exact and offers rigorous material characterization through cross-sectional analysis and dimensional reduction.

Item Type: Conference Proceedings
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Additional Information: International Conference on Numerical Analysis and Applied Mathematics (ICNAAM), Rhodes, GREECE, SEP 22-28, 2014
Keywords: PiezoComposites; MFC; Variational Asymptotic Method; VAM; Electro-Mechanical
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 19 Jul 2015 09:27
Last Modified: 19 Jul 2015 09:27
URI: http://eprints.iisc.ernet.in/id/eprint/51843

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