ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Multiscale finite element modelling of pattern formation in magnetostrictive composite thin film

Roy Mahapatra, D and Ghosh, DP and Gopalakrishnan, S (2007) Multiscale finite element modelling of pattern formation in magnetostrictive composite thin film. In: International Journal for Multiscale Computational Engineering, 4 (3). pp. 337-349.

Full text not available from this repository.
Official URL: http://www.begellhouse.com/journals/61fd1b191cf7e9...

Abstract

A multiscale finite element model with subgrid-scale spatial homogenization and stability estimate for time discretization in the context of magnetostrictive composite thin-film micromagnetics are reported in this paper. Developments of the phenomenological microscopic constitutive model and the subsequent multiscale approach are aimed at analyzing the formation of magnetic domains in Terfenol-D/epoxy thin film under transverse magnetic (TM) mode of excitation. The phenomenological constitutive model is based on the density of domain switching (DDS) of an ellipsoidal inclusion in a unit cell. The subgrid-scale spatial homogenization works as a method of upwinding the small-scale micromagnetism and magnetostriction to the larger length scale. Numerical results indicate complex features of this thin-film dynamics, such as the formation of connected domains.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Begell House Inc.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 29 Jun 2007
Last Modified: 17 Jan 2012 10:07
URI: http://eprints.iisc.ernet.in/id/eprint/11315

Actions (login required)

View Item View Item