%0 Journal Article %A Mahapatra, D. Roy %A Ghosh, D. P. %A Gopalakrishnan, S. %D 2006 %I Begell House %N 3 %P 337-349 %R 10.1615/IntJMultCompEng.v4.i3.40 %T Multiscale Finite Element Modelling of Pattern Formation in Magnetostrictive Composite Thin Film %U https://www.dl.begellhouse.com/journals/61fd1b191cf7e96f,2f8263727708f280,33a7246203f4760b.html %V 4 %X 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. %8 2006-09-27