RT Journal Article
ID 33a7246203f4760b
A1 Mahapatra, D. Roy
A1 Ghosh, D. P.
A1 Gopalakrishnan, S.
T1 Multiscale Finite Element Modelling of Pattern Formation in Magnetostrictive Composite Thin Film
JF International Journal for Multiscale Computational Engineering
JO JMC
YR 2006
FD 2006-09-27
VO 4
IS 3
SP 337
OP 349
AB 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.
PB Begell House
LK https://www.dl.begellhouse.com/journals/61fd1b191cf7e96f,2f8263727708f280,33a7246203f4760b.html