Computations of geometrically linear and nonlinear Ginzburg-Landau mo dels for martensitic pattern formation

Abstract
Computations show that a two dimensional geometrically nonlinear Ginzburg-Landau model with inertia exhibits long lived metastable states, that have martensite domains with split tips and bent needles similar to those observed in NiAl. In comparison, the geometrically linear model quickly relaxes to states with twins which extend all the way across the sample and have only short lived tip splitting and needle bending.

Note to the reader:
On page 03008-p4, Fig. 2 has been corrected on September 16, 2009