A More Exact Model for Predicting the Deflection of a Clamped Magnetostrictive Film-Substrate System
A more exact general analytical formula of preditcting the magnetostrictive coefficient is derived for any aspect ratio based the deflection difference between the x and y directions. The curvatures are found by minimizing the total energy of the system, which taking into account shear strain energy. The in-plane stress distribution including shear stress for short specimen is also given by the ANSYS® ﬁnite element package to illustrate the role of shear strain in the deformation of magnetostrictive film-substrate system.
Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng
M. Li "A More Exact Model for Predicting the Deflection of a Clamped Magnetostrictive Film-Substrate System", Advanced Materials Research, Vols. 197-198, pp. 552-557, 2011