Most current applications of shape memory alloys (SMAs) make use of static properties. However, the hysteresis in the load-deformation behavior also constitutes a very efficient damping mechanism in vibrational applications. The paper studies the SDOF vibration of a rigid mass suspended by a thin-walled SMA tube under torsional loading. The behavior is analyzed for the cases of quasiplasticity and pseudoelasticity on the basis of an improved version of the Mueller-Achenbach model. To illustrate the damping capacity and the nonlinear vibration characteristics, both, free and forced vibration cases are considered.

Date Published: 14 June 2000
PDF: 8 pages
Proc. SPIE 3992, Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics, (14 June 2000); doi: 10.1117/12.388231

Published in SPIE Proceedings Vol. 3992:
Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics
Christopher S. Lynch, Editor(s)