Thermomechanical transformation fatigue of SMA actuators Conference Paper

abstract

• As Shape Memory Alloys (SMA) gain popularity for use as large force actuators, one constitutive parameter that becomes particularly important is the thermomechanical fatigue life, in addition to maximum transformation strain and stability of actuation cycles. Even though the effect of thermal transformation cycles on the transformation characteristics of SMAs has been studied both experimentally and analytically, these studies have not been extended to high cycle levels related to the fatigue life. In this paper, a novel test frame and testing protocol are discussed to establish the transformation fatigue characteristics of SMAs under various loading conditions. Results are presented for the thermomechanical transformation fatigue life of SMA wire actuators under different applied stress levels and for different annealing conditions.

name of conference

• Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics

authors

• Lagoudas, Dimitris

published proceedings

• SMART STRUCTURES AND MATERIALS 2000 - ACTIVE MATERIALS: BEHAVIOR AND MECHANICS

author list (cited authors)

• Lagoudas, D. C., Li, C. C., Miller, D. A., & Rong, L. J.

citation count

• 20

complete list of authors

• Lagoudas, DC||Li, CC||Miller, DA||Rong, LJ

editor list (cited editors)

• Lynch, C. S.

publication date

• June 2000

publisher

• SPIE, the international society for optics and photonics  Publisher

published in

• Proceedings of SPIE  Journal

keywords

• Martensitic Volume Fraction
• Shape Memory Alloys (SMA)
• Thermomechanical Fatigue Life
• Transformation Temperatures

Digital Object Identifier (DOI)

• 10.1117/12.388225

International Standard Book Number (ISBN) 10

• 0-8194-3610-0

start page

• 420

end page

• 429

volume

• 3992

URL

• http%3A%2F%2Fdx.doi.org%2F10.1117%2F12.388225