Frequency response of single-crystal Ni-Mn-Ga FSMAs

Christopher P. Henry; Pablo G. Tello; David Bono; Julee Hong; Ryan Wagner; Jessica Dai; Samuel M. Allen; Robert C. O'Handley

doi:10.1117/12.484343

13 August 2003 Frequency response of single-crystal Ni-Mn-Ga FSMAs

Christopher P. Henry, Pablo G. Tello, David Bono, Julee Hong, Ryan Wagner, Jessica Dai, Samuel M. Allen, Robert C. O'Handley

Author Affiliations +

Proceedings Volume 5053, Smart Structures and Materials 2003: Active Materials: Behavior and Mechanics; (2003) https://doi.org/10.1117/12.484343
Event: Smart Structures and Materials, 2003, San Diego, California, United States

Abstract

Magnetic-field-induced strain in single crystals of Ni-Mn-Ga magnetic shape memory alloys were studied under cyclic field conditions using a compression spring to reset the sample as H→0. Low frequency actuation strain of 2.5% degraded to about 1.5% at an actuation frequency of 500 Hz. Two resonant-like features appear in the ε(f) data, which appear to correspond to a broad test system resonance (100-200Hz) and a sample longitudinal resonance near 350 Hz. The relative phase of field and strain support the assignment of the 350 Hz resonance to the sample.

Citation Download Citation

Christopher P. Henry, Pablo G. Tello, David Bono, Julee Hong, Ryan Wagner, Jessica Dai, Samuel M. Allen, and Robert C. O'Handley "Frequency response of single-crystal Ni-Mn-Ga FSMAs", Proc. SPIE 5053, Smart Structures and Materials 2003: Active Materials: Behavior and Mechanics, (13 August 2003); https://doi.org/10.1117/12.484343

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