Vibration damping in Ni-Mn-Ga composites

Jorge Feuchtwanger; Kelli Griffin; Jian Kang Huang; Robert C. O'Handley; Samuel M. Allen; David Bono

doi:10.1117/12.483795

31 July 2003 Vibration damping in Ni-Mn-Ga composites

Jorge Feuchtwanger, Kelli Griffin, Jian Kang Huang, Robert C. O'Handley, Samuel M. Allen, David Bono

Proceedings Volume 5052, Smart Structures and Materials 2003: Damping and Isolation; (2003) https://doi.org/10.1117/12.483795
Event: Smart Structures and Materials, 2003, San Diego, California, United States

Abstract

Ferromagentic shape memory alloy composites exhibit good qualities as vibration absorbers. Loss ratios in excess of 25% have been measured in polymer samples containing 20 vol% Ni-Mn-Ga. The ability to dissipate large amounts of energy is due to the same mechanism that is also responsible for the large strains observed in single crystals used as actuators, namely twin-boundary motion. The loss ratios of the FSMA-loaded composites are compared to those for pure polymer samples and polymer loaded with inert filler. The effects of the pre-processing of the filler material on its performance are also shown.

Citation Download Citation

Jorge Feuchtwanger, Kelli Griffin, Jian Kang Huang, Robert C. O'Handley, Samuel M. Allen, and David Bono "Vibration damping in Ni-Mn-Ga composites", Proc. SPIE 5052, Smart Structures and Materials 2003: Damping and Isolation, (31 July 2003); https://doi.org/10.1117/12.483795

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