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Proceedings Paper

Passive damping of thin film Nitinol
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Paper Abstract

Thin film Nitinol is evaluated for a new damping solution to microscale damping. In this study, thin film Nitinol was mechanically tested under steady and cyclic tensile loads in a DMA Q800 load frame to determine stiffness and hysteric losses (tan δ = 0.17). A method of determining the damping properties of a multilayered laminate was derived and evaluated using measured and predicted values of Nitinol film damping. Hysteretic loss of tan δ = 0.76 was predicted for a tensile/compressive loading of a film indicative of loading in a MEMS structure. Damping in a silicon/Nitinol laminate using the tensile/compressive loading film damping prediction was calculated to be tan δ = 0.127.

Paper Details

Date Published: 17 March 2006
PDF: 10 pages
Proc. SPIE 6169, Smart Structures and Materials 2006: Damping and Isolation, 61690M (17 March 2006); doi: 10.1117/12.658824
Show Author Affiliations
Catherine A. Kerrigan, Univ. of California/Los Angeles (United States)
K. P. Mohachandra, Univ. of California/Los Angeles (United States)
Gregory P. Carman, Univ. of California/Los Angeles (United States)

Published in SPIE Proceedings Vol. 6169:
Smart Structures and Materials 2006: Damping and Isolation
William W. Clark; Mehdi Ahmadian; Arnold Lumsdaine, Editor(s)

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