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Adaptive Elastic SMA Elements for Damping Applications

[+] Author Affiliations
Alexander Czechowicz

Ruhr-University, Bochum, Germany

Peter Dültgen

Research Community for Materials and Tools Research Association, Remscheid, Germany

Sven Langbein

FG-Innovation GmbH, Bochum, Germany

Paper No. SMASIS2013-3052, pp. V001T03A015; 6 pages
doi:10.1115/SMASIS2013-3052
From:
  • ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation
  • Snowbird, Utah, USA, September 16–18, 2013
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-5603-1
  • Copyright © 2013 by ASME

abstract

Shape memory alloys (SMA) are smart materials, which have two technical usable effects: While pseudoplastic SMA have the ability to change into a previously imprinted actual shape through the means of thermal activation, pseudoelastic SMA show a reversible mechanical elongation up to 8% at constant temperature. The transformation between the two possible material phases (austenite and martensite) shows a hysteretic behavior. As a result of these properties, SMA can be used as elastic elements with intrinsic damping function. Additionally the electrical resistance changes remarkably during the material deformation. These effects are presented in the publication in combination with potential for applications in different branches at varying boundary conditions. The focus of the presented research is concentrated on the application of elastic elements with adaptive damping function. As a proof for the potential considerations, an application example sums up this presentation.

Copyright © 2013 by ASME
Topics: Damping

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