Comparison of the experimental behavior of a shape memory alloy in compression and tension

Hesse, T ; Sharif University of Technology | 2003

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  1. Type of Document: Article
  2. DOI: 10.1115/IMECE2003-43786
  3. Publisher: American Society of Mechanical Engineers (ASME) , 2003
  4. Abstract:
  5. The concept of Shape Memory Alloy (SMA) has been a subject of extensive research in the recent few years. In many SMA applications, wire elements have been used in order to control structural specifications like shape and stiffness. Since a wire can only be subjected to tensile forces, the available theoretical models for SMA discuss only the tensile loading. The present paper is an endeavor to overcome this shortcoming. It gives experimental results for tension and compression tests on specimens (having different geometries) made of an identical shape memory alloy. The corresponding results are compared with each other. Using stress-strain diagrams, several important material properties are obtained. These parameters can then be implemented in SMA models in order to analyze and predict the mechanical behavior of SMA elements subjected to compression
  6. Keywords:
  7. Annealing ; Tensile testing ; Stress analysis ; Strain ; Specific heat ; Sampling ; Phase transitions ; Parameter estimation ; Martensite ; Hysteresis ; Elastic moduli ; Deformation
  8. Source: 2003 ASME International Mechanical Engineering Congress, Washington, DC., 15 November 2003 through 21 November 2003 ; Volume 68 , 2003 , Pages 471-478 ; 07334230 (ISSN)
  9. URL: https://appliedmechanics.asmedigitalcollection.asme.org/IMECE/proceedings-abstract/IMECE2003/37076/471/297868