Experimental methodology for TiNi shape memory alloy testing under complex stress state

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Authors

  • B. Raniecki Institute of Fundamental Technological Research, Polish Academy of Sciences, Poland
  • L. Dietrich Institute of Fundamental Technological Research, Polish Academy of Sciences, Poland
  • Z.L. Kowalewski Institute of Fundamental Technological Research, Polish Academy of Sciences, Poland
  • G. Socha Institute of Fundamental Technological Research, Polish Academy of Sciences, Poland
  • S. Miyazaki Institute of Material Science, University of Tsukuba, Japan
  • K. Tanaka Department of Aerospace Engineering, Tokyo Metropolitan Institute of Technology, Japan
  • A. Ziółkowski Institute of Fundamental Technological Research, Polish Academy of Sciences, Poland

Abstract

The experimental method and preliminary results of multiaxial proportional loadings at a range of different temperatures are discussed for the TiNi shape memory alloy. The results are limited to the R-phase reorientation and transformation pseudoelasticity of the material tested at the selected constant temperatures. The main objective of the paper is to develop experimental knowledge of the shape memory alloy properties under complex stress states which would allow better understanding of the material behaviour and create a basis for theoretical modelling.

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