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Proceedings Paper

Local deformation behavior arising in NiTi plate and its influence on macroscopic deformation behavior
Author(s): Go Murasawa; Kazuhiro Kitamura; Shuichi Miyazaki; Akihiro Nishioka; Ken Miyata; Tomonori Koda
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Paper Abstract

The aim of present study is to investigate the local strain band behavior and the influence of it on macroscopic deformation behavior, of NiTi plates under mechanical loading. Firstly, we evaluate the transformation temperature by Differential Scanning Calorimetry (DSC) and investigate the initial phase for two NiTi thin plates with different texture. Next, we investigate the texture by X-ray diffraction method. Then, we measure local strain distribution arising in NiTi thin plates under uniaxial tensile loading, by using in-house measurement system on the basis of digital image correlation. Finally, we discuss about the "Mechanism of angle, nucleation and propagation for local strain band" and "Relationship between macroscopic stress-strain curve and local strain band behavior" on the basis of results in present study.

Paper Details

Date Published: 31 March 2009
PDF: 13 pages
Proc. SPIE 7289, Behavior and Mechanics of Multifunctional Materials and Composites 2009, 72890M (31 March 2009); doi: 10.1117/12.815666
Show Author Affiliations
Go Murasawa, Yamagata Univ. (Japan)
Kazuhiro Kitamura, Nagano National College of Technology (Japan)
Shuichi Miyazaki, Univ. of Tsukuba (Japan)
Akihiro Nishioka, Yamagata Univ. (Japan)
Ken Miyata, Yamagata Univ. (Japan)
Tomonori Koda, Yamagata Univ. (Japan)


Published in SPIE Proceedings Vol. 7289:
Behavior and Mechanics of Multifunctional Materials and Composites 2009
Zoubeida Ounaies; Jiangyu Li, Editor(s)

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