Local deformation behavior arising in NiTi plate and its influence on macroscopic deformation behavior

Go Murasawa; Kazuhiro Kitamura; Shuichi Miyazaki; Akihiro Nishioka; Ken Miyata; Tomonori Koda

doi:10.1117/12.815666

31 March 2009 Local deformation behavior arising in NiTi plate and its influence on macroscopic deformation behavior

Go Murasawa, Kazuhiro Kitamura, Shuichi Miyazaki, Akihiro Nishioka, Ken Miyata, Tomonori Koda

Proceedings Volume 7289, Behavior and Mechanics of Multifunctional Materials and Composites 2009; 72890M (2009) https://doi.org/10.1117/12.815666
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

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.

Citation Download Citation

Go Murasawa, Kazuhiro Kitamura, Shuichi Miyazaki, Akihiro Nishioka, Ken Miyata, and Tomonori Koda "Local deformation behavior arising in NiTi plate and its influence on macroscopic deformation behavior", Proc. SPIE 7289, Behavior and Mechanics of Multifunctional Materials and Composites 2009, 72890M (31 March 2009); https://doi.org/10.1117/12.815666

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