PREISACHモデルのマルテンサイト形状記憶合金の引張・圧縮非対称変形挙動への応用
| Autor: | Tadashige Ikeda, Masashi Akita, Tetsuhiko Ueda |
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| Rok vydání: | 2006 |
| Předmět: |
Numerical Analysis
Materials science Tension (physics) business.industry Hysteresis Mechanical Engineering Constitutive equation Modeling Shape-memory alloy Mechanics Structural engineering Reorientation Compression (physics) Condensed Matter::Materials Science Tension-Compression Asymmetry Compressive strength Mechanics of Materials Residual stress Martensite Shape Memory Alloy Constitutive Equation General Materials Science Deformation (engineering) business |
| Zdroj: | TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A. 72:1340-1347 |
| ISSN: | 1884-8338 0387-5008 |
| Popis: | The Preisach model is applied to the hysteresis of the energy required for reorientation of martensitic variants of shape memory alloys. To express tension-compression asymmetric behavior, three variants of the martensitic phase are considered—thermal-induced, tensile-stress-induced, and compressive- stress-induced martensitic phases. Residual stresses due to unconformity at interfaces between grains are also considered in the required energy. Stress-strain hysteresis loops for a bar under tension-compression cyclic loading are simulated and they are compared with the available measured data. Results show that this model can effectively capture the asymmetric stress-strain deformation behavior for tension and compression and the difference between the stress-strain relationships in the first and second loops. This indicates that the proposed model can be used for explaining the deformation behavior of shape memory alloys and for the design of structural elements containing shape memory alloys. |
| Databáze: | OpenAIRE |
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