| Numerical Simulation of Mechanical Behaviors of the TiNi Shape Memory Alloy Welded Joints in the Precise Pulse Resistance Butt—Welding |
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| 引用本文： | LijunHAN JunjieZHU LihongHAN. Numerical Simulation of Mechanical Behaviors of the TiNi Shape Memory Alloy Welded Joints in the Precise Pulse Resistance Butt—Welding[J]. 材料科学技术学报, 2003, 19(4): 317-320 |
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| 作者姓名： | LijunHAN JunjieZHU LihongHAN |
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| 作者单位： | [1]FAW-VW,Changchun130011,China [2]DepartmentofMaterialsEngineering,JilinUniversity,Changchun130025,China [3]UniversityofWindsor,Windsor,N9B3P4,Canada |
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| 摘 要： | The hysteresis unit system was introduced to mechanical structure behavior of the TiNi SMA joint based on the structure characteristics of the martensite variants in the joints, and some functions reflecting its inner structure characteristics and micro-behavior such as density function, phase transformation function were set up from micro-points. Finally, the structure behavior relationship and corresponding mathematic model reflecting the relationship among hysteresis strain, stress and phase transformation strain were provided, which could predict the stress-strain behavior of the TiNi SMA joint to large extent.
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| 关 键 词： | TiNi合金 形状记忆合金 钛镍合金 数值模拟 机械性能 结构特征 |
Numerical Simulation of Mechanical Behaviors of the TiNi Shape Memory Alloy Welded Joints in the Precise Pulse Resistance Butt-Welding |
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| Lijun HAN,Junjie ZHU,Lihong HAN. Numerical Simulation of Mechanical Behaviors of the TiNi Shape Memory Alloy Welded Joints in the Precise Pulse Resistance Butt-Welding[J]. Journal of Materials Science & Technology, 2003, 19(4): 317-320 |
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| Authors: | Lijun HAN Junjie ZHU Lihong HAN |
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| Affiliation: | FAW-VW, Changchun 130011, China ... |
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| Abstract: | The hysteresis unit system was introduced to mechanical structure behavior of the TiNi SMA joint based on the structure characteristics of the martensite variants in the joints, and some functions reflecting its inner structure characteristics and micro-behavior such as density function, phase transformation function were set up from micro-points. Finally, the structure behavior relationship and corresponding mathematic model reflecting the relationship among hysteresis strain, stress and phase transformation strain were provided, which could predict the stress-strain behavior of the TiNi SMA joint to large extent. |
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| Keywords: | TiNi shape memory alloy Mechanical behavior Numerical simulation |
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