| 基于实验的TiNi合金塑性本构关系和数值模拟 |
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| 引用本文： | 邓世春,李永池,胡秀章,李建阳,高光发. 基于实验的TiNi合金塑性本构关系和数值模拟[J]. 南京理工大学学报(自然科学版), 2010, 34(1) |
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| 作者姓名： | 邓世春 李永池 胡秀章 李建阳 高光发 |
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| 作者单位： | 中国科技大学,近代力学系,安徽,合肥,230027 |
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| 基金项目： | 国家自然科学基金重点项目(10632080);;国家自然科学基金面上项目(10272097) |
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| 摘 要： | 针对TiNi合金准静态拉伸中的特殊现象,以万能材料试验机(MTS)上所获得的实验数据为基础,结合弹塑性理论,把一种形状记忆合金的本构关系从一维推广到了三维。同时为ABAQUS数值模拟编写了用户子程序UMAT,模拟中观察到了TiNi合金的异常断裂行为,和实验现象保持了良好的一致性,这为形状记忆合金的实验设计提供了理论参考。
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| 关 键 词： | TiNi合金 形状记忆合金 万能材料试验机 弹塑性本构关系 三维 ABAQUS 数值模拟 |
Plastic Constitutive Relations and Numerical Simulation of TiNi Alloy Based on Experiments |
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| DENG Shi-chun,LI Yong-chi,HU Xiu-zhang,LI Jian-yang,GAO Guang-fa. Plastic Constitutive Relations and Numerical Simulation of TiNi Alloy Based on Experiments[J]. Journal of Nanjing University of Science and Technology(Nature Science), 2010, 34(1) |
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| Authors: | DENG Shi-chun LI Yong-chi HU Xiu-zhang LI Jian-yang GAO Guang-fa |
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| Affiliation: | Department of Modern Mechanics/a>;University of Science and Technology of China/a>;Hefei 230027/a>;China |
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| Abstract: | For the particular phenomenon in the quasi-static stretching of TiNi alloy,a one-dimensional constitutive relation of shape memory alloy(SMA) is extended to three dimension based on experiments and elastoplastic theory.Quasi-static experiments are conducted on a hydraulically driven load frame(Material test system,MTS).A user defined material subroutine(UMAT) is developed for ABAQUS application.Simulations for the abnormal fracture behavior of TiNi alloy are conducted and the results show a good accordance ... |
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| Keywords: | TiNi alloy shape memory alloy material test system elastoplastic constitutive relation three dimension ABAQUS numerical simulation |
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