| 温度对高应变率扭-拉复合加载下形状记忆合金本构关系影响的研究 |
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| 引用本文： | 佟景伟,高丛峰,李鸿琦,王世斌,C.Albertini,V.Pizzinato.温度对高应变率扭-拉复合加载下形状记忆合金本构关系影响的研究[J].固体力学学报,2001,22(1):69-74. |
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| 作者姓名： | 佟景伟 高丛峰 李鸿琦 王世斌 C.Albertini V.Pizzinato |
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| 作者单位： | 1. 天津大学力学系，天津，300072
2. Commission of the European Communities, J.R.C., Ispra Establis hment, Italy |
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| 基金项目： | 国家自然科学基金资助项目(批准号：19372011)． |
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| 摘 要： | 利用分离式扭-拉复合加载Hopkinson杆装置，在20℃和500℃下研究了温度对高应变率扭-拉复合加载下铁基形状记忆合金本构的影响，试验结果表明：该材料在高应变率扭-拉复合加载下的名义剪切屈服强度、剪切强度极限和名义拉伸屈服极限、拉伸强度极限均随温度的升高而降低，拉伸和扭转之间具有相互藕合作用。
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| 关 键 词： | 高应变率 铁基形状记忆合金 本构关系 温度 扭一拉复合加载 |
| 修稿时间： | 1999年3月5日 |
THE EFFECT OF TEMPERATURE ON THE CONSTITUTIVE RELATION OF Fe-BASE SHAPE MEMORY ALLOY UNDER TORSION-TENSION COMBINED HIGH STRAIN-RATE |
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| C.Albertini,V.Pizzinato.THE EFFECT OF TEMPERATURE ON THE CONSTITUTIVE RELATION OF Fe-BASE SHAPE MEMORY ALLOY UNDER TORSION-TENSION COMBINED HIGH STRAIN-RATE[J].Acta Mechnica Solida Sinica,2001,22(1):69-74. |
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| Authors: | CAlbertini VPizzinato |
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| Abstract: | With a split Hopkinson torsion-tension combination bar apparatus,the effect of temperature on the constitutive relations of Fe-base s hape memory alloy under torsion-tension combined high strain-rate is studied a t temperatures 20℃ and 500℃. The experimental results show that 0.2% yield she ar stress, ultimate shear stress and 0.2% yield tensile stress, ultimate tensile stress under torsion-tension combined high strain-rate decrease with increasi ng temperature. It is also found that there is a coupling between tension and to rsion. |
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| Keywords: | high strain rate split Hopkinson torsion tension combination bar apparatus the constitutive relation of Fe base shape memory alloy test at elevated temperature |
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