| 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. doi: 10.3969/j.issn.0254-7805.2001.01.011 |
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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： | 天津大学力学系,天津,300072;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 分离式扭-拉复合Hopkinson杆装置 铁基形状记忆合金的本构关系 高温实验 |
| 修稿时间： | 1999-03-05 |
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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| THE EFFECT OF TEMPERATURE ON THE CONSTITUTIVE RELATION OF Fe-BASE SHAPE MEMORY ALLOY UNDER TORSION-TENSION COMBINED HIGH STRAIN-RATE[J]. Chinese Journal of Solid Mechanics, 2001, 22(1): 69-74. doi: 10.3969/j.issn.0254-7805.2001.01.011 |
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| Authors: | C.Albertini V.Pizzinato |
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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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