[1]黄文,黄中伟.冲击拉伸下多晶纯钛的绝热温升效应[J].深圳大学学报理工版,2010,27(2):127-130.
 HUANG Wen and HUANG Zhong-wei.The adiabatic temperature rise in a poly-crystalline titanium under dynamic tensile load[J].Journal of Shenzhen University Science and Engineering,2010,27(2):127-130.
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冲击拉伸下多晶纯钛的绝热温升效应()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第27卷
期数:
2010年2期
页码:
127-130
栏目:
材料科学
出版日期:
2010-04-30

文章信息/Info

Title:
The adiabatic temperature rise in a poly-crystalline titanium under dynamic tensile load
文章编号:
1000-2618(2010)02-0127-04
作者:
黄文黄中伟
深圳大学土木工程学院,深圳 518060
Author(s):
HUANG Wen and HUANG Zhong-wei
College of Civil Engineering, Shenzhen University, Shenzhen 518060, P.R.China
关键词:
航空材料 应力波 冲击拉伸 动态拉伸复元技术 绝热温升
Keywords:
aeronautical materialtitaniumstress wavedynamic tensiondynamic tensile recovery techniqueadiabatic temperature rise
分类号:
TB 31
文献标志码:
A
摘要:
在冲击拉伸实验装置的入射杆和透射杆上加入余波吸收器,消除反射余波对试件的二次加载,实现冲击条件下的动态拉伸加卸载实验,发展了动态拉伸复元技术,获得了纯钛在动态拉伸条件下的等温应力应变曲线.通过Johnson-Cook模型描述温度的软化效应,对比等温应力应变曲线和绝热曲线,确定纯钛的绝热温升效应.结果表明,动态拉伸条件下耗散功向热量的转化比率约为60%.
Abstract:
Wave absorbers were added to a dynamic tensile apparataus to eliminate the reflected wave in the input and output bars in a dynamic tensile experiment,so that the dynamic load-unload technique was realized.Based on this technique,the dynamic tensile recovery technique was developed,and the dynamic isothermal stress-strain curve of titanium was obtained.Using the John-Cook model to describe the thermal softening effect,the effect of adiabatic temperature rise was characterized by comparing the isothermal stress-strain curve with the adiabatic one. About 60% of plastic work was converted to heat during dynamic plastic deformation.

参考文献/References:

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[1]FENG Ping,CHENG Tao.Investigation on deformation instability of NiTi shape memory alloy under tension[J].Journal of Shenzhen University Science and Engineering,2007,24(4):4418-4423.(in Chinese)
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备注/Memo

备注/Memo:
收稿日期:2010-02-01
基金项目:国家自然科学基金资助项目(10472110);深圳大学重点实验室开放基金资助项目(4CJB)
作者简介:黄文(1976-), 男(汉族),广东省汕头市人,深圳大学讲师、博士.E-mail:whuang@szu.edu.cn
通讯作者:黄中伟(1957-), 男(汉族), 深圳大学教授.E-mail:huangzw@szu.edu.cn
更新日期/Last Update: 2010-05-08