高温SHPB实验技术及其应用

谢若泽; 张方举; 颜怡霞; 田常津; 李玉龙; 陈裕泽; 李思忠; 陶俊林

doi:10.11883/1001-1455(2005)04-0330-05

高温SHPB实验技术及其应用

doi: 10.11883/1001-1455(2005)04-0330-05

1.
中国工程物理研究院结构力学研究所，四川绵阳 621900；
2.
西北工业大学飞机系，陕西西安 710072

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出版历程
- 刊出日期: 2005-07-25

High-temperature SHPB experimental technique and its application

1.
Institute of Structural Mechanics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China;
2.
Department of Aircraft Engineering, Northwestern Polytechnical University, Xi’an 100085, Shaanxi, China

摘要

摘要: 介绍了高温分离式Hopkinson压杆(SHPB)实验方法，建立了一套高温SHPB实验系统，利用该系统研究了温度对某种抗氢钢动态压缩力学性能的影响，实验温度最高达到1000 ℃，应变率为500～1000 s-1。仅对试件进行加温，并利用一套气动装置在加载前快速完成系统的组装，以尽量减小试件中温度分布的不均匀性。研究结果表明：该气动装置可以将加载前杆端与试件的完全接触时间控制在500 ms内；该抗氢钢的温度软化效应很明显，且温度敏感性随温度升高而下降。
- 固体力学 /
- 高温SHPB系统 /
- 动态压缩 /
- 抗氢钢 /
- 力学性能
Abstract: An experimental system of high-temperature split Hopkinson pressure bar (SHPB) was developed, and the dynamic properties of one type of antihydrogen steel at temperatures from room temperature to 1 000 ℃ and at strain rates from 500 to 1 000 s1 were studied using this system. The experimental system and the heated specimen were assembled rapidly by using a pneumatic mounting system to minimize the development of temperature gradients in the specimen. The experimental results show that the contact time is shorter than 500 ms. The softening effect of the antihydrogen steel due to heating is large, and the temperature sensitivity decreases quickly with the specimen temperature increasing.
- solid mechanics /
- high-temperature SHPB system /
- dynamic compression /
- antihydrogen steel /
- mechanical property

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文章访问数: 2415
HTML全文浏览量: 104
PDF下载量: 272
被引次数: 0

高温SHPB实验技术及其应用

doi: 10.11883/1001-1455(2005)04-0330-05

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出版历程

High-temperature SHPB experimental technique and its application

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出版历程

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