入射波整形技术的实验和理论研究

赵习金; 卢芳云; 王悟; 李英华; 林玉亮

doi:10.11858/gywlxb.2004.03.007

入射波整形技术的实验和理论研究

doi: 10.11858/gywlxb.2004.03.007

赵习金^1,2,3,,
卢芳云^1,2,
王悟¹,
李英华¹,
林玉亮²

1.
中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室，四川绵阳 621900；
2.
国防科技大学理学院，湖南长沙 410073；
3.
解放军汽车管理学院，安徽蚌埠 233011

详细信息

通讯作者:
赵习金

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出版历程
- 收稿日期: 2003-08-22
- 修回日期: 2004-01-12
- 发布日期: 2004-09-05

The Experimental and Theoretical Study on the Incident Pulse Shaping Technique

1.
Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China;
2.
College of Science, National University of Defense Technology, Changsha 410073, China;
3.
Automobile Management Institute, Bengbu 233011, China

More Information

Corresponding author: ZHAO Xi-Jin

摘要

摘要: 在硅橡胶材料的分离式霍普金森压杆实验中，实验研究了如何实现常应变率加载，并且得到了整形器尺寸与加载应变率之间，以及加载应变率与试样厚度之间的定量关系。根据预估入射波形的理论模型，给出了采用H62黄铜整形器整形后入射波形的计算结果和实验结果，二者基本上是一致的。
- 入射波 /
- 整形技术 /
- 分离式霍普金森压杆 /
- 常应变率
Abstract: We modified the conventional Split Hopkinson Pressure Bar (SHPB) technique by shaping the incident pulse such that the samples are in dynamic stress equilibrium and in homogeneous deformation during the tests of silicon rubber. According to the method of pulse shaper designing, we had the samples loaded under constant strain rate, and we got the direct relation between the size of pulse shaper and strain rate. A model to predict the incident waveform in the SHPB experiment by use of a single pulse shaper is built according to the theory of stress wave. Incident waveform from experiment and model prediction with H62 brass shaper are obtained. Model predictions are in good agreement with experimental results.
- incident waveform /
- pulse shaping technique /
- Split Hopkinson Pressure Bar /
- constant strain rate

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参考文献(9)

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赵习金. 分离式霍普金森压杆实验技术的改进和应用 [D]. 长沙: 国防科技大学, 2003.

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