高温SHPB实验温度修正的差分方法

尚兵; 王彤彤; 庄茁

doi:10.11858/gywlxb.2010.03.010

高温SHPB实验温度修正的差分方法

doi: 10.11858/gywlxb.2010.03.010

1.
清华大学航天航空学院，教育部应用力学重点实验室，北京 100084；
2.
黄石理工学院数理学院，湖北黄石 435003

详细信息

通讯作者:
庄茁

计量
- 文章访问数: 7590
- HTML全文浏览量: 390
- PDF下载量: 784
出版历程
- 收稿日期: 2009-03-16
- 修回日期: 2009-08-28
- 发布日期: 2010-06-15

Difference Scheme for Modifying the Experimental Temperature in High-Temperature SHPB Test

1.
School of Aerospace, Tsinghua University, Beijing 100084, China;
2.
School of Mathematics and Physics, Huangshi Institute of Technology, Huangshi 435003, China

More Information

Corresponding author: ZHUANG Zhuo

摘要

摘要: 将波在具有温度梯度的波导杆中运动的控制方程离散，利用差分格式编写程序，根据杆上任意一点的应变信号，计算出当波传到杆上其它任意点处的应变信号。设计实验，验证了该方法的正确性。此方法可应用于高温Hopkinson实验中，即：在波导杆上处于室温的某处粘贴应变片，由该应变片采集的应变信号，计算出试件与波导杆接触处的高温区的应变信号，利用此应变信号即可获得高温Hopkinson实验中试件的应力-应变关系。
- 固体力学 /
- 分离式Hopkinson压杆 /
- 高温 /
- 差分方法 /
- 温度修正
Abstract: The governing equations of the waves transmitting in the waveguide bar with temperature gradient were dispersed using difference scheme, and then the strain information of any point in the bar was calculated through one point's strain information using computer procedure. One experiment was designed to prove this method. This method can be used in high-temperature split Hopkinson press bar (SHPB) experiment: the guide bar contacts the specimen in high-temperature area. The strain information of this area is calculated through the strain information of the room-temperature point, where a stain gauge is glued. Then the high temperature stress-strain curve of the specimen can be obtained through the strain information of the points, which connect the specimen and the waveguide bar.
- solid mechanics /
- SHPB /
- high temperature /
- difference scheme /
- temperature correction

HTML全文

参考文献(12)

Frantz C E, Follansbee P S, Wright W T. Experimental Techniques with the Split Hopkinson Pressure Bar [A]//Proceedings of the 8th International Conference on High Energy Rate Fabrication [C]. Texas, 1984: 229-236.

Xie R Z, Zhang F J, Yan Y X, et al. High-Temperature SHPB Experimental Technique and Its Application [J]. Explosion and Shock Waves, 2005, 25(4): 330-334. (in Chinese)

谢若泽, 张方举, 颜怡霞, 等. 高温SHPB实验技术及其应用 [J]. 爆炸与冲击, 2005, 25(4): 330-334.

Li Y L, Suo T, Guo W G, et al. Determination of Dynamic Behavior of Materials at Elevated Temperatures and High Strain Rates Using Hopkinson Bar [J]. Explosion and Shock Waves, 2005, 25(6): 487-492. (in Chinese)

李玉龙, 索涛, 郭伟国, 等. 确定材料在高温高应变率下动态性能的Hopkinson杆系统 [J]. 爆炸与冲击, 2005, 25(6): 487-492.

Lindholm U S, Yeakley L M. High Strain-Rate Testing: Tension and Compression [J]. Exp Mech, 1968, 8(1): 1-9.

Chiddister J L, Malvern L E. Compression-Impact Testing of Aluminum at Elevated Temperature [J]. Exp Mech, 1963, 3(4): 81-90.

Xia K W, Cheng J Y, Hu S S. Application of SHPB Apparatus to the Measurement of High Temperature Dynamical Mechanical Behavior of Materials [J]. Journal of Experimental Mechanics, 1998, 13(3): 307-313. (in Chinese)

夏开文, 程经毅, 胡时胜. SHPB装置应用于测量高温动态力学性能的研究 [J]. 实验力学, 1998, 13(3): 307-313.

Lu J F, Zhuang Z, Shimamura K, et al. Application of Numerical Simulation to SHPB Test to Investigate the Dynamic Compressive Behavior of Material with Failure [J]. Key Eng Mater, 2003, 243: 433-438.

Zhang Y. Heat Transfer [M]. Nanjing: Southeast University Press, 2004: 302-361. (in Chinese)

张奕. 传热学 [M]. 南京: 东南大学出版社, 2004: 302-361.

施引文献

资源附件(0)

访问统计