组合式隔热陶瓷短杆高温SHPB实验技术

肖大武; 李英雷; 胡时胜

doi:10.11858/gywlxb.2010.01.007

组合式隔热陶瓷短杆高温SHPB实验技术

doi: 10.11858/gywlxb.2010.01.007

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国防科技重点实验室，四川绵阳 621900；
2.
中国科学技术大学，中国科学院材料力学行为和设计重点实验室，安徽合肥 230027

详细信息

通讯作者:
肖大武

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出版历程
- 收稿日期: 2009-02-10
- 修回日期: 2009-05-26
- 刊出日期: 2010-02-15

High Temperature SHPB System with Heat Insulation for Short Ceramic Bars

1.
National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China;
2.
Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, China

More Information

Corresponding author: XIAO Da-Wu

摘要

摘要: 讨论和分析了当前高温分离式霍普金森压杆（SHPB）实验技术，为了获得材料在高温下可靠的动态力学性能，建立了一套在压杆和试件之间添加隔热陶瓷短杆的高温SHPB实验系统。相比于传统接触式高温SHPB方案，该系统可以使用在更高的冲击载荷和温度下，与机械对杆方案相比，实验装置及其控制要简便许多。结合有限元模拟，对陶瓷短杆及温度场对压杆中应力波传播的影响进行了相应的评估，并利用这套实验系统得到了800 ℃下HR2抗氢钢的动态压缩应力-应变曲线。
- 陶瓷短杆 /
- 高温 /
- 分离式霍普金森压杆（SHPB） /
- 抗氢钢
Abstract: To obtain dynamic behavior of materials at very high temperature, a new experimental system of high temperature split Hopkinson pressure bar (SHPB) is investigated. The steel bars in the inside section of the furnace are replaced with relatively close acoustic impedance matched short ceramic bars. Compared to the traditional high temperature SHPB system, this system can be used under higher loading and higher experimental temperatures, and it is more convenient than the auto-assembling high temperature SHPB system. In addition, the effect of impedance mismatch is investigated by numerical simulation, which proves veracity of the results. The dynamic compressive properties of anti-hydrogen steel at high temperature up to 800 ℃ are tested by this system. Results show that the flow stress of material decreases with the increase of the temperature.
- short ceramic bars /
- high temperature /
- split Hopkinson pressure bar (SHPB) /
- anti-hydrogen steel

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参考文献(17)

Zukas J A, Nicholas T, Swift H F, et al. Impact Dynamics [M]. Malabar, Florida: Krieger Publishing Company, 1992.

Meyers M A. Dynamic Behavior of Materials [M]. New York: John Wiley Sons, 1994.

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

Xia K W, Cheng J Y, Hu S S. Application of SHPB Apparatus to the Measurement of High Temperature Dynamic 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.

Xia K W, Liu W Y, Tang Z P. Experimental Study of Dynamic Properties of 30CrMnSiA Steel at High Temperature [J]. Explosion and Shock Waves, 1998, 18(4): 310-316. (in Chinese)

夏开文, 刘文彦, 唐志平. 30CrMnSiA的高温动态力学性质的实验研究 [J]. 爆炸与冲击, 1998, 18(4): 310-316.

Zhang F J, Xie R Z. Auto-Assembling Technique Used in High Temperature Experiment of SHPB [J]. Journal of Experimental Mechanics, 2005, 20(2): 281-284. (in Chinese)

张方举, 谢若泽. SHPB系统高温实验自动组装技术 [J]. 实验力学, 2005, 20(2): 281-284.

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.

Nemat-Nasser S, Isaacs J B. Direct Measurement of Isothermal Flow Stress of Metals at Elevated Temperatures and High Strain Rates with Application to Ta and Ta-W Alloys [J]. Acta Mater, 1997, 45(3): 907-919.

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的Hopkinson杆系统 [J]. 爆炸与冲击, 2005, 25(6): 487-492.

Lankford J. Temperature Strain Rate Dependence of Compressive Strength and Damage Mechanisims in Aluminium Oxide [J]. J Mater Sci, 1981, 16(6): 1567-1578.

Bass J D, Svendsen B, Ahrens T J. The Temperatures of Shock Compressed Iron [A]//Manghnani M H, Syono Y. High Pressure Research in Mineral Physics [C]. Washingtong D C: Geophys Union, 1987: 393-402.

Wachtman J B, Lam D G. Young's Modulus of Various Refractory Materials as a Function Temperature [J]. J Amer Ceram Soc, 1959, 42: 254-260.

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