Journal of Guangxi Normal University(Natural Science Edition) ›› 2014, Vol. 32 ›› Issue (2): 9-13.

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Effect of Nick in Pressure Bar on Measure of Reflected Pressure

YI Chen-hong, HU Mei-e, HU Ba-yi   

  1. Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang Sichuan 621900, China
  • Received:2013-06-30 Online:2014-06-25 Published:2018-09-25

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Abstract: The finite element method was applied to analyze the pressure bar system. The effect of the nick on the pressure bar surface is studied. With numerical simulation the response of different rising front of trapezium impulse and triangle impulse is studied. The investigation indicates that the nick in the pressure bar has great effect on the measure results. And the shorter the impulse rise time is, and the bigger the peak value is. In addition, the nick affects the amplitude of the trapezium impulse more, and also, the vibration frequency of the triangle impulse more. The simulation results have some value for measuring the reflected pressure with experiments.

Key words: reflected pressure, strain, stress wave, pressure bar

CLC Number: 

  • O38
[1] DICK R D, WLLIAMS J D, WANG Xiang-jun, et al. Measurement of pressure from explosives in a closed chamber and the free field [R]. Maryland:Army Research Laboratory, 1996:8-22.
[2] HOPKINSON B.A method of measuring the pressure produced in the detonation of hige explosive or by the impact of bullets[J]. Phil Trans Roy Soc A,1914,213:437-456.
[3] JONES I R. A review of the pressure bar technique for measuringtransicent pressures[R].America:Defense Technical Information Center,1961:1-15.
[4] RAGLAND K W, CULLEN R E. Piezoelectric pressure transducer with acoustic absorbing rod[J]. The Review of Scientific Instruments, 1967,38(6):740-742.
[5] BLACKSTOCK A W, KRATZ H R, FRRNEY M B. Piezoelectric gaugesfor measuring rapidly varying pressures up to seven kilobars[J]. The Review of Scientific Instruments, 1964, 35 (1): 105-110.
[6] EDWARDS D H, DAVIES L , LAWRENCE T R. The application of a piezoelectric bar gauge to shock tube studies[J]. J Sci Instrum, 1964,41(10):609-613.
[7] JONES I R. Beryllium pressure bar having submicrosecond rise time[J]. The Review of Scientific Instruments, 1966,37(8): 1059-1061.
[8] 范良藻,李国彬,李广达.标定激波管的激波前沿构造和毫微秒传感器[J] .力学学报,1986,18(6):558-560.
[9] 胡永乐,林俊德,金飞华,等. 应变式压杆压力传感器在冲击波载荷测试中的应用[J].实验力学,2006,21(5):547-552.
[10] 石培杰,叶湘滨,胡永乐. 压杆应变式传感器在爆炸冲击载荷测试中的应用[J]. 振动与冲击,2007,26(4): 126-139.
[11] 王长利,李焰,张德志,等.容器内爆炸多传感器测试系统的原理设计与应[J].实验力学,2007,22(2):131-136.
[12] 张德志,李焰,钟方平,等.冲击波壁面反射压力的压杆测试法[J].兵工学报,2007,28(10):1256-1260.
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