A Method Of Continuous Measurement For Measuring Velocity Of Detonation And Shock Wave Of PMMA And Water

In recent years,explosives in the blasting,material synthesis,mechanical processing and other aspects of the application more and more widely.In the material synthesis and machining,in order to better play the material properties,to achieve the purpose of processing,we need to accurately understand the relevant detonation parameters of the material.And now detonation parameters known material is very limited,far from meeting the actual requirements.In view of this situation,this paper expects to develop a reliable and accurate method for measuring detonation parameters of any material.In this paper,based on the existing detonation wave and shock wave continuous measurement probe,through the improvement of the method(improved shielding method,change the core components,the choice of plexiglass and water as the medium),the success of large diameter explosives((37)=100mm)In the detonation wave and the medium of the shock wave for continuous measurement,get real and effective data.And then from the US military standard LASL shock Hugoniot data and detonation wave C-J model,the law of conservation derived explosive pressure and the two medium shock wave pressure formula;the original signal processing into the explosives and media related parameters such as detonation speed,Burst pressure,shock wave initial pressure and medium shock wave after the particle speed.Through the HandTrap and high-frequency oscilloscope,the two different sampling rate of different instruments were measured,have been real and effective data.The theoretical results are in good agreement with the experimental results of explosives explosion and plexiglass and water shock waves,which indicates that the test method is accurate and effective and can well calculate the detonation parameters of the measured medium.