We present an approach to predict the explosion load for aluminized explosives using a numerical calculation. A code to cal- culate the species of detonation products of high energy ingredients and those of the second...We present an approach to predict the explosion load for aluminized explosives using a numerical calculation. A code to cal- culate the species of detonation products of high energy ingredients and those of the secondary reaction of aluminum and the detonation products, velocity of detonation, pressure, temperature and JWL parameters of aluminized explosives has been de- veloped in this study. Through numerical calculations carried out with this code, the predicted JWL parameters for aluminized explosives have been compared with those measured by the cylinder test. The predicted JWL parameters with this code agree with those measured by the cylinder test. Furthermore, the load of explosion for the aluminized explosive was calculated using the numerical simulation by using the JWL equation of state. The loads of explosion for the aluminized explosive obtained using the predicted JWL parameters have been compared with those using the measured JWL parameters. Both of them are almost the same. The numerical results using the predicted JWL parameters show that the explosion air shock wave is the strongest when the mass fraction of aluminum rmwder in the exnlosive mixtures is ~f）%. This result n^rees with the e^mniricnl darn展开更多
基金supported by the National Natural Science Foundation of China (Grant No. 11072035)the Foundation for Doctoral Dissertation of China (Grant No. 20111101110008)
文摘We present an approach to predict the explosion load for aluminized explosives using a numerical calculation. A code to cal- culate the species of detonation products of high energy ingredients and those of the secondary reaction of aluminum and the detonation products, velocity of detonation, pressure, temperature and JWL parameters of aluminized explosives has been de- veloped in this study. Through numerical calculations carried out with this code, the predicted JWL parameters for aluminized explosives have been compared with those measured by the cylinder test. The predicted JWL parameters with this code agree with those measured by the cylinder test. Furthermore, the load of explosion for the aluminized explosive was calculated using the numerical simulation by using the JWL equation of state. The loads of explosion for the aluminized explosive obtained using the predicted JWL parameters have been compared with those using the measured JWL parameters. Both of them are almost the same. The numerical results using the predicted JWL parameters show that the explosion air shock wave is the strongest when the mass fraction of aluminum rmwder in the exnlosive mixtures is ~f）%. This result n^rees with the e^mniricnl darn
