The Explosion Source Damage Effect Evaluation Method

This thesis studies the damage effect of explosion-hazard-source on targets, includingman, building, and so on. Two measurement systems were established to measure theparameter of blast wave as well as transient high temperature in explosion.Firstly, the damage criterion and data, including the damage power of explosionaccidents on different targets, were collected and analyzed. The explosion accidents canbring about shock wave and fireball. The basic formulas for the shock wave and fireballthermal radiation were analyzed.Secondly, a set of pressure measurement system were established. It can measure theparameters of shock wave. By using this measurement system, the data at differentdistances to the center of explosion were obtained, including overpressure, impulse andpositive pressure time. The results were put into the hazard criterion for the damage effectof the shock wave on the building, and the damage degree of the building was obtained.According to the results, the explosive effect to buildings between the high explosivestudied and TNT were compared.Finally, a multi-wavelength transient temperature-measuring system was established.Using the system, the explosion temperature of several high explosives were measured,and the test results show good reproducibility. The measurement system yielded the almostsame temperature for the same explosives and the almost same time in which the lightintensity was high. This indicates that the multi-wavelength transienttemperature-measuring system has a good performance in the instantaneous hightemperature measurement. This measurement system for high transient temperature has alot of advantages. It improves the time resolution and the accuracy.