Advance on Launch Safety for Gun Propellant Charge

Abstract

Abstract: This paper focuses on the advance in study on launch safety for gun propellant charge. That the charge bed near the base of projectile extensively breaks before lighted is the basic reason causing the breach blow. Based on the clues of the compress and fracture of charge near the base of projectile, the evaluating system of launch safety for gun propellant charge is completely expounded. Launch safety test or experiment for gun propellant charge involves ： simulation test of combustion and dynamic environment in gun chamber, the compress and fracture simulating experiment for charge bed and the vivacity testing experiment of charge. This paper demonstrates that the degree of propellant fracture is the standing ground of launch safety criterion. The physics explanation of initial comparative vivacity ratio is discussed, and the program of evaluating launch safety for gun propellant is introduced.

Key words: explosive mechanics , launch safety , gun propellant charge , safety evaluating , fracture , interior bal?listics

CLC Number:

RUI Xiao-ting, YUN Lai-feng, SHA Nan-sheng, CHEN Tao, WANG Hao, LIU Jun. Advance on Launch Safety for Gun Propellant Charge[J]. Acta Armamentarii, 2005, 26(5): 690-696.

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