Chování skladovaného střeliva za podmínek požáru

Abstract

The diploma thesis deals with the issue of the behaviour of stored ammunition of a holder of a firearm licence during a fire with an assessment of the level of threat to persons and intervening IES units by this thermally initiated ammunition. Literature research was conducted summarizing the existing knowledge across the available sources, taking into account different types of ammunition initiation outside the chamber, including initiation by fire. In the practical part, a methodology for testing its behaviour in case of initiation by temperature outside the chamber was proposed for selected small-bore, pistol and shot ammunition. A high-speed camera was used to record the process. On the basis of the experiments performed, the record was evaluated to describe the behaviour of the heat-initiated ammunition for all tested bullets. A methodology was proposed to approximate the kinetic energy of the initiated cartridge fragments and was used to calculate for the two main fragments of each initiated munition. In order to determine whether the initiation of the cartridge is due to the primer or gunpowder used, samples of 9 mm Luger calibre ammunition were prepared and tested for which the initiation temperature was measured. On the basis of literature search and experiments, the level of threat to persons and intervening IES units by thermally initiated munitions was assessed. From the findings obtained, a small value of the kinetic energy of the fragments and projectiles produced was demonstrated. For this reason, the level of threat of these fragments to the intervening IES units was assessed as very low.