Article details

Title: Experimental Study on the Shock Waves Characteristics Generated by 9 mm Caliber Armament System
Author(s): Marius Cîrmaci   Ioan Ion   Traian Rotariu   Doru-Adrian Goga      

Abstract: The goal of this article is to present experimental procedures and their results for the shock waves generated when firing small caliber ammunition, like 9×19 Parabellum cartridge, and to prove that the Military Technical Academy has the facility (LTECAM) to develop, experiment and obtain valid data in this field. The knowledge of the shock waves characteristics is important because they can cause damage to items near the blast like hearing loss of the gunner or loss of firing precision. The new procedure is designed to measure the pressure evolution in the weapon barrel, the pressure peak of the shock waves and the spatial distribution influence on the shock wave characteristics. The shock waves characteristics at muzzle are related to ammunition ballistic characteristics, geometric and functional weapon’s characteristics and spatial distribution of the measuring points. The experimental results reveal an analogy with the shock wave generated by detonation of an explosive material. Even for 9×19 mm ammunition, the peak pressure has important values near the barrel muzzle and is not symmetrical with respect to the muzzle. The pressure measurements are related to a polar coordinate system linked to the firearm.

Keywords: shock wave, ballistic characteristics of ammunition, safety.

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