The parameterisation the cavity formation in substitute materials for normalised and special military ammunition
Abstrakt
The issues of gunshot injuries and their consequences are at the forefront of the interest of a wide spectrum of various fields of science - medical and technological. Our study sets the goal of giving precision and accuracy to the description of bullet behavior in the human organism.
Among parameters crucial for the assessment of the effect of a gunshot is not only the shape of the bullet path after the stabilization of the whole process, but also during the penetration of the material by the bullet. The bullet path with its permanent cavity defined by its shape, proportion and orientation within tissue is unique for every penetrating gunshot.
Tissue damage provokes a wide range of reactions in the affected organism. The main nature of biological material is its reactibility through innervation.
Methods: Experimental shooting uses 20% gelatine blocks kept at the temperature of 4oC and glycerine soap. The size of blocks used in our experiment is 20x20x35 cm.
Weapon systems used to shoot through the substitutive material were of 9 mm calibre for a pistol cartridge. Impact velocity was determined using optical light gates (LS-04 Intelligent Light Gates).
Exiting velocity of bullets was measured with a radar (DRS-1 Doppler Radar System). Parameterization of shape transformations within the test blocks was done methods of computed tomography (CT) and magnetic resonance imaging (MRI).
Experimental data was acquired using computer software CURVE EXPERT DATA.