THE APPLICATION OF BIOLOGICAL TISSUE SIMULATOR TO DIAGNOSE PERFORATING GUNSHOT WOUNDS CAUSED BY 5.45 mm CALIBER BULLETS

Abstract

The study and diagnosis of perforating gunshot wounds, especially those that are caused by 5.45 mm caliber bullets are connected with certain difficulties due to the instable behavior of these bullets in biological tissues (viscoelastic environment). With regard to that and based on the natural tests with the help of ballistic plasticine, the article establishes the peculiarities of perforating gunshot injuries caused by the abovementioned bullets. The natural tests also allowed to determine the influence of the changes made in the bullet structure in order to increase its expansion properties. In addition, the experiments determined the amount of kinetic energy of 5.45 mm bullets in order to perforate a block of ballistic plasticine of the respective width, it allowed to determine the resistance coefficient of the viscoelastic environment with regard to the unstable behavior of the bullet inside the obstacle. The article suggests a method to determine the speed of the bullet after it leaves the obstacle in the form of a simulator of biological tissues, it allows to determine the ballistic properties of 5.45 mm bullets before and after its contact with the obstacle.