Znaczenie układu perforacji na płycie poliwęglanowej po uderzeniu pociskiem 9 × 19 mm w badaniach kryminalistycznych
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RIS BIB ENDNOTEForensic significance of perforation pattern in polycarbonate sheet against 9 × 19 mm projectile
Data publikacji: 11.09.2023
Problems of Forensic Sciences (Z Zagadnień Nauk Sądowych), 2023, 133, s. 39-56
https://doi.org/10.4467/12307483PFS.23.005.17815Autorzy
Forensic significance of perforation pattern in polycarbonate sheet against 9 × 19 mm projectile
Polycarbonate is widely used as structural material due to its extreme resistance to impact and perforation. In a crime involving firearms, the bullet may impact various objects fitted with or made of polycarbonate sheets leaving high chances of discovering the fractured PC sheets and fragments at the scene of crime; hence, these objects may become objects of the criminal investigation. In the present work the perforation pattern of PC sheets of thicknesses 8 mm, 10 mm, 12 mm and 15 mm at firing ranges 5 m and 10 m when impacted against 9 ×19 mm full metal jacket (FMJ) bullet were examined. It was observed that after impact, the PC sheet develops entry hole smaller than the calibre of bullet; formation of crack zone, plastic zone; and petalling on the distal face was observed. It was found that as the thickness of the sheet increases, the diameter of the entry hole increases, the diameter of the exit hole initially increases and then becomes constant. At 5 m range of fire the trend of crack zone becomes nearly constant from 8 mm to 15 mm thickness, however, at 10 m range of fire crack zone increases from 8 mm to 15 mm thickness. Furthermore, the diameter of the plastic zone increases as the thickness of the sheet increases (from 8 mm to 15 mm, respectively).
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Informacje: Problems of Forensic Sciences (Z Zagadnień Nauk Sądowych), 2023, 133, s. 39-56
Typ artykułu: Oryginalny artykuł naukowy
Tytuły:
Forensic significance of perforation pattern in polycarbonate sheet against 9 × 19 mm projectile
Department of Forensic Science, Vivekananda Global University, Jaipur, Rajasthan, Indie
Publikacja: 11.09.2023
Otrzymano: 23.01.2023
Zaakceptowano: 15.05.2023
Status artykułu: Otwarte
Licencja: CC BY-NC-ND
Udział procentowy autorów:
Korekty artykułu:
-Języki publikacji:
Angielski, PolskiLiczba wyświetleń: 621
Liczba pobrań: 382
Sugerowane cytowania: Vancouver