TY - JOUR PY - 2017// TI - Computational approach to identify different injuries by firearms JO - Journal of forensic sciences A1 - Costa, Sarah Teixeira A1 - Freire, Alexandre Rodrigues A1 - Matoso, Rodrigo Ivo A1 - Daruge Junior, Eduardo A1 - Rossi, Ana Claudia A1 - Prado, Felippe Bevilacqua SP - 361 EP - 368 VL - 62 IS - 2 N2 - Complications arise in the analysis of gunshot wounds to the maxillofacial region, when neither the projectile nor the gun is found at the crime scene. We simulated 5- and 15-cm firing distances at a human mandible to investigate the external morphology of entrance wounds based on fire range. The ammunition models,.40-caliber S&W,.380-caliber, and 9 × 19-mm Luger, were constructed with free-form NURBS surfaces. In a dynamic simulation, projectiles were fired against mandibular body 3D model at 5 and 15 cm. All entrance wounds presented oval aspect. Maximum diameter and von Mises stress values were 16.5 mm and 50.8 MPa, both for.40-caliber S&W fired at 5 cm. The maximum energy loss was 138.4 J for.40 S&W fired at 15 cm. In conclusion, the mandible was most affected by.40-caliber S&W and morphological differences were observable in holes caused by different incoming projectile calibers fired at different distances.

© 2017 American Academy of Forensic Sciences.

Language: en

LA - en SN - 0022-1198 UR - http://dx.doi.org/10.1111/1556-4029.13387 ID - ref1 ER -