Scientific Visualization, 2018, volume 10, number 2, pages 15 - 28, DOI: 10.26583/sv.10.2.02
Specific fractures of the diaphysis of the femur formed by a traumatic multicomponent bullet shot charge from a smoothbore carbine "Saiga 12k" at a distance in focus, visualization and theoretical study of the fragment formation mechanism about them
Author: P.V. Pinchuk1, K.N. Krupin2, V.V. Petrov3, S.V. Leonov4
1 111 main state center of medicolegal and criminalistic examinations; department of forensic medicine Pirogov Russian National Research Medical University of the Russian Ministry of Health
ORCID: 0000-0002-0223-2433, pinchuk1967@mail.ru
2 Department of pathology and morphology (the head of the department – associate professor A.A. Supilnikov) Private educational of higher education "Medical university "REAVIZ"
ORCID: 0000-0001-6999-8524, konst.inn@gmail.com
3 Bureau of forensic medical examination of the Tomsk region
ORCID: 0000-0001-5889-1406, smailsme@yandex.ru
4 Department of forensic medicine and the medical right (the head of the department – the prof. P. O. Romodanovsky) A. I. Yevdokimov Moscow state university of medicine and Dentistry of the Russian Ministry of Health
ORCID: 0000-0003-04228-8973, sleonoff@inbox.ru
Abstract
When studying fire fractures of femurs at a shot in an emphasis the traumatic bullet charge from a smooth-bore carbine "the Saiga 12k" us has received false fragment which basis settles down on the party opposite to the place of influence. A research objective was establishment distribution of the power tension arising when forming changes of a femurs diaphysis caused by a shot from a distance in an emphasis a traumatic bullet charge from a smooth-bore carbine "Saiga 12k" and method of mathematical modeling to establish justification of the false fragment formation mechanism. The method of final elements has made modeling of process of destruction through ANSYS. At a comparative research of false fragment breaks and mathematical models of the intense deformed state full similarity of an arrangement of the division lines forming false fragment to lines of the maximum tension in bone model at mathematical modelling of the intense deformed state at high-speed loading is revealed by a blunt object with the limited spherical contacting surface perpendicular to the surface of a bone in her average third. Formation of femur false fragment on the party opposite to a shot, is explained by set of factors which are: big energy of an influence impulse, the special distribution of power tension causing shift on border of a plastic deformation zone on a diaphysis surface opposite to influence.
Keywords: firearms, a fractured femur, false fragment, mathematical modeling, traumatic, and multi-charge 12-gauge, shot at point blank range.
