Handgun With A The Software Body Armor Torso Target Bludgeoning Role Modeling And Simulation Studies

The staff is mainly threaten by the bullet wound in the war and antiterror conflict, and the use of body armor can effectively reduced penetration injury caused by bullets. Although the pistol bullet can be blocked off from penetrating human tissue, part of the energy still can be delivered to the body through body armor, causing chest and abdomen target organ damaged, and the phenomenon was known as "behind armor blunt trauma" (Behind Armor Blunt Trauma. BABT). Blunt trauma can be processed simulation experiments and research by using human torso target with body armor.In this paper, to develop a finite element model of bullet pistol, body armor and human torso, finite element model of bullet pistol use hexahedral mesh, given the elastic-plastic material model. Finite element model of body armor use shell element lamination, given the damage of the composite material model. Finite element model of human torso include skin and muscle, mediastinum, sternum, cartilage, ribs, spine, heart, lungs, liver and stomach is three-dimensional CT scan from the start to establish a standardized human torso, using tetrahedral mesh, and the skin and muscle, mediastinum, organ given visco-elastic material models, skeleton given the linear elastic material model.The numerical simulation of the fracture pattern of the soft body armor under ballistic impact of bullet pistol, the simulated results showed similar fracture pattern to that of experimental tests, as well as an excellent bullet-proof capability of ultra high molecular weight polyethylene fiber material. It is validated that the finite element model and numerical simulation method for soft body armor provided by this study is available for the evaluation of body armor capability and the prediction of fracture pattern of composite material under ballistic impact.This paper conducted the numerical simulation of blunt function of the pistol bullet to the human torso target with soft body armor, numerical simulation and experimental results were compared by analysis proving the rationality of the computed result, get equivalent field and pressure field evolvement low of the body armor, skin and muscle, skeleton and organs, processing data analysis with every measurement position, to reveal instantaneous function process and dynamic response characteristics of the bullet pistol on the human torso target. In this paper, the model can be used as the theoretical model of blunt trauma, with protection performance and blunt trauma for the analysis and evaluation.