摘要
建立了手枪弹钝击软体防弹衣和人体胸骨有限元计算模型,给出了软体防弹衣和人体胸骨的密质骨、松质骨和骨髓的材料模型,并对手枪弹钝击软体防弹衣的人体胸骨冲击响应进行了数值模拟计算,获得了细化后胸骨的动态响应情况,揭示了枪弹钝击防弹衣后人体胸骨动力响应特性和人体胸骨压力的传递机制。枪弹钝击软体防弹衣后人体胸骨压力曲线以振荡形式衰减,压力向胸骨内部传递,其中密质骨压力在25μs时出现峰值,最大可达10.4MPa,与此同时,密质骨速度和加速度在25μs时分别出现峰值,其值为29m/s和125.38g。
It establishes a finite element model of body armor and human sternum,such as the material model of body armor and bone marrow and bone marrow,carries a numerical simulation of the human breast shock response of the anti-ballistic body armor of the opponent,obtaines the dynamic response of the sternum. It reveals the dynamic response of the human breastbone and the transmission mechanism of the internal pressure of the human body after the blunt impact of the bullet,illustrates the pressure curve of the human breast bone,The pressure of the dense bone is tend to peak at 25μs,with maximum 10. 4 MPa. At the same time,the speed and acceleration of the dense bone is tend to peak at 25μs with the value of 29 m/s and 125. 38 g.
出处
《机械设计与制造工程》
2018年第2期105-108,共4页
Machine Design and Manufacturing Engineering
