高速冲击下人体颈椎与椎间盘接触应力分析

建立了人体头颈部有限元生物力学模型,并在颈椎与椎间盘间设置接触.以15,g 加速度载荷施加于头颈部有限元模型的头部,进行高速冲击有限元分析,得出颈椎与椎间盘的接触应力分布情况.结果表明:高速冲击下 C6、C7间易发生椎间盘突出;在头颈部有限元模型中设置接触条件,可以更好地模拟头颈部的生理特性和动力学响应情况

Analysis of Contact Stress Between Cervical Vertebra and Intervertebral Disc of Human on High-speed Impact

The finite element biomechanical model of the human head and neck was established,and the contact between the cervical vertebrae and the intervertebral disc was set.A load of 15,g acceleration was imposed on the head of the model,the finite element model on high speed impact was analysed,and the contact stress distribution between the cervical vertebra and intervertebral disc was got.The results show that under high speed impact,protrusion of intervertebral disc is easy to occur between C6 and C7,and the finite element model of the head and neck set in contact conditions can better simulate the head and neck physiological characteristics and the dynamic response.