摘要
为了验证汽车碰撞过程中人体颈部的损伤情况,建立了人体颈椎C4-C6部分有限元生物力学模型,模型组织包括皮质骨、松质骨、纤维环、髓核、韧带以及关节面,并在各组织接触部位设置了接触,以便更好地模拟模型在前冲击下的运动趋势。对模型施加前冲击载荷,研究各组织的应力及应变分布情况。经过验证,模型在前冲击过程中,其位移模拟数据基本在实验数据区间范围内,模拟了颈椎C4-C6部分在前冲击载荷下的运动趋势,具有较好的生物逼真度,基本反映了人体颈部冲击动力学响应。
In order to check the neck response and injury during motor vehicle accidents, we developed a detailed finite element model for human cervical spine C4 C6. This model consisted of cortical bone, cancellous bone, annulus, nucleus, ligaments and articular facet, and it also set up contact in the contacting parts for simulating the movement perfectly under frontal impact. This model could be used for stress and strain distribution after the frontal impact load was applied on this model. During the process of frontal impact, the most displacement simulated data were in the interval range of experimental data. The experimental results showed that this model for the human cervical spine C4-C6 simulated the movement under the frontal impact with fidelity, and reflected the impact dynamics response on the whole.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
2014年第1期124-127,共4页
Journal of Biomedical Engineering
关键词
颈椎C4-C6
有限元模型
前冲击载荷
应力分布
cervical spine C4-C6
finite element model
the frontal impact load
stress distribution
