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Automotive Engineering ›› 2019, Vol. 41 ›› Issue (10): 1172-1178.doi: 10.19562/j.chinasae.qcgc.2019.010.010

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Modeling and Validation of Cervical Spine Segment C67 and Ligament Injury Analysis Under Different Conditions

Song Guanghui1, Wang Guangliang1, Li Dapeng2, Han Xiaoqiang1 & Li Zhigang1   

  1. 1.School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044;
    2.Beijing Children’s Hospital, Capital Medical University, Beijing 100045
  • Online:2019-10-25 Published:2019-10-25

Abstract: The form and feature of response of different neck ligaments under typical crash conditions are studied in this paper. Firstly, the finite element model for cervical spine segment C67 with high geometric accuracy and high-quality hexahedral mesh is established. Then, the model is verified by cadaver tests under the conditions of forward flexion, backward tension, axial rotation and lateral bending. The simulation results show that the C67 segment has high bio-fidelity. Finally, the responses and the injury patterns of different ligaments under abovementioned four loading conditions are analyzed and it is found that anterior longitudinal ligament is most prone to injury under backward tension condition, the most injury-prone condition for posterior longitudinal ligament and interspinous ligament is forward flexion, while capsular ligament has by and large similar injury risk under the conditions of forward flexion, axial rotation and lateral bending

Key words: vehicle crash, cervical spine segment C67, loading pattern, ligament, response