基于DICOM数据建立人体颈部有限元模型

目的建立人体颈部有限元模型,用于生物力学研究。方法对标准成年男性进行多层螺旋CT扫描,应用DICOM数据和Mimics软件进行三维重建,在TrueGrid里完成网格划分,结合有限元分析软件ANSYS构建完整颈部模型并在LS-DYNA下进行动力学检验计算。结果该模型参照人体解剖结构模拟了颈椎、椎间盘、韧带和肌肉等组织,共由14758个单元构成,仿真结果与国外实验数据对比基本相符。结论此方法建立的颈部有限元模型能较好地模拟生物力学实验,可用于今后动力学响应分析。

Development of a Human Neck Finite Element Model by Using DICOM Data

Objective To develop a human neck finite element model for biomechanical studies. Methods A normal man was scanned by multilayer spiral CT for transverse section images. And then, getting 3D reconstruction model by DICOM data and Mimics software and developing a full 3D finite element model using TrueGrid and ANSYS. Finally, it was analysed in LS-DYNA.Results The model was built by using 14 758 solid elements according to human anatomical structure, which consists of head, cervical vertebra, discs, ligaments and muscles. The result of simulation was validated compared with foreign experimental data.Conclusion The method of development of a human neck element model can simulate the biomechanical experiment commendably, and use for further study on biomechanics.