1Binzhou University, Binzhou, China
Journal of Complexity in Health Sciences, Vol. 2, Issue 1, 2019, p. 23-28.
Received 3 January 2019; received in revised form 11 April 2019; accepted 30 April 2019; published 30 June 2019
High quality mesh is the basis of bone mechanics research and the precondition to ensure the accuracy of FEA (Finite Element Analysis) calculation. In order to obtain high accuracy and low distortion mesh of bone, the CFD (Computational Fluid Dynamics) meshing method is applied in this paper. The main process of bone finite element model construction consists of three parts, including CT (Computed Tomography) imaging, three-dimensional reverse modeling and meshing. By mesh optimization and boundary conditions imposition, the stress distribution of the occipital-atlantoaxial complex model and the relative motion angle between the Occipital Atlas and Atlantoaxial are obtained. According to the rotation angle checks, it is known that all the simulation results are within the range of cadaveric test data. The mesh generation technology provides a good idea and method for the study of bone mechanics.
- CFD (Computational Fluid Dynamics) meshing method is applied in the process of bone finite element model construction.
- Stress distribution of the occipital-atlantoaxial complex model and the relative motion angle between the Occipital Atlas and Atlantoaxial are obtained.
- High quality mesh is provided for bone mechanics research and the precondition to ensure the accuracy of FEA (Finite Element Analysis) calculation.
Keywords: mesh, bone mechanics, FEA, stress, CFD.
The paper is supported by the Youth Talent Innovation Project (BZXYQNLG201703).
- Grassi L., Isaksson H. Extracting accurate strain measurements in bone mechanics: A critical review of current methods. Journal of the Mechanical Behavior of Biomedical Materials, Vol. 50, Issue 8, 2015, p. 43-54. [Publisher]
- Ling Z., Zhou L., Guo S. Equivalent circuit parameters calculation of induction motor by finite element analysis. IEEE Transactions on Magnetics, Vol. 50, Issue 2, 2014, p. 833-836. [Publisher]
- Cuillière J. C., Francois V., Drouet J. M. Automatic mesh generation and transformation for topology optimization methods. Computer-Aided Design, Vol. 45, Issue 12, 2013, p. 1489-1506. [Publisher]
- Puso M. A. A highly efficient enhanced assumed strain physically stabilized hexahedral element. International Journal for Numerical Methods in Engineering, Vol. 49, Issue 8, 2015, p. 1029-1064. [Publisher]
- Yoganandan N., Kumaresan S., Pintar F. A. Biomechanics of the cervical spine Part 2. Cervical spine soft tissue responses and biomechanical modeling. Clinical Biomechanics, Vol. 16, Issue 1, 2001, p. 1-27. [Publisher]
- Brolin K., Halldin P. Development of a finite element model of the upper cervical spine and a parameter study of ligament characteristics. Spine, Vol. 29, Issue 4, 2004, p. 376-385. [Publisher]
- Zhang H., Bai J. Development and validation of a finite element model of the occipito-atlantoaxial complex under physiologic loads. Spine, Vol. 32, Issue 9, 2007, p. 968-974. [Publisher]
- Sheng Y. Finite element analysis of occipital-atlantoaxial complex. Journal of Computer Simulation, Vol. 28, Issue 1, 2011, p. 268-272. [CrossRef]