Finite element analysis of human femur bone

Authors

  • U Mughal
  • H Khawaja
  • M Moatamedi

DOI:

https://doi.org/10.1260/1750-9548.9.2.101

Abstract

An effort is made to analyse the stresses experienced by the human femur. In order to achieve these results a CAD model was developed by using the 3-D scanning of generic human femur for an individual of 70 kg weight (approx. averaged adult weight). The marrow cavity has been approximated as a hollow cylinder. The FEM model was built using solid tetrahedral element (20-noded 186 structural solid, ANSYS®). The model was analysed for its sensitivity. The results were computed for the range of loads. In this analysis, the maximum stress and its location were noted. In addition, the critical value of load was estimated for ultimate failure (i.e. fracture). The evaluated results give an understanding of the natural safety factor. The presented results are of significant importance in replication of the natural design parameters in creating the synthetic bone substitutes.

References

Szabo, B.A. and I. Babuška, Finite Element Analysis 1991: Wiley.

Zienkiewicz, O.C., R.L. Taylor, and J.Z. Zhu, The Finite Element Method: Its Basis and Fundamentals: Its Basis and Fundamentals 2005: Elsevier Science. https://doi.org/10.1016/b978-1-85617-633-0.00005-8

Burstein, A.H., et al., The ultimate properties of bone tissue: The effects of yielding. Journal of Biomechanics, 1972. 5(1): p. 35–44.

Ji, B. and H. Gao, Mechanical properties of nanostructure of biological materials. Journal of the Mechanics and Physics of Solids, 2004. 52(9): p. 1963–1990.

Currey, J.D., Mechanical properties of bone tissues with greatly differing functions. Journal of Biomechanics, 1979. 12(4): p. 313–319. https://doi.org/10.1016/0021-9290(79)90073-3

Currey, J.D., The effect of porosity and mineral content on the Young's modulus of elasticity of compact bone. Journal of Biomechanics, 1988. 21(2): p. 131–139. https://doi.org/10.1016/0021-9290(88)90006-1

Katz, J.L. and Y. Hyo Sub, The Structure and Anisotropic Mechanical Properties of Bone. Biomedical Engineering, IEEE Transactions on, 1984. BME-31(12): p. 878–884. https://doi.org/10.1109/tbme.1984.325252

Weiner, S. and H.D. Wagner, THE MATERIAL BONE: Structure-Mechanical Function Relations. Annual Review of Materials Science, 1998. 28(1): p. 271–298. https://doi.org/10.1146/annurev.matsci.28.1.271

Stolarski, T., Y. Nakasone, and S. Yoshimoto, Engineering Analysis with ANSYS Software 2011: Elsevier Science.

Papini, M., et al., The biomechanics of human femurs in axial and torsional loading: comparison of finite element analysis, human cadaveric femurs, and synthetic femurs. J Biomech Eng, 2007. 129(1): p. 12–9. https://doi.org/10.1115/1.2401178

Huang, B.W., et al., Dynamic Characteristics of a Hollow Femur. Life Science Journal, 2012. 9(1): p. 723–726.

ANSYS®, Academic Research, release 12.0.

ANSYS®, Academic Research, Theory Reference, in Structures, Static Analysis release 12.0.

Systèmes, D., SolidWorks®, release 2012.

Lombard, M., Solidworks 2013 Bible 2013: Wiley.

Published

2015-06-30

How to Cite

Mughal, U., Khawaja, H. and Moatamedi, M. (2015) “Finite element analysis of human femur bone”, The International Journal of Multiphysics, 9(2), pp. 101-108. doi: 10.1260/1750-9548.9.2.101.

Issue

Section

Articles

Most read articles by the same author(s)

1 2 3 4 5 > >>