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The elastoplastic numerical model and verification by macroindentation experiment of femoral head

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  • Jun Wang
  • Chen Yi
  • Sufang Wang
  • Ling Wang
  • Haiyou Jia
  • Bo Chen
  • Yong Huan

Abstract

For internal fixation of proximal femoral fractures, a screw is commonly placed into the femoral head; therefore, mechanical matching of the femoral head and screw is important. This article proposes an elastoplastic numerical model of the femoral head that takes nonlinear deformation and cancellous bone heterogeneity into account. Force–depth curves from finite element analysis based on the model were compared with those from macroindentation experiments. The maximum difference between the indentation depth shown by the finite element model and that found with macroindentation testing was 5.9%, which demonstrates that the model is valid.

Suggested Citation

  • Jun Wang & Chen Yi & Sufang Wang & Ling Wang & Haiyou Jia & Bo Chen & Yong Huan, 2021. "The elastoplastic numerical model and verification by macroindentation experiment of femoral head," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 24(14), pages 1588-1594, March.
    • Handle: RePEc:taf:gcmbxx:v:24:y:2021:i:14:p:1588-1594
    DOI: 10.1080/10255842.2021.1902510
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