Micromechanical modeling of ductile fracture of human humerus

Authors

  • J. Rahmoun Laboratory LAMIH, Polytechnic University Hauts-de-France, 59313 Valenciennes cedx 9, France. Phone: +33327511412
  • H. Naceur Laboratory LAMIH, Polytechnic University Hauts-de-France, 59313 Valenciennes cedx 9, France. Phone: +33327511412
  • P. Drazetic Laboratory LAMIH, Polytechnic University Hauts-de-France, 59313 Valenciennes cedx 9, France. Phone: +33327511412
  • C. Fontaine Laboratory of Anatomy, Hospital University of Lille, 59000 Lille, France

DOI:

https://doi.org/10.15282/jmes.14.2.2020.32.0544

Keywords:

Micromechanics, biomechanics, multiscale modeling, fracture, impact, finite element

Abstract

This paper deals with the formulation, development and validation of a newly developed micromechanical-based model for the modeling of the nonlinear ductile fracture of human humerus. The originality of the present works concerns the coupling between the micromechanical formulation based on the Mori-Tanaka homogenization scheme for cylindrical voids and the Marigo nonlinear ductile damage model based on the porosity growth. The proposed model was implemented as a User Material UMAT within the explicit dynamic software LS-DYNA and validated by numerical and experimental analysis conducted by a drop tower impact of human humerus. The outcome of the proposed multi-scale model appears to correctly predict the general trends observed experimentally via the good estimation of the ultimate impact load and the fracture patterns of the human humerus.

Downloads

Published

2020-06-23

How to Cite

[1]
J. Rahmoun, H. Naceur, P. Drazetic, and C. Fontaine, “Micromechanical modeling of ductile fracture of human humerus”, JMES, vol. 14, no. 2, pp. 6952–6960, Jun. 2020.

Issue

Section

Article