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RESEARCH PAPERS

Determination of Elastic Constants for Human Femurs

[+] Author and Article Information
V. G. Lappi

Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, Canada S7N 0W0

M. S. King, I. Le May

University of Saskatchewan, Saskatoon, Canada S7N 0W0

J Biomech Eng 101(3), 193-197 (Aug 01, 1979) (5 pages) doi:10.1115/1.3426244 History: Received December 04, 1978; Online October 21, 2010

Abstract

The elastic properties of the bone constituting human femurs have been determined from measurements of the velocities of ultrasonic compressional and shear waves through wet, embalmed bone samples. The bone has been shown to be a transversely isotropic material with the axis of symmetry parallel to the longitudinal axis of the bone. The values of the elastic constants were determined to be:

c11=6860±330 MPa E3=5500 MPa
c12=2700±570 MPa E1=4990 MPa
c13=3760±1570 MPa ν31=0.39
c33=8480±760 MPa ν12=0.20
c44=2240±180 MPa G31=2240 MPa
where the 3-axis is that of rotational symmetry and the 1- and 2-axes are in the plane of isotropy.

Copyright © 1979 by ASME
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