Dynamical Study of Couple Stress Effects in Human Compact Bone

[+] Author and Article Information
R. S. Lakes

Biomedical Engineering Program, College of Engineering, University of Iowa, Iowa City, Iowa 52240

J Biomech Eng 104(1), 6-11 (Feb 01, 1982) (6 pages) doi:10.1115/1.3138308 History: Received January 21, 1981; Revised July 20, 1981; Online June 15, 2009


Torsional resonance experiments performed on wet human compact bone disclose effects due to couple stress. The characteristic length, which is an additional material coefficient which appears in couple-stress theory, is of the order of the size of osteons and appears to be smaller at high frequencies than at low frequencies. The presence of couple-stress effects implies a reduction in the stress concentration factor around holes, particularly small holes.

Copyright © 1982 by ASME
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