On the Strength Anisotropy of Bone and Wood

[+] Author and Article Information
S. C. Cowin

Department of Biomedical Engineering, Tulane University, New Orleans, La. 70118

J. Appl. Mech 46(4), 832-838 (Dec 01, 1979) (7 pages) doi:10.1115/1.3424663 History: Received August 01, 1978; Online July 12, 2010


Formulas for the tensile, compressive, and shear strengths along an axis off the grain axis of a material with orthotropic symmetry are derived from the quadratic form of the Tsai-Wu strength theory. The results are compared with some shear strength data on wood and they are applied to data on human femoral bone and bovine Haversian bone. A strength criterion consistent with the Tsai-Wu theory and with the existing experimental strength data on bone is identified.

Copyright © 1979 by ASME
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