Finite Elastic Deformation for a Class of Soft Biological Tissues

[+] Author and Article Information
Han-Chin Wu, R. Reiss

Division of Materials Engineering, The University of Iowa, Iowa City, Iowa

J Biomech Eng 99(2), 98-103 (May 01, 1977) (6 pages) doi:10.1115/1.3426279 History: Received January 18, 1977; Online October 21, 2010


The stress response of soft biological tissues is investigated theoretically. The treatment follows the approach of Wu and Yao [1] and is now extended for a broad class of soft tissues. The theory accounts for the anisotropy due to the presence of fibers and also allows for the stretching of fibers under load. As an application of the theory, a precise form for the strain energy function is proposed. This form is then shown to describe the mechanical behavior of annulus fibrosus satisfactorily. The constants in the strain energy function have also been approximately determined from only a uniaxial tension test.

Copyright © 1977 by ASME
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