Optimizing the Ogden Strain Energy Expression of Rubber Materials

[+] Author and Article Information
T. Beda

Department of Industrial and Mechanical Engineering, Ecole Nationale Supérieure Polytechnique,  University of Yaounde I, BP 8390 Yaounde, Cameroontbeda@yahoo.com

J. Eng. Mater. Technol 127(3), 351-353 (Mar 16, 2005) (3 pages) doi:10.1115/1.1925282 History: Received October 24, 2003; Revised March 08, 2005; Accepted March 16, 2005

The Ogden strain energy expression is expanded to an optimal number of terms characterizing materials to predict any response of any mode of deformation well. The effect of each term generating the model is highlighted in the corresponding state of deformation, i.e., influence domain: Moderate stretch, transition, or stiffening region, with the help of the proposed method.

Copyright © 2005 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 1

Equivalence of functions between y(x) and ϕ(x) for x∊[0,2]

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Figure 2

Straight line of identification

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Figure 3

Predicted results compared to Treloar data: (a): Simple tension data exploited; and (b): Simple and biaxial tensions data exploited



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