An Experimental Study of a Nonlinear Viscoelastic Solid in Uniaxial Tension

[+] Author and Article Information
W. G. Gottenberg, J. O. Bird, G. L. Agrawal

Department of Mechanical Engineering, University of Colorado, Boulder, Colo.

J. Appl. Mech 36(3), 558-564 (Sep 01, 1969) (7 pages) doi:10.1115/1.3564717 History: Received October 07, 1968; Revised February 07, 1969; Online September 14, 2011


The multiple integral form of the constitutive relation for nonlinear viscoelasticity is correlated with experimental results for the case of uniaxial tension of a polymeric material. Special forms of the kernel functions are assumed in which the arguments of these functions are taken in additive form. This permits the development of a simple procedure for determining the material functions from stress-relaxation tests. The resulting constitutive relation, for a particular material, is used to predict the load response to single and consecutive constant strain-rate programs and the results are compared with experimentally obtained data.

Copyright © 1969 by ASME
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