Tuesday, 12 October 2004 - 1:00 PM

This presentation is part of : Wineman Symposium

Vibration of a Stress-Softened Non-Gaussian Rubber Cord

Millard F. Beatty, University of Nebraska-Lincoln, University of Nebraska-Lincoln, Department of Engineering Mechanics, PO Box 910215, Lexington, KY 40591-0215


A phenomenological model for the Mullins effect due to microstructural damage in rubberlike materials is presented. An approximate full-network constitutive equation is obtained from a general, but formidable constitutive relation based on the strain energy function for a uniform, non-Gaussian distribution of molecular chains. The constitutive model is applied to investigate the effect of stress-softening in the easy problem of small transverse vibration of a rubber cord. The results are illustrated graphically in comparison with experimental data for a few varieties of rubber materials, for each of which only three experimentally determined material constants are needed. The theoretical predictions stand in very good agreement with these data.

Back to Wineman Symposium
Back to SES Abstracts

Back to The 41st Annual SES Technical Meeting