The Effect of Compressibility on the Stress Distributions in Thin Elastomeric Blocks and Annular Bushings

[+] Author and Article Information
Yeh-Hung Lai, D. A. Dillard

Engineering Science and Mechanics Department, Virginia Polytechnic Institute, Blacksburg, VA 24061

J. S. Thornton

Texas Research Institute, Austin, TX 78746

J. Appl. Mech 59(4), 902-908 (Dec 01, 1992) (7 pages) doi:10.1115/1.2894059 History: Received September 22, 1987; Revised September 25, 1991; Online March 31, 2008


The effect of the bulk compressibility of elastomers on the response of rubber blocks and bushings bonded to platens is in vestigated. Closed-form solutions for the stresses and deformations within the elastomer are presented for the case of rigid adherends. It is shown that even with relatively small shape factors, the compressibility can significantly affect the apparent stiffness. A finite element analysis shows that the closed-form solution accurately predicts the stress distribution for rigid adherends, but also reveals that platen deformations in realistic systems may significantly alter the distributions.

Copyright © 1992 by The American Society of Mechanical Engineers
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