Compression of Bonded Annular Rubber Blocks

Autor: Peter A. Engel, William L. Brodsky, Yun Ling
Rok vydání: 1995
Předmět:
Zdroj: Journal of Engineering Mechanics. 121:661-666
ISSN: 1943-7889
0733-9399
DOI: 10.1061/(asce)0733-9399(1995)121:6(661)
Popis: The load-deflection relation and stress distribution of bonded annular rubber blocks are first derived by an approximate-linear approach. The solution approaches the exact relation asymptotically as the block thickness reduces. A general formula for the nonlinear load-deflection relation is then presented, based on a variational method, in which no specific form of the strain-energy function is required. An explicit approximate analytical solution is obtained by applying the general formula to a neo-Hookean material. The approximate solutions are compared with the finite-element analysis. The relationships among the stiffness, the shape factor s , and the diameter ratio β are explored in detail and some interesting phenomena are observed. For example, a centrally placed tiny hole in a very thin circular disk can cause a sharp drop in its stiffness.
Databáze: OpenAIRE