Material Nonlinearity Effects in the Stress Analysis of Conical Disk Springs

[+] Author and Article Information
G. Curti, F. A. Raffa

Politecnico di Torino, Dipartimento di Meccanica, Corso Duca degli Abruzzi, 24, 10129 Torino, Italy

J. Mech. Des 114(2), 238-244 (Jun 01, 1992) (7 pages) doi:10.1115/1.2916937 History: Received February 01, 1991; Online June 02, 2008


The influence of material nonlinearity on the behavior of conical disk springs (Belleville springs) is investigated by means of finite element models. Both the load-deflection curve and the stress field of this kind of spring are shown to be significantly affected by the elastic-plastic behavior of the material. In particular, as far as the actual stress field is concerned, consideration of the material nonlinearity explains some apparent contradictions of well-known analytical formulations, such as the Almen-László theory, based on the usual assumption of linear elastic behavior of the material.

Copyright © 1992 by The American Society of Mechanical Engineers
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