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Publisher DOI: 10.1016/j.jeurceramsoc.2008.08.012
Title: Failure probability of ceramic coil springs
Language: English
Authors: Nohut, Serkan 
Schneider, Gerold A. 
Issue Date: 2009
Source: Journal of the European Ceramic Society ; Vol. 29.2009, pp. 1013-1019
Abstract (german): Ceramic springs are commercially available and a detailed reliability analysis of these components would be useful for their introduction in new applications. In this paper an analytical and a numerical analyses of the failure probability for coil springs under compression is presented. Based on analytically derived relationships and numerically calculated results, fitting functions for volume and surface flaws will be introduced which provide the prediction of the failure probability of ceramic coil springs with different spring- and material parameters. As an example, typical mechanical properties for Si3N4 are chosen. It is shown that surface flaws control the strength of the investigated springs.
DOI: 10.15480/882.851
Institute: Keramische Hochleistungswerkstoffe M-9 
Type: ResearchPaper
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