A Non-Probabilistic Analysis Method on Reliability of Crack Propagation Life

Abstract:

Based on non-probabilistic reliability theory, a new non-probabilistic model of reliability is proposed in this paper. The new model which extends the traditional interval model is available for the non-uniform distribution of random variable and could be more widely used in practical application. A utility method to analyze the crack propagation life under given reliability is put forward based on the proposed model, and its theoretical basis is also proved by theory deducing. This simple and practicable method avoids complex integral operation and the errors caused by the hypothetic distribution form. Finally, the validity and efficiency of this method is verified by numerical examples.

• Periodical: Applied Mechanics and Materials (Volumes 444-445)
• Pages: 18-22
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.444-445.18
• Online since: October 2013
• Authors: Yong En Du, Sheng Nan Wang, Xiao Zhong Yan
• Keywords: Crack Propagation Life, Interval Analysis, Non-Probabilistic, Reliability

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