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Estimation of Weibull parameters from parameters of initial distribution of flaw size

C Wakabayashi, K Yasuda and T Shiota

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The distribution of the largest flaw size is derived from the initial distribution of flaw size based on extreme value statistics, and also the distribution of fracture origin size is given by transforming Weibull distribution by fracture mechanical relation. These two distributions are equivalent under uniaxial loading. By using this relation, their parameters are related each other and Weibull parameters are estimated from the parameters of the initial distribution of flaw size and the number of links.


PACS

81.40.Np Fatigue, corrosion fatigue, embrittlement, cracking, fracture, and failure

62.20.M- Structural failure of materials

Subjects

Condensed matter: structural, mechanical & thermal

Dates

Issue 1 (2009)



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