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Statistical modelling of creep rupture data.

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<mark>Journal publication date</mark>1999
<mark>Journal</mark>Journal of Engineering Materials and Technology
Issue number3
Volume121
Number of pages8
Pages (from-to)264-271
Publication StatusPublished
<mark>Original language</mark>English

Abstract

A flexible statistical modeling framework for the analysis of creep rupture data is proposed, which offers an improvement on traditional methods of deriving creep rupture strength values and confidence limits. The paper reviews a family of models that can be used to represent the trend relationship between failure times about the trend line, and examines the reliability of extrapolations. Areas of statistical research which would lead to model improvement are discussed, such as variance heterogeneity, left censoring and allowance for the cluster (cast) structure of the data.