SR EN 843-5:2007

Advanced technical ceramics - Mechanical properties of monolithic ceramics at room temperature - Part 5: Statistical analysis

This part of EN 843 specifies a method for statistical analysis of ceramic strength data in terms of a two-parameter Weibull distribution using a maximum likelihood estimation technique. It assumes that the data set has been obtained from a series of tests under nominally identical conditions. NOTE 1 In principle, Weibull analysis is considered to be strictly valid for the case of linear elastic fracture behaviour to the point of failure, i.e. for a perfectly brittle material, and under conditions in which strength limiting flaws do not interact and in which there is only a single strength-limiting flaw population. If subcritical crack growth or creep deformation preceding fracture occurs, Weibull analysis can still be applied if the results fit a Weibull distribution, but numerical parameters may change depending on the magnitude of these effects. Since it is impossible to be certain of the degree to which subcritical crack growth or creep deformation has occurred, this European Standard permits the analysis of the general situation where crack growth or creep may have occurr

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General information

Status : Withdrawn
Approval date : 3/30/2007
Publish date : 4/1/2007
Withdrawal date : 2/28/2023
Number of pages : 46
ICS : 81.060.30 Advanced ceramics
Technical Committee : 119 - Glass and ceramic ware

Relations with other standards:

Replaces SR ENV 843-5:2001
Normative reference SR EN 843-1:2007
Normative reference SR EN ISO/CEI 17025:2005
Replaced by SR EN ISO 20501:2023