DIN EN 843-5-2007
高级工业陶瓷.室温下单块陶瓷的机械特征.第5部分:统计分析

Advanced technical ceramics - Mechanical properties of monolithic ceramics at room temperature - Part 5: Statistical analysis; English version of DIN EN 843-5: 2007-03

DIN EN 843-5-2007 发布历史

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 occurred, provided that it is recognized that the parameters derived from the analysis may not be the same as those derived from data with no subcritical crack growth or creep. NOTE 2 This European Standard employs the same calculation procedures as method A of ISO 20501:2003 [1], but does not provide a method for dealing with censored data (method B of ISO 20501).

DIN EN 843-5-2007由德国标准化学会 DE-DIN 发布于 2007-03。

DIN EN 843-5-2007 在中国标准分类中归属于: Q32 特种陶瓷，在国际标准分类中归属于: 81.060.30 高级陶瓷。

DIN EN 843-5-2007 发布之时，引用了标准

• EN 843-1-2006 高技术陶瓷.环境温度单体陶磁的机械特性.第1部分:抗弯强度测定*， 2022-07-18 更新
• EN ISO/IEC 17025 *， 2017-12-01 更新

* 在 DIN EN 843-5-2007 发布之后有更新，请注意新发布标准的变化。

DIN EN 843-5-2007的历代版本如下：

• 2007年03月 DIN EN 843-5-2007 高级工业陶瓷.室温下单块陶瓷的机械特征.第5部分:统计分析

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标准号

DIN EN 843-5-2007

发布日期

2007年03月

实施日期

废止日期

无

中国标准分类号

Q32

国际标准分类号

81.060.30

发布单位

DE-DIN

引用标准

EN 843-1-2006 EN ISO/IEC 17025

被代替标准

DIN EN 843-5-2005 DIN V ENV 843-5-1997

适用范围

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 occurred, provided that it is recognized that the parameters derived from the analysis may not be the same as those derived from data with no subcritical crack growth or creep. NOTE 2 This European Standard employs the same calculation procedures as method A of ISO 20501:2003 [1], but does not provide a method for dealing with censored data (method B of ISO 20501).

DIN EN 843-5-2007系列标准