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BS ISO 20501:2019

BS ISO 20501:2019

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Fine ceramics (advanced ceramics, advanced technical ceramics). Weibull statistics for strength data

Amended by

BS EN ISO 20501:2022

Available format(s)

Hardcopy , PDF

Withdrawn date

06-02-2023

Language(s)

English

Published date

07-03-2019

Publisher

British Standards Institution

This document covers the reporting of uniaxial strength data and the estimation of probability distribution parameters for advanced ceramics which fail in a brittle fashion.

This document covers the reporting of uniaxial strength data and the estimation of probability distribution parameters for advanced ceramics which fail in a brittle fashion. The failure strength of advanced ceramics is treated as a continuous random variable. Typically, a number of test specimens with well-defined geometry are brought to failure under well-defined isothermal loading conditions. The load at which each specimen fails is recorded. The resulting failure stresses are used to obtain parameter estimates associated with the underlying population distribution.

This document is restricted to the assumption that the distribution underlying the failure strengths is the two-parameter Weibull distribution with size scaling. Furthermore, this document is restricted to test specimens (tensile, flexural, pressurized ring, etc.) that are primarily subjected to uniaxial stress states. Subclauses 6.4 and 6.5 outline methods of correcting for bias errors in the estimated Weibull parameters, and to calculate confidence bounds on those estimates from data sets where all failures originate from a single flaw population (i.e. a single failure mode). In samples where failures originate from multiple independent flaw populations (e.g. competing failure modes), the methods outlined in 6.4 and 6.5 for bias correction and confidence bounds are not applicable.

Committee
RPI/13
DocumentType
Standard
ISBN
9780580992841
Pages
46
ProductNote
THIS STANDARD ALSO REFERS TO EN 843-5:2007
PublisherName
British Standards Institution
Status
Withdrawn

Standards Relationship
ISO 20501:2019 Identical

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Hardcopy - English
PDF - English
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