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분야 | ISO/TC 206 : Fine ceramics |
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적용범위 | ISO 20501:2003 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. ISO 20501:2003 is restricted to the assumption that the distribution underlying the failure strengths is the two-parameter Weibull distribution with size scaling. Furthermore, this International Standard is restricted to test specimens (tensile, flexural, pressurized ring, etc.) that are primarily subjected to uniaxial stress states. Measurements of the strength at failure are taken for one of two reasons: either for a comparison of the relative quality of two materials, or the prediction of the probability of failure (or alternatively the fracture strength) for a structure of interest. ISO 20501:2003 permits estimates of the distribution parameters which are needed for either. In addition, this International Standard encourages the integration of mechanical property data and fractographic analysis. |
국제분류(ICS)코드 | 81.060.30 : 고급 세라믹 |
페이지수 | 33 |
Edition | 1 |
No. | 표준번호 | 표준명 | 발행일 | 상태 |
---|---|---|---|---|
1 | ISO 20501:2019 | Fine ceramics (advanced ceramics, advanced technical ceramics) — Weibull statistics for strength data | 2019-03-05 | 표준 |
2 | ISO 20501:2003/Cor 1:2009 | 2009-09-22 | 구판 | |
3 | ISO 20501:2003 | Fine ceramics (advanced ceramics, advanced technical ceramics) — Weibull statistics for strength data | 2003-11-25 | 구판 |
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