| タイトル | Calculation of Weibull strength parameters and Batdorf flow-density constants for volume- and surface-flaw-induced fracture in ceramics |
| 本文（外部サイト） | http://hdl.handle.net/2060/19890003559 |
| 著者（英） | Pai, Shantaram S.; Gyekenyesi, John P. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1988-10-01 |
| 言語 | eng |
| 内容記述 | The calculation of shape and scale parameters of the two-parameter Weibull distribution is described using the least-squares analysis and maximum likelihood methods for volume- and surface-flaw-induced fracture in ceramics with complete and censored samples. Detailed procedures are given for evaluating 90 percent confidence intervals for maximum likelihood estimates of shape and scale parameters, the unbiased estimates of the shape parameters, and the Weibull mean values and corresponding standard deviations. Furthermore, the necessary steps are described for detecting outliers and for calculating the Kolmogorov-Smirnov and the Anderson-Darling goodness-of-fit statistics and 90 percent confidence bands about the Weibull distribution. It also shows how to calculate the Batdorf flaw-density constants by uing the Weibull distribution statistical parameters. The techniques described were verified with several example problems, from the open literature, and were coded. The techniques described were verified with several example problems from the open literature, and were coded in the Structural Ceramics Analysis and Reliability Evaluation (SCARE) design program. |
| NASA分類 | STRUCTURAL MECHANICS |
| レポートNO | 89N12930
NAS 1.15:100890
NASA-TM-100890
E-4128 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/144631 |
