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- 2007473627 abstract "Reliability estimates for the resistance distribution of wood product properties may be made from test data where all specimens are broken (full data sets) or by using data sets where information is obtained only from the weaker pieces in the distribution (censored data). Whereas considerable information exists on property estimation from full data sets, much less information is available on property estimation using censored data. To assess the need for a more rigorous study, a small simulation study was conducted to identify potential problems that could be associated with censoring effects on property estimates from an assumed Weibull distribution for use in reliability-based standards such as ASTM D 5457. Results suggest that reasonable estimates of property percentiles may be obtained when the censoring point is above the percentile needed. However, censoring also affects the estimate of the Weibull shape parameter, and therefore the coefficient of variation. This is important because the coefficient of variation is used to estimate the data confidence factor and the normalization factor also used in determining the data resistance factor. The simulation suggests that for a given sample size, the estimate of Weibull-shape parameter gets better as more of the distribution is included. Further studies are recommended to provide guidance on use of censored data with both the two- and three-parameter Wiebull distributions.".
- 2007473627 contributor B10998227.
- 2007473627 contributor B10998228.
- 2007473627 contributor B10998229.
- 2007473627 created "[2007]".
- 2007473627 date "2007".
- 2007473627 date "[2007]".
- 2007473627 dateCopyrighted "[2007]".
- 2007473627 description "Includes bibliographical references (p. 3).".
- 2007473627 description "Reliability estimates for the resistance distribution of wood product properties may be made from test data where all specimens are broken (full data sets) or by using data sets where information is obtained only from the weaker pieces in the distribution (censored data). Whereas considerable information exists on property estimation from full data sets, much less information is available on property estimation using censored data. To assess the need for a more rigorous study, a small simulation study was conducted to identify potential problems that could be associated with censoring effects on property estimates from an assumed Weibull distribution for use in reliability-based standards such as ASTM D 5457. Results suggest that reasonable estimates of property percentiles may be obtained when the censoring point is above the percentile needed. However, censoring also affects the estimate of the Weibull shape parameter, and therefore the coefficient of variation. This is important because the coefficient of variation is used to estimate the data confidence factor and the normalization factor also used in determining the data resistance factor. The simulation suggests that for a given sample size, the estimate of Weibull-shape parameter gets better as more of the distribution is included. Further studies are recommended to provide guidance on use of censored data with both the two- and three-parameter Wiebull distributions.".
- 2007473627 extent "6 p. ;".
- 2007473627 hasFormat "Also available on the World Wide Web.".
- 2007473627 hasFormat "Censoring data for resistance factor calculations in load and resistance factor design".
- 2007473627 identifier fpl_rn304.pdf.
- 2007473627 isFormatOf "Also available on the World Wide Web.".
- 2007473627 isFormatOf "Censoring data for resistance factor calculations in load and resistance factor design".
- 2007473627 isPartOf "Research note FPL ; 0304.".
- 2007473627 isPartOf "Research note FPL ; RN-0304".
- 2007473627 issued "2007".
- 2007473627 issued "[2007]".
- 2007473627 language "eng".
- 2007473627 publisher "Madison, WI : United States Dept. of Agriculture, Forest Service, Forest Products Laboratory,".
- 2007473627 relation "Also available on the World Wide Web.".
- 2007473627 relation "Censoring data for resistance factor calculations in load and resistance factor design".
- 2007473627 subject "Load factor design Mathematical models.".
- 2007473627 subject "Reliability (Engineering)".
- 2007473627 subject "SD433 .U572 no. 304".
- 2007473627 subject "Weibull distribution.".
- 2007473627 title "Censoring data for resistance factor calculations in load and resistance factor design : a preliminary study / James W. Evans, David W. Green.".
- 2007473627 type "text".