کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1478073 991209 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Unbiased estimation of Weibull parameters with the linear regression method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Unbiased estimation of Weibull parameters with the linear regression method
چکیده انگلیسی

Monte Carlo simulations were used to search for the probability estimator for the unbiased estimate of the Weibull parameters in the linear regression method. Compared with commonly-used probability estimators, the estimator proposed gives a more accurate estimation of the Weibull modulus and the same estimation precision of the scale parameter. It is found that the estimator proposed is more conservative than the estimator Pi = (i − 0.5)/n recommended by previous authors, and hence results in a higher safety in reliability predictions. The unbiased properties of the estimated Weibull parameters were validated with actual experimental data. It is also concluded that the estimated Weibull modulus from actual experimental data is more dispersive than that from Monte Carlo simulation, which arises from the fact that the strength data from actual experiments does not perfectly follow the Weibull statistics.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 26, Issue 7, 2006, Pages 1099–1105
نویسندگان
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