陶瓷材料Weibull模数最小二乘估计值的统计性质

STATISTICAL PROPERTIES OF WEIBULL MODULUS ESTIMATED WITH THE LEAST SQUARES METHOD

借助于MonteCarlo数值模拟技术研究了陶瓷材料Wcibull模数最小二乘估计值的统计性质，发现强度测试值样本容量N处于10～100这一较宽的范围内时，Wcibull模数估计值服从对数正态分布，而不是正态分布。

The statistical properties of Weibull modulus estimated with the least squares method are studied by Monte Carlosimulation technique. It is shown that the Weibull estimators follow a log normal distribution rather than a normaldistribution.