报告内容简介：

The Weibull distribution based on the weakest link principle is most often assumed to describe the strength variation that occurs in fracture of brittle materials. However, taking advantage of the high-quality strength data available, there are more increasing evidences showing that the uncritical use of the Weibull distribution is questioned, especially when it is applied for the extrapolation of experimental results. In this presentation, how to correctly select an optimal strength distribution will be discussed, with its implications for deeper insight into the intrinsic size effect, role of disorder (or heterogeneity), fracture mechanism, and prediction of failure and natural disasters. It will be highlighted that, in more serious applications such as rocks in mining, the Weibull distribution should be considered as an empirical one on an equal footing with other distribution functions.

报告人简介：

卢春生，澳大利亚科廷大学土木与机械工程学院教授。1993年获中国科学院力学研究所固体力学专业博士学位，曾先后工作于中国科学院力学研究所，日本东北大学，新西兰维多利亚大学，奥地利莱奥本大学，澳大利亚悉尼大学等国内外研究机构和高校。主要从事统计损伤断裂力学、跨尺度力学、标度律和尺寸效应等领域的研究工作，已在 Physical Review Letters, Nano Letters, Journal of the Mechanics and Physics of Solids, Journal of Geophysical Research, Acta Materialia, Nano Energy 等国际著名刊物发表论文250多篇，论文被引用7000多次。