主讲人： 沈鲁明教授 悉尼大学
报告主题：Numerical modelling and experimental characterisation of dynamic failure of brittle materials
主持人：谢文教授 宁波大学
报告时间: 2024.7.4 14:00（周四下午）
报告地点：思禹建工楼A408（线下）
报告人简介：
Luming Shen is a Professor and Associate Head for Research in the School of Civil Engineering at The University of Sydney, Australia. He received his bachelor’s degree in building engineering and master's degree in structural engineering from Tongji University, and his PhD in civil engineering from the University of Missouri at Columbia, Missouri in the USA. He was a Lecturer in the Department of Civil Engineering at Monash University between 2006 and 2008. He joined the School of Civil Engineering at the University of Sydney as Senior Lecturer in 2008 and was promoted to full professor in 2020. Prof Shen’s research is mainly focused on mechanics of materials with special interests in multiscale modelling and characterization, solid–fluid interactions, impact engineering, and advanced structural materials. Prof Shen has received continuous funding support from the Australian Research Council since 2007 including eight Discovery Projects (seven as lead Chief Investigator) and one Centre of Excellence, and three overseas grants –one from the USA and two from China. He has published over 170 peer-reviewed articles in leading international journals. Prof Shen has been a member of the Australian Research Council College of Experts since 2022.
内容摘要：
In the presentation, recent advances on the numerical modelling and experimental characterisation of the dynamic behaviours of various brittle materials under high strain rate loading conditions will be reported. In particular, split Hopkinson pressure bar in combination with micro-CT, digital image correlation etc was used to characterise the dynamic failure of cementious materials, partially saturated porous media and 3D printed rock-like material with pre-existing flaws under impact loading. A new damage-plasticity constitutive model which takes account of the effect of confining pressure and high strain rate on the strength and post-peak behaviour of rock subjected to dynamic loading will also be reported in the presentation. These experimental and numerical results will be useful for safeguarding critical infrastructure against natural disasters and accidental events as well as facilitating effective and environmentally sustainable resource recovery processes.