报告摘要
In this talk, recent advances in the numerical modelling and experimental characterisation of the dynamic behaviours of various brittle materials under high strain rate loading conditions will be presented. In particular, split Hopkinson pressure bar, micro-CT and acoustic emission technique were used to characterise energy dissipation mechanisms in dynamic failure of brittle materials.A 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 and high confinement pressure 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.
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. His research is mainly focused on mechanics of materials with special interests in multiscale multiphysics modelling and characterisation, solid–fluid interactions, impact engineering, and advanced structural materials. He has published over 180 peer-reviewed articles in leading international journals.