冯云田教授学术报告通知(2023-35)

报告题目：Discrete element modelling of arbitrarily shaped particles: the energy-conserving contact (ECC) theory and three normal contact models

报  告 人：冯云田 教授

报告时间：2023年8月14日（周一）9:00-12:00

报告地点：河海大学（江宁校区）乐学楼1116

主办单位：yd12306 ydcom云顶固体力学研究所

                 民盟河海大学委员会

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报告简介：

This talk aims to give a detailed description of the energy-conserving contact theory for arbitrarily shaped particles in DEM and corresponding normal contact models. It will first review the major developments in the field and highlight the key challenges and issues that have hindered progress in discrete element modelling of arbitrarily shaped particles. Then the key steps in the development of the energy-conserving contact theory will be presented, together with three contact models established within the ECC theory. In particular, the model using the Minkowski-difference overlap provides a unified definition and also with energy-conserving features for both convex and concave particles. The contact boundary-based models, with two newly added versions within the ECC framework, will also be mentioned.

报告人简介：

Dr Feng is a Professor in Zienkiewicz Centre for Computational Engineering, Swansea University, UK. The Centre has a long established international reputation in computational engineering research and particularly has pioneered the development of many of the cornerstones of the finite element method. With a first degree in Mechanical Engineering and a PhD in Computational Mechanics, Prof. Feng has been working in the Centre since 1992.  He has been intensively involved in high quality research activities in many aspects of Computational Engineering and is a renowned expert. Over the last 20 years, his main research interests have been focused on developing advanced computational techniques for modelling multi-fracturing of solids and particulate systems under dynamic/impact loading. In particular, he has made original contributions to many fundamental developments in the discrete element method, and is an international authority in the field. Prof. Feng has published over 200 research papers, and has delivered over 10 plenary and keynote lectures in international conferences. His current research projects include the development of general energy conserving contact theories for arbitrarily shaped non-spherical discrete elements, a generic computational framework for coarse-graining modelling of large scale particulate systems, and multi-phase and multi-field coupling strategies for granular systems.