题目： Graphene Origami Enabled Mechanical Metamaterials for Engineering Structures
报告人：Yang Jie 澳大利亚皇家墨尔本理工大学
时间：2023年7月20日星期四下午 13：30-15：30
地点：土木楼 312
专家简介：
杨杰教授于2002年获上海交通大学固体力学专业博士， 2002-2004年赴澳大利亚昆士兰大学土木工程系从事博士后研究工作， 2005-2007任香港城市大学建筑系讲师， 2008年至今在澳大利亚皇家墨尔本理工大学工程学院任教。长期从事先进复合材料结构与 功能梯度材料结构分析、碳纳米管及石墨烯增强复合材料结构、结构动力学与稳定性、智能材料与结构控制、材料与结构多尺度分析，微 /纳米机电系统、微 /纳米力学等领域的研究工作。迄今在以上领域已发表SCI国际学术期刊论文 300余篇， SCI总引用 18000余次， SCI 个人 h-因子76，2019-2022年连续 4年位列科睿维安全球高被引学者，自 2019年起连续 4年被澳大利亚年度研究报告评为澳大利亚机械工程学科领军人物 , 2020年全球机械工程学科领军人物年及 2021年度澳大利亚结构工程学科领军人物 。 杨杰教授现任 Engineering Structures (JCR Q1)总主编 (Lead Editor-in-Chief)及 Mechanics Based Design of Structures and Machines Thin-Walled Structures, Mechanics of Advanced Materials and Structures, International Journal of Structural Stability and Dynamics, Journal of Composite Materials等多个 SCI学术期刊的编委 。
摘要信息：
Mechanical metamaterials with negative Poisson’s ratio (NPR), negative thermal expansion (NTE), etc. are of great significance in engineering applications. Majority of the metamaterials reported so far, however, are not materials but structures that are either mechanically weak or heavily reliant on specifically designed architecture/topology. Consequently, their metamaterial performance may be significantly deteriorated or even lost due to local structural deformation or failure under excessive external loading. Developing materials simultaneously possessing metamaterial characteristics and excellent mechanical properties poses a great challenge. This talk reports the latest development of a class of novel graphene origami-enabled mechanical metamaterials with a highly tunable NPR/NTE as well as improved mechanical properties. The research findings open a new avenue to develop graphene reinforced nanocomposite structures that are auxetic, light yet very strong.
