题 目：Functionally Graded Graphene Reinforced Polymer Nanocomposite Structures /功能梯度石墨烯增强复合材料结构
时 间：2017年12月11日15：00-17：00
地 点：七号楼2楼报告厅
报告人：澳大利亚皇家墨尔本理工大学 Jie Yang(杨杰) 教授
欢迎广大师生参加
土木与交通学院
2017年12月5日
报告人简介：
杨杰，男，澳大利亚国籍， 2002年获上海交通大学固体力学博士，2002-2004为澳大利亚昆士兰大学博士后，2004-2007年任香港城市大学研究员，讲师，2007至今在澳大利亚皇家墨尔本理工大学任教现为机械与汽车工程系教授，博士生(后)导师。杨杰教授的主要研究领域为复合材料结构力学、先进功能梯度复合材料结构、新型石墨烯／碳纳米管非均匀增强复合材料，结构动力学特性与稳定性、结构非线性力学行为、微／纳米力学、微／纳米机电元器件、智能材料结构控制、梯度多孔介质结构力学性能、热机电多场耦合系统并在上述领域取得了一系列国际公认的研究成果，已发表SCI论文151篇，国际会议论文60篇。论文总计他引4300余次(SCI统计源)，个人SCI h-index为42, 其中9篇为ESI高被引论文.杨杰教授现为Engineering Structures (JCR一区)副主编及另外6个国际杂志编委并任美国土木工程师协会ASCE(American Society of Civil Engineers)结构稳定专业委员会委员。自2013年至今任32个国际学术会议的International Steering Committee和International Advisory Committee委员和分会主席并受邀为澳大利亚国家研究基金局、新加坡及香港特别行政区研究基金局评审专家。他同时受邀为90余本国际杂志的审稿人。
报告摘要：
Graphene and its derivatives such as graphene nanoplatelets (GPLs) are widely used as reinforcing nanofillers to develop high performance polymer nanocomposites with significantly improved mechanical properties by making use of the extraordinary properties of graphene reinforcements while keeping the beneficial attributes of polymers such as large deformation, stretchability, and good chemical/biological compatibilities. Functionally graded materials (FGMs) are characterized by smooth and continuous change in both material composition and mechanical properties to simultaneously meet different performance requirements. Introduction of FGM concept into graphene based nanocomposites in which graphene nanofillers are non-uniformly dispersed in the matrix provides a wealth of opportunities for the development of novel functionally graded graphene reinforced polymer composites with tremendous potential applications in various engineering sectors. This talk deals with (i) the modified micromechanics model and molecular dynamics simulation for the determination of effective thermo-mechanical material properties, and (ii) thermo-mechanical behaviours of functionally graded GPL reinforced polymer composite structures, with a particular focus on the effects of GPL weight fraction, distribution pattern, geometry, and vacancy defects on the thermo-mechanical performance of such structures.
