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Guan Zhongwei: Develop novel lightweight composite structures
发布日期:2018-08-07  字号:   【打印

报告时间2018年8月8日(星期三)10:00

报告地点:纬地楼414

  Zhongwei Guan, Professor(官忠伟,教授)

工作单位利物浦大学

举办单位:土木与水利工程学院

报告人简介

20180808-土木与水利工程学院-Zhongwei Guan.jpg

官忠伟教授1982年毕业于四川大学工程力学专业,1988-1990英国曼彻斯特大学机械工程系访问学者,1993年获英国布拉德福大学结构工程博士学位,1993-1994年布拉德福大学土木结构工程系博士后研究,1994-2005年布莱顿大学土木及环境系讲师,2005-今英国利物浦大学工程系高级讲师、教授。

官教授重点研究撞击和爆炸等极端载荷条件下的轻质复合材料结构。他正负责欧盟重大科研项目无胶木材建筑结构。他在国际期刊和会议上发表了250多篇关于复合材料结构、机械连接和聚合物结构的论文(其中SCI论文100余篇)。他是四川大学、华南理工大学、日本京都大学客座教授,《国际冲击工程杂志》编委,20多个国际会议的学术委员会成员。

报告简介

Novel lightweight composites increasingly find their applications in aerospace, automotive, marine and construction industry, due to their superior properties such as low weight to strength ratio, high energy absorption, flexible stacking sequence. In this talk, the following lightweight composite structures will be covered, i.e. (1) fibre metal laminates (FMLs), (2) PVC foam based sandwich structures, (3) corrugated cores, (4) SLM lattices, (5) egg box, (6) carbon fibre lattices and (7) high temperature TP prepreg. 

FMLs are multi-layered materials consisting of interleaved arrangements of metal and fibre-reinforced composites. They have a good blast/impact resistance. But their performance will differ, depending on the precise materials used, the ways in which they are interleaved, and the thickness of the various materials, orientation of the fibre, resin used, etc. FMLs are currently used in aerospace industry. Next generation of super-jumbo and super-sonic aircraft will require FMLs to have resistance to high temperature, fatigue and impact.

Novel lightweight PVC foam based sandwich structures are made from thin-skins and core with embedded composite tubes. The skin materials are usually made from high strength alloys, glass or carbon fibre reinforced composites, whilst the core is made from PVC foam with embedded composite or metal tubes. Such sandwich structures maximise compression resistance offered by material as well as restraints to composite tubes from the foam. Throughout optimised design on blast and impact resistance, this type of sandwich structures can be produced with the optimised energy absorption to weight ratio. The main advantages of such sandwich structures are: extremely light, superior energy absorption, low cost, high mobile ability, as well as variable combinations between the core and skins.

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