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智慧基础设施新万博代理怎么申请:Mechanical and high velocity impact behavior of a new hybrid fibre reinforced cementitious composite

报告题目:Mechanical and high velocity impact behavior of a new hybrid fibre reinforced cementitious composite

主讲人:Yixia (Sarah) Zhang,新南威尔士大学

报告时间:2018年11月22日(星期四)下午2:00

地点:土木与交通学院  309会议室

专家介绍

Dr. Zhang is recently promoted to be an Associate Professor in the University of New South Wales, Australia. She has been working in UNSW Canberra for 11 years as an academic and has been the Civil Engineering Undergraduate Program Coordinator for two years. She obtained her Bachelor degree on Engineering Mechanics and Master degree on Solid Mechanics from Tianjin University in 1992 and 1995 respectively, and PhD on Structural Engineering from the University of Hong Kong in 2001.

Dr. Zhang has a strong expertise in Computational Mechanics and advanced numerical methods and modelling techniques. Her research areas includes the characterization of material and structural behaviour using advanced numerical modelling and experimental technique. Her research interest in recent years is on advanced materials and novel application of advanced material in structures. Since 1998, she has published over 200 peer-reviewed scholarly research papers including more than 80 research papers published in top leading international journals in her research areas. She was awarded the Spitfire Defence Memorial Fellowship in 2011 and was received by the Australian Governor in General for her research on impact-resistance construction material. She has been awarded over 30 research grants with over 1.5 million Australian Dollars. She is a chief investigator of the ARC research hub for Nanoscience-based Construction Material Manufacturing which was awarded an ARC funding of $5 million. She has supervised 9 PhD students and 1 Master student to completion as a primary supervisor. She is leading a research team of 12 researchers at the moment. She has served as local organization committee and international technical committee member or advisory board member for over 10 international conferences. She has been a frequent reviewer for up to 20 leading international journals..

报告内容

A new hybrid fibre reinforced engineered cementitious composite (ECC) containing steel fibre and polyvinyl-alcohol fibre is developed to achieve an enhanced resistance to high velocity impact in this research. The material properties of the new ECC material including the compressive strength, modulus of elasticity, modulus of rupture and tensile strength under loading with varying strain rate are investigated experimentally. High velocity impact tests are conducted on ECC panels to study the impact resistance of the new material subjected to hard projectiles using gas gun facilities and also to in-service bullets fired from a real rifle in military field. Ballistic tests of panels made of high strength concrete, steel-reinforced concrete and 2% volume steel fibre reinforced concrete are also conducted for comparison of the impact resistance capability. The impact test results demonstrate the significantly enhanced impact and shatter resistance of the new hybrid ECC mix.

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