Speaker: Prof. Jingsong Leng（School of Astronautics Harbin Institute of Technology）

Chair Person: Prof. Huiling Duan

Date: Nov. 24, 2015, 10:00-11:30

Place: Room 434 COE Building of Dept. Mechanics

Report Introduction:

Stimulus responsive materials, being defined as a kind of materials, with the capability of sensing and actuating, are exposed to changing environmental conditions. In recent years, a wide range of novel stimulus responsive materials have been developed, such as shape memory polymer (SMP) and their composites. This presentation describes the synthesis and characterization of novel styrene-based, epoxy-based, cyanate ester-based, polycaprolactone-based, bismaleimide-based, polyurethane-based SMPs, and SMP composites (SMPCs) which are filled with nickel chains, short carbon fibers, carbon nanotube chains, carbon nanopapers and so on. Meanwhile, the SMP activation approaches that contain heat, electricity, light, magnetic field, microwave, water, and solvent approaches, have been introduced. An overview of the recent progress of SMPCs used in space deployable structures is also presented. Some constitutive models are established to describe the viscoelastic behaviors of SMP and post bucking behaviors of SMPCs. In addition, some other activities in our group including electroactive polymers multifunctional nanocomposites, carbon nanopaper and applications, structural health monitoring, will also be proposed in this talk.
 

About Speaker:
　　Prof. Jinsong Leng is Cheung Kong Chair Professor. His research interests include Sensors & Actuators, Stimulus Responsive Polymers, Multifunctional Nanocomposites, Active Vibration Control, Structural Health Monitoring, Active Morphing Structures, etc. He has published over 200 scientific papers, 8 books/chapters, 30 issued patents, and invited to deliver more than 20 Plenary/Keynote Talks at International Conferences, Universities and Research Institutions, He has served as: Editor in Chief of International Journal of Smart and Nano Materials (Taylor & Francis, UK), Associate Editor of Smart Materials and Structures (IOP, UK), Associate Editor of Journal of Intelligent Materials Systems and Structures (SAGE, UK). Prof. Leng has been elected as an Executive Council Member of the International Committee on Composite Materials (ICCM), Fellow of SPIE, Fellow of IOP (Institute of Physics), Fellow of RAeS (Royal Aeronautical Society), etc.