Prof. Jinson Leng, Ph.D. (Harbin Institute of Technology)
170 College Street, Mining Building
MB101 at 11 AM
Abstract: Stimuli responsive polymers and composites are capable of changing shapes or sizes when subjected to an external stimulus, including heat, electric and magnetic field, solution and light, etc.. This special feature makes them the promising materials for sensors and actuators, which have broad application potentials in the future. Stimuli responsive polymers and composites also have many advantages, including fast response, long lifetime, high resilience, light weights, stretchable, low cost and easy processing. Moreover, they can also deliver active properties and autonomic responding.
This talk will mainly focus on recent progresses in mechanical theories, materials development, and applications of stimuli responsive polymers and composites in Harbin Institute of Technology (HIT). We have synthesized several kinds of shape memory polymers (SMPs), with broad glass transition temperature ranges, and SMP composites enhanced by carbon fibers, nickel chains, carbon nanotube chains, carbon nanopaper, and so on. Moreover, a great deal of work has been done on the actuation of SMPs and SMP composites subjected to stimuli like heat, electricity, magnetism, light, microwave, water and solution. Multiple shape memory effect, multistage stimulus, selective actuation and reversible actuation were also systematically investigated. Other interesting research in HIT will also be introduced, including mechanical models and stability analysis of dielectric elastomers, development of multifunctional nanocomposites and devices, deployable and morphing structures and their applications in aerospace, applications of smart mandrels, soft robotics, 4D printing, structural health monitoring, active vibration control, and so on.
Brief Biography: Prof. Jinsong Leng is Cheung Kong Chair Professor and Director of the Center for Smart Materials and Structures at Harbin Institute of Technology (China). He has also been recognized as Research Giant of University of Southern Queensland (Australia) and served as Honorary Professor of Kingston University London (UK). His researches cover Sensors and Actuators, Stimulus Responsive Polymers (Shape Memory and Electro-Active Polymers) and their composites, Multifunctional Nanocomposites, Active Vibration Control, Structural Health Monitoring, and Active Deployable or Morphing Structures.
Prof. Leng has authored or co-authored more than 290 scientific papers, 10 books/chapters and 40 issued patents. Some of his excellent publications have been selected as the Highly Cited Papers, Highlights, Cover Articles, Best ASME Papers, Hottest Articles, and so on. Moreover, he has presented more than 20 Plenary/Keynote talks, including SPIE Smart Structures/NDE, ICCM, ASME McMat, ACCM, ICCS, ICAST, and ICCE. He has been served as Chairman of Asia-Pacific Committee on Smart and Nano Materials (APCSNM), Editor in Chief of International Journal of Smart and Nano Materials, Associate Editor of Smart Materials and Structures, Journal of Intelligent Materials Systems and Structure and elected as an Executive Council Member of International Committee on Composite Materials (ICCM), Fellow of SPIE, IOP, RAeS, IMMM and Associate Fellow of AIAA.