Seminar on Shape Memory Composites and 4D Printing: From Materials, Structures to Applications
Prof Jinsong Leng Academician of Chinese Academy of Sciences Harbin Institute of Technology, China This seminar will be chaired by A/P Du Hejun. |
| Seminar Abstract |
Shape memory polymers (SMPs) and their composites (SMPCs) can change shapes or sizes when exposed to an external stimulus. Owing to the advantages including fast response, lightweight, long lifetime, low cost, high resilience, and easy processing, SMPs are promising materials for smart materials and structures in various areas. With the addition of time as the fourth dimension, the 4D printing technology allows the fast development of “living” adaptable structures that enables growth opportunities in aerospace, medical science, and other applications. Our group is focusing on the advanced 4D printing of SMPs and SMPCs. We have developed a series of 4D printed SMPs and SMPCs structures including a tracheal stent, vascular stent, bone stent, and space deployable structures, showing the shape morphing in response to environmental changes. 4D printed structures are capable of remote actuation with magnetic and electricity filed by incorporating of functional fillers in defined regions. Multistage, reversible, programmable structures are also 4D printed and systematically investigated. Moreover, 4D printing technology is developing and will lead to revolutionary in several important fields. Furthermore, many opportunities and challenges in smart materials and structures are addressed. |
| Speaker’s Biography |
Jinsong Leng is a Member of Chinese Academy of Sciences, Dean of School of Future Technology, Director of the Center for Smart Materials and Structures (CSMS), and Director of International Center for Applied Mechanics at Harbin Institute of Technology (HIT), China. His research fields include smart materials and structures, sensors and actuators, stimulus-responsive polymers (shape memory and electro-active polymers) and their composites, multifunctional nanocomposites, 4D printing, space deployable structures, etc. He currently serves as Vice President of the International Committee on Composite Materials (ICCM), Vice President of the Chinese Society for Composite Materials (CSCM), Vice President of Chinese Society of Aeronautics and Astronautics (CSAA), and Editor-in-Chief of the International Journal of Smart and Nano Materials (IJSNM). He was elected as the Foreign Member of Academia Europaea, Member of the European Academy of Sciences and Arts, Fellow of American Association for the Advancement of Science (AAAS), Fellow of the Society of Photo-Optical Instrumentation Engineers (SPIE), Fellow of Institute of Physics (IOP), Fellow of Royal Aeronautical Society (RAeS), Fellow of Institute of Materials, Minerals, and Mining (IMMM) and Associate Fellow of American Institute of Aeronautics and Astronautics (AIAA). He has published over 390 peer-reviewed papers and holds over 140 issued patents. |