Title:Origami-inspired Mechanical Metamaterials: From Devices to Mechanics, from Robots to Metaverse
Time: 10:00-12:00, May 10th, 2023
Location: Meeting Room 604, Civil and Transportation Building
Speaker: Professor Jiang Hanqing (Xihu University)
All teachers and students are welcomed to attend.
College of Civil and Transportation
May 6th, 2023
Speaker's Biography:
Professor Jiang Hanqing, who received his Bachelor's degree in Engineering from Dalian University of Technology in 1996 and his Ph.D. in Solid Mechanics from Tsinghua University in 2001 under the guidance of the esteemed mechanic scholar Academician Huang Kezhi. From 2001 to 2006, he conducted postdoctoral research at the University of Illinois in the United States. In 2006, he was appointed as an Assistant Professor at Arizona State University, where he was promoted to Associate Professor in 2011 and then to Full Professor in 2016. In June 2021, he joined Xihu University as a Visiting Professor in the School of Mechanical Engineering. Professor Jiang Hanqing is an internationally renowned expert in the field of Solid Mechanics. Throughout his career, Professor Jiang has been engaged in theoretical and applied research on materials, mechanics, and multi-field coupling problems. He has made fruitful achievements in various fields, including nano-materials, flexible electronics, lithium batteries, the mechanical-electrochemical coupling effect, intelligent origami, and mechanical metamaterials. He pioneered and led the research on mechanical metamaterials and flexible electronics based on origami and kirigami techniques. He discovered and verified the stress-triggering mechanism of lithium dendrite nucleation and achieved stress release through soft materials to solve dendrite problems. In 2021, Professor Jiang Hanqing was awarded the Worcester Reed Warner Medal, the highest recognition in the field of mechanical engineering literature, by the American Society of Mechanical Engineers (ASME), in recognition of his groundbreaking work in the field of soft-based/hard-film research. He has led more than 30 research projects funded by the National Science Foundation and other organizations, with a total funding of over 5 million dollars. He has published over 150 academic papers in internationally renowned journals such as Science, Nature, PNAS, with nearly 20,000 citations in SCI, and an H-index of 67. He has been granted 36 invention patents in the United States and other countries. In 2016, Professor Jiang was elected as a Fellow of the American Society of Mechanical Engineers (ASME), and in 2022, he served as the Chairman of the Society of Engineering Science (SES). He currently serves as a committee member of the Materials Division, ASME (and will serve as the chairman in 2025), and also holds editorial and editorial board positions in several international academic journals, including Extreme Mechanics Letters and Research (AAAS/Science Partner Journal), among others.
Abstract of the Report:
Origami, as a paper folding art, is being transformed by scientists, mathematicians, and engineers into an innovative design methodology to harness the unique structural properties inherent in the folding process. Thus, origami itself can be considered as a mechanical metamaterial, where the mechanical performance (e.g., stiffness) of origami structures primarily relies on the arrangement of creases. In this report, I will review a series of works conducted by our research group since 2014, covering topics ranging from flexible electronics based on rigid origami, to the design of truss structures inspired by deformable origami for on-demand unfolding and folding with high load-bearing capacity. We will discuss the transition from straight-line origami to curved-crease origami, with a focus on deformation origami introduced by curved creases, encompassing full stiffness control ranging from negative, zero, to positive stiffness. In the final section, we will explore the application of the diverse deformation patterns offered by origami in fabricating origami robotic arms and achieving in-situ adjustable active mechanical touch sensations in metaverse applications using curved-crease origami. These studies pave the way for designing origami mechanical metamaterials with multiple applications.
