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【创源大讲堂】Origami and Kirigami-Fusion of Arts and Engineering:Deformable Electronics and Metamater报告通知
作者:杨卓然   日期:2017-06-04     点击数:111  

西南交通大学“创源”大讲堂研究生学术讲座

讲座时间:2017年6月5日(周一)上午 9:00

讲座地点:九里校区 行政楼二楼 力学报告厅

主 讲 人:Prof. Dr. Hanqing Jiang

简    历:Dr. Hanqing Jiang is a Professor in the Mechanical and Aerospace Engineering in Arizona state University. Dr. Jiang received PhD from Tsinghua University in 2001, majoring in Solid Mechanics. His current research interest is the integrated hard and soft material, specifically including origami electronics, lithium-ion batteries, and hydrogels. He has published 5 book chapters and over 100 peer-reviewed journal papers, including multi-disciplinary journals (Science, PNAS, Nature Communications), materials journals (Advanced Materials, Advanced Energy Materials). nano journals (Nature Nanotechnology, Nano Letters), physics journals (PRL, PRB, APL, JAP), and mechanics journals (JMPS, IJP. IJSS, JAM). Many of his papers are among the top cited papers in mechanics and/or mechanical engineering communities.

讲座题目:Origami and Kirigami-Fusion of Arts and Engineering:Deformable Electronics and Metamaterials

讲座内容:Origami and kirigami. creating three-dimensional structure from two-dimensional sheets through a process of folding along creased and cutting, has been transformed by mathematicians, scientists, and engineers to utilize the folded objects' deformability and compactness in applications ranging from space exploration to automotive safety, biomedical devices and extremely foldable and stretchable electronics. Notable progress has been made in the area of origami theory, particularly on methods and tools to design origami models and to understand folding and unfolding from a theoretical perspective. Among classes of origami patterns, a particular one, namely rigid origami, in which the faces between the creases remain rigid during folding /unfolding and only the creases deform, is different from most origami patterns that require face bending or partial crumpling to make many-step folds.
    This presentation consists of three parts. The first part deminstrates the fabrication of origami electronics that has superb flexible, stretchability and foldability. The fabrication processes here represent an example to utilize mainstream high-temperature processes to fabricate high-perfromance stretchable electronics. Three examples, namely origami solarcells, origami lithium ion batteries, and kirigami batteries will be presented. The second part describes mechanical metamaterials created by origami in terms of their basic geometric and stiffness properties, as well as load bearing capability. A periodic Miura-ori pattern and non-periodic Ron Resch pattern will be presented. Unexceptional coexistence of positive and negative Poisson's ratio are found are found for Miura-ori pattern, which are consistent with the interesting shear behavior and infinity bulk modulus of the same pattern. Unusually strong load bearing capability of the Ron Resch pattern will be discussed due to the unique way of folding. The third part presents the fabrication of microscale origami

主办:研究生院

承办:力学与工程学院  应用力学与结构安全省重点实验室