報告題目:
MECHANICALLY GUIDED, DETERMINISTIC THREE-DIMENSIONAL ASSEMBLY
報告人:黃永剛院士
講座時間:8月21日上午10點
講座地點:航空樓4樓機電學院會議室
承辦學院:機電學院
報告簡介:
Complex three-dimensional (3D) structures in biology (e.g., cytoskeletal webs, neural circuits, and vasculature networks) form naturally to provide essential functions in even the most basic forms of life. Compelling opportunities exist for analogous 3D architectures in human-made devices, but design options are constrained by existing capabilities in materials growth and assembly. We report routes to previously inaccessible classes of 3D constructs in advanced materials, including device-grade silicon. The schemes involve geometric transformation of 2D micro/nanostructures into extended 3D layouts by compressive buckling. Demonstrations include experimental and theoretical studies of more than 40 representative geometries, from single and multiple helices, toroids, and conical spirals to structures that resemble spherical baskets, cuboid cages, starbursts, flowers, scaffolds, fences, and frameworks, each with single- and/or multiple-level configurations.
報告人簡介:
黃永剛教授1984年獲北京大學學士,1990年獲哈佛大學博士。他是美國工程院院士(US National Academy of Engineering),歐洲科學與藝術院院士 (European Academy of Sciences and Arts),和歐洲科學院院士 (Academia Europaea)。他是全世界固體力學領域文章引用率最高的華人學者;是美國固體力學領域75歲以下科學院院士或工程院院士中文章引用率最高的學者;是二十年來(1998-2017)全世界固體力學領域文章引用率最高的學者。