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Department of Mechanical Engineering Seminar

Speaker: Yonggang Huang, Ph.D.

Professor of Civil, Environmental, and Mechanical Engineering

Department of Mechanical Engineering

Northwestern University

 

January 7, 2016 | 10:00 AM | DeWalt Seminar Room, 2164 Martin Hall

Abstract: Complex, three dimensional (3D) structures in biology (e.g. cytoskeletal webs, neural circuits, vasculature networks) form naturally to provide essential functions in even the most basic forms of life. Compelling opportunities exist for analogous 3D architectures in manmade devices, but design options are constrained by existing capabilities in materials growth and assembly. Here we report routes to previously inaccessible classes of 3D constructs in advanced materials, including device-grade silicon. The schemes involve geometric transformation of two dimensional (2D) micro/nanostructures into extended 3D layouts by compressive buckling. Demonstrations include experimental and theoretical studies of more than forty 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.

Bio: Yonggang Huang is the Walter P. Murphy Professor of Mechanical Engineering, Civil and Environmental Engineering, and Materials Science and Engineering at Northwestern University. He is interested in mechanics of stretchable and flexible electronics, and mechanically guided, deterministic 3D assembly. He has published 2 books and more than 470 journal papers, including multi-disciplinary journals Science (2006, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015) and Nature (2008, 2013, 2016). His recent awards include the Larson Award in 2003, Melville Medal in 2004, Richards Award in 2010, and Drucker Medal in 2013 from ASME; Young Investigator Medal from the SES in 2006; International Journal of Plasticity Medal in 2007; Guggenheim Fellowship in 2008; and ISI Highly Cited Researcher in Engineering in 2009 and ISI Highly Cited Researcher in Materials Science in 2014 and 2015.



January 6, 2016


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