Page 20 - ASME SMASIS 2017 Program

Symposia
PIEZOELECTRIC NANOWIRES FOR ENERGY HARVESTING
Henry A. Sodano
Professor
Department of Aerospace Engineering
Department of Materials Science and Engineering
Department of Macromolecular Science and
Engineering
University of Michigan
Ann Arbor, MI
Abstract
Nano electromechanical systems (NEMS) developed using piezoelectric
nanowires (NWs) have gained an immense interest in energy harvesting
applications as they are able to convert different forms of mechanical
energy sources into electric power and thereby function as reliable power
sources for ultra-low power wireless electronics. While progress has been
rapid, most technologies have focused on intrinsic piezoelectric materials,
whereas ferroelectric materials offer higher electromechanical coupling.
In this presentation, new techniques for the synthesis of ferroelectric
nanowires and their application to energy harvesting devices will be
discussed. In addition to NEMS devices the development of
multifunctional materials, which seek to combine multiple material
behaviors or properties into a single component will be presented with
focus on the development of materials with embedded energy harvesting.
The ultimate goal for multifunctional materials is to not only consolidate
systems, but also simultaneously improve the behavior in each use. The
creation of such a material would yield a paradigm shift and open clear
pathways to the acceptance of this new class of materials. This talk will
discuss a methodology utilizing functional nanowires to yield new
materials with the potential to achieve this goal.
Biography
Dr. Sodano is a Professor in the Aerospace Engineering Department at the
University of Michigan with appointments in the Materials Science and
Engineering and Macromolecular Science and Engineering Departments.
His research lies in advanced materials with focus on composite materials,
multifunctional materials, additive manufacturing, ceramics and
nanotechnology. He received his Ph.D. in Mechanical Engineering from
Virginia Tech in 2005, his M.S. in 2003 and his B.S in 2002 also from
Virginia Tech. He has published 220 technical articles (6 book chapters,
106 refereed journals published or submitted and 108 proceedings) and
made over 100 international presentations including his selection for a
presentation at the National Academy’s 2008 German-American Frontiers
of Engineering Symposium. He currently serves as an associate editor of
four journals and was awarded the NSF CAREER award in 2009, the
American Society of Composites Young Researcher Award in 2012, the
ASME Gary Anderson Award for Early Career Achievement in 2009,
Virginia Tech’s 2010 Outstanding Recent Alumni Award, Arizona State
University’s 2009 Faculty Achievement Award in Research Excellence,
NASA Tech Brief Awards in 2010 and 2014, and was inducted into Virginia
20 Tech’s Academy of Engineering Excellence in 2010.
SYMPOSIUM 8
DESIGN WITH TOPOLOGY OPTIMIZATION
H. Alicia Kim
Professor in Structural and Material Optimization
Department of Structural Engineering
University of California, San Diego
La Jolla, CA
Abstract
Topology optimization is able to provide unintuitive and innovative design
solutions and a performance improvement (e.g. weight savings) in excess
of 50% is not uncommonly demonstrated in a wide range of engineering
design problems. With the rise of advance materials and additive
manufacturing, topology optimization is attracting much attention in the
recent years. This presentation will introduce some of the latest
developments in topology optimization. They will include the recent
advances in decades-long challenge problems in topology optimization
such as traditional stress constraints as well as the multiscale design
optimization breaking down the barrier between material and structural
designs. I will also discuss the latest efforts in topology optimization for
multidisciplinary design problems, i.e. aeroelastic wing. These efforts
represent a pathway to applying topology optimization for complex
multiphysics multifunctional structures, which may be too complex to rely
on designers’ intuition. The presentation will end with the vision for future
engineering design where complex coupled multiscale and multifunctional
system designs are assisted and enabled by topology optimization.
Biography
Dr. H. Alicia Kim is Professor in Structural and Material Optimization in the
Structural Engineering Department of the University of California, San
Diego. Her interests are in level set topology optimization, multiscale and
multiphysics optimization, modeling and optimization of composite
materials and multifunctional structures. She has published nearly 200
journal and conference papers in these fields including award winning
papers at the AIAA conferences and World Congresses on Structural and
Multidisciplinary Optimization and she is a Review Editor for the Structural
and Multidisciplinary Optimization journal. She holds a Personal Chair at
Cardiff University in the UK and is an affiliate of the Los Alamos National
Laboratory. Her research in topology optimization began in the 90’s at the
University of Sydney, Australia where she developed one of the first
boundary based topology optimization methods. She continued her
research at the University of Warwick and the University of Bath, UK
before moving to the USA in 2015.