Page 21 - ASME SMASIS 2017 Program

Symposia
AUXETIC MATERIALS AS MULTIFUNCTIONAL SMART MATERIALS:
MANUFACTURING, PROPERTIES AND APPLICATIONS
Changchun (Chad) Zeng
Associate Professor and Director of Graduate Studies Agricultural and Mechanical University (FAMU) – Florida State University
Department of Industrial & Manufacturing Engineering (FSU) College of Engineering. Dr. Zeng’s research are in the areas of
FAMU-FSU College of Engineering
Tallahassee, FL
Abstract
Auxetic materials (auxetics) are materials with negative Poisson’s ratios.
Contrary to almost all naturally occurring and synthetic materials, auxetic
materials expand when stretched and shrink when compressed.
Comparing to conventional materials auxetic materials exhibit many
desired properties, i.e., enhanced toughness, improved impact and
indentation resistance, bending stiffness and shear resistance, superior
shape conformity, optimal dynamics, acoustic and dielectric properties
etc. They have potentials in a diverse range of applications such as
protective equipment, biomedical devices such as prosthesis, structural
composites, damping and wave absorbing applications, smart and
anti-fouling filters, etc. This talk starts with the overview of the design
principle, manufacturing process and properties of auxetic materials. This
will be followed by a detailed discussion on the fundamentals on the
auxetic conversion mechanism, and the development of rapid, large -scale
manufacturing technology of auxetic polyurethane foams. Their
applications in protect sport equipment, prosthesis, and tissue
engineering will be illustrated. We finally discuss our effort on combing
auxetic foam technology with nanomaterials to manufacture
multifunctional smart materials to further expand their application
potentials.
Biography
Dr. Changchun (Chad) Zeng is currently Associate Professor in the
Department of Industrial & Manufacturing Engineering at Florida
innovative materials and advanced manufacturing technology, particularly
in multifunctional polymeric materials and polymer foams, and their novel
manufacturing process. Dr. Zeng’s research has been widely supported by
both industry and government agencies, and he has published extensively
in peer-reviewed journals including many in the topmost journals in the
areas of materials, nanotechnology, polymers, and composites research.
Professor Zeng is also the inventor of 12 pending/issued/licensed patents.
Dr. Zeng is a recipient of several awards including Florida State University
Developing Scholar Award, and the Research Excellence Award from
FAMU-FSU College of Engineering. He serves on the Board of Directors
of the Division of Thermoplastic Materials and Foams (TPM&F) of Society
of Plastic Engineers (SPE), the largest international professional society for
plastic materials. He served as the Topical Conference Chair (TPC) for the
2016 and 2017 Annual Technical Conference (ANTEC) of SPE. Dr. Zeng
received his PhD in Chemical Engineering from The Ohio State University,
and MS (Chemical Engineering) and BS (Polymer Engineering) from
Zhejiang University. He joined Florida State University 2007, after
spending two years as Senior Research Engineer at Hexcel Corporation, a
leading aerospace composites and carbon fiber manufacturer.
21