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Keynote and Plenary Lectures

IDETC/CIE/AM3D

Tuesday, August 23
Time: 9:00am–10:40am
Location: 213BC, Meeting Level

Massimo Ruzzene

D. Guggenheim School of Aerospace Engineering,
G.W. Woodruff School of Mechanical Engineering

Georgia Institute of Technology
Atlanta, GA

Multifield Interactions for Programmable Metamaterials

Abstract: Metamaterials consist of engineered microstructural assemblies
that exhibit superior properties in comparison to less composed or natural-
ly occurring materials. Their unusual wave properties include bandgap
behavior, response directionality, left-handedness, and negative acoustic
refraction, among others. These features, and their application for the
design of acoustic filters, waveguides, logic ports, and ultrasonic
transducer arrays motivate the investigation of elastic wave propagation in
microstructured media and architecture materials. The seminar illustrates
the properties of metamaterials featuring periodic arrays of electrome-
chanical resonators. Tunable local resonating systems exploiting
piezoelectric coupling are investigated to achieve strong wave attenuation
at desired frequencies, to guide waves along desired paths, and to
challenge the notion of nonreciprocity in wave motion. These concepts
can be applied for vibration reduction and noise control, and as part of
surface acoustic wave devices capable of isolator, gyrator, and circula-
tor-like functions on compact acoustic platforms.

Biography: Massimo Ruzzene is a Professor in the Schools of Aerospace
and Mechanical Engineering at Georgia Institute of Technology. He
received a PhD in mechanical engineering from the Politecnico di Torino
(Italy) in 1999. He is author of two books, 135 journal papers, and about 170
conference papers. He has participated as a PI or co-PI in various research
projects funded by the Air Force Office of Scientific Research, the Army
Research Office, the Office of Naval Research, NASA, the U.S. Army, U.S.
Navy, DARPA, the National Science Foundation (NSF), as well as compa-
nies such as Boeing, Eurocopter, Raytheon, Corning, and TRW. Most of his
current and past research work has focused on solid mechanics, structural
dynamics and wave propagation with application to structural health
monitoring, metamaterials, and vibration and noise control. Ruzzene is a
Fellow of ASME, an Associate Fellow of AIAA, and a member of AHS and
ASA. He is also the program director for the Dynamics, Control and
System Diagnostics Program of CMMI at the National Science Foundation.

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