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Plenary
Lecture
On Gradient Deformation and Flow Theories:
From Macro and Meso Scales to Nano and Astro Scales
Professor
Elias C. Aifantis
Laboratory of Mechanics and Materials
Polytechnic School
Aristotle University of Thessaloniki, Thessaloniki
GR-54124, GREECE
and
Center for Mechanics of Material Instabilities and
Manufacturing Processes
College of Engineering
Michigan Tech University
Houghton, MI 49931, USA
E-Mail:
mom@mom.gen.auth.gr
Abstract:
G
radient
theories for elasticity, plasticity and dislocation
dynamics have been advanced by the author and his
co-workers to address deformation and flow at various
scales at macro, micro and nano regimes. It was shown
that instabilities, pattern formation and size effects
may be conveniently described, whereas classical
continuum theories fail to do so. The theory is now
extended to describe coupled physicochemical and
electromagnetic processes under applied or internal
stress across the scale spectrum within a multiphysics
framework. A number of examples of interest to current
technology, physical science and biology are discussed.
Brief
Biography of the Speaker:
E. C. Aifantis is a Professor of Mechanics
at the Aristotle University of Thessaloniki, Hellas, and
a Distinguished Research Professor of Engineering at
Michigan Technological University, USA. For the last 10
years he has been coordinating a European
Research/Training Network, sequence on Material
Instabilities in Deformation and Fracture involving a
number of leading European Laboratories (e.g. Cambridge,
Delft and 5 more) with a total of about $5 million. Most
recently a European Research Council (ERC) Starting
Grant recipient (K. Aifantis) funded with 1.13 million Euros decided to conduct her research in his laboratory
(Physics Today - April 2008 issue, pp. 30-31, BBC -
http://news.bbc.co.uk/2/hi/science/nature/7264828.stm;
Science Careers -
http://sciencecareers.sciencemag.org). Moreover, two
EU International Incoming Fellowships of 200 kEuros each
were awarded (A. Romanov/Ioffe Physicotechnical
Institute, Russia, and N. Kioussis/California State
University, USA). He is also a co-PI of a NIRT NSF
Program on Nanomechanics of Polymeric and Biological
Nanofibers with a total budget exceeding $1 million. He
has published over 450 papers, edited 12 books,
organized numerous international conferences, and has
been invited as keynote speaker on various occasions. He
is an Editor of the Journal of Mechanical Behavior of
Materials, Honorary Editor of Computer and Experimental
Simulations in Engineering and Science, on the
Advisory/Editorial board of Numerical and Analytical
Methods in Geomechanics, Open Mechanics Journal, Journal
of Nano Research, Acta Mechanica (formerly), Mechanics
of Cohesive-Frictional Materials (formerly). In June
2005 in the joint ASME/ASCE/SES Mechanics and Materials
Conference in Baton Rouge, a Symposium was held honoring
his contributions in gradient theory, dislocation
patterning and material instabilities.
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