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Smart Materials Congress 2019
Nano Research and Applications
ISSN: 2471-9838
Page 40
August 01-02, 2019
Dublin, Ireland
Smart Materials and
Structures
8
th
International Conference on
Nano Res Appl 2019, Volume 05
Next generation smart infrastructure using shape memory
alloys
M Shahria Alam
University of British Columbia, Canada
S
hape memory alloys (SMAs) are special materials
with a substantial potential for various structural
engineering applications. The novelty of such materials
lies in their ability to undergo large deformations and
return to their undeformed shape through stress removal
(superelasticity) or heating (shape-memory effect).
In particular, SMAs have distinct thermomechanical
properties, including superelasticity, shape-memory
effect, and hysteretic damping. These properties could
be effectively utilized to substantially enhance the safety
of civil infrastructures against seismic hazards. This
presentation examines the fundamental characteristics
of SMAs, the constitutive material models of SMAs,
and the factors influencing the engineering properties
of SMAs. Some of the potential applications of SMAs
in buildings and bridges are discussed, including the
reinforcement and repair of structural elements, and the
development of kernel components for seismic devices
such as piston based self-centering devices, dampers,
restrainers and isolators. The presentation synthesizes
existing information on the properties of SMAs, presents
it in concise and useful tables, and explains different
alternatives for the application of SMAs, which should
motivate researchers and practicing engineers to extend
the use of SMAs in novel and emerging applications.
shahria.alam@ubc.ca