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Materials Science and Nanotechnology | Volume: 03
WORLD CONGRESS ON SMART MATERIALS AND STRUCTURES
&
3
rd
International Conference on
POLYMER CHEMISTRY AND MATERIALS ENGINEERING
November 21-22, 2019 | Singapore
Joint event on
P
ipes are important infrastructures in modern cities.
Carrying gas, water and sewage wastes, pipes are
prone to defects as a result of aging and corrosive
environment. Detecting such defects in their early stages
is of vital importance so that any gas and water leakage
and subsequently disastrous explosions can be avoided.
Today, there is no commercially available system that
can effectively detect defects occurred in building pipes
especially when they are concealed in concrete wall.
Guided wave (GW) is a popular NDT method for detecting
corrosion occurred in pipes. Here, an innovative GW-based
sensor that employed smart materials for emitting desired
GW signals into a pipe and then receiving signals reflected
from any pipe defects has been designed. Different than
conventional piezoelectric transducers, which is time and
labour intensive to be mounted on inspected objects, a
new magnetostrictive sensor, which is embedded with
our invented flexible printed coil and a thin patch of smart
material, has been developed. Because the entire sensor is
made out of thin sheets, it can be easily wrapped around
any size of pipe. By employing smart material, which
has stronger magnetostrictive property, the GW energy
emitted by the sensor for detecting defects has been
significantly enhanced. Moreover, the smart sensor can be
applied to both metal and plastic pipes. Several field tests
were conducted in buildings using in-service gas pipes
that were partially covered by building walls. The results
prove that the smart sensor can reveal pipe defects and
corrosion even part of the pipe is covered by walls. Finally,
the current market available transduction systems was
found to be bulky and expensive. Hence a new, low-cost
and portable transduction system has been implemented
so that it can be workable on-site and inspects in-service
gas pipes that are installed in modern buildings.
Biography
Peter W Tse is a Fellow of American Society of Mechanical Engineers
and a Foundation Fellow of International Society of Engineering Asset
Management. He is the Associate Director of the Centre for Systems and
Informatics Engineering. He obtained his B.Eng. and
M.Sc.from Canada
and his Ph.D. from United Kingdom. He is a Chartered Engineer and a
Professional Engineer registered in UK and Canada. He is the committee
member of ISO’s Technical Committees (TC): TC108, TC135 and TC199. As
of today, his Scopus h-index 34 with 4,980 citations and Google Scholar
h-index is 39 with 6,830 citations. He has published over 460 articles in
various journals, proceedings, newspapers etc. Currently, his research
outcomes have been applied to over 30 local and international companies.
Recognized by the Council of Canadian Academies as the author of Top 1%
most highly cited papers in the related research field worldwide in year
2016.
e:
mepwtse@cityu.edu.hkPeter W Tse
City University of Hong Kong, Hong Kong
Novel design of a smart guided-wave-based sensor to enhance the
ability in detecting defects occurred in pipes
Mater Sci Nanotechnol, Volume: 03