Transcript of The Ultrasonic Imaging Laboratory at UC Francesco Simonetti Ultrasonic Imaging Laboratory School of...
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- The Ultrasonic Imaging Laboratory at UC Francesco Simonetti
Ultrasonic Imaging Laboratory School of Aerospace Systems
University of Cincinnati http://www.ase.uc.edu/USIL Email:
f.simonetti@uc.edu, Tel.: (513) 556-3532
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- Sep. 1994 - Oct. 1999 Feb. 2000 Jan. 2001 Apr. 2001 Jan. 2004
Jan. 2004 July 2005 Aug. 2005 July 2010 June 2006 Current Feb. 2007
Mar. 2011 April 2011 Current MEng in Aeronautical Engineering Univ.
of Palermo, Italy Military service Italian Navy PhD Mechanical
Engineering Imperial College London Research Associate Imperial
College London Research Fellow Royal Academy of Engineering Faculty
Affiliate Los Alamos National Laboratory Assistant Professor
Imperial College London Associate Professor University of
Cincinnati Francesco Simonetti
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- The Laboratory Over 1200 Sqft, the Ultrasonic Imaging
Laboratory (USIL) was established in 2011 under the Ohio Research
Scholar Program. USIL is at the forefront of modern imaging
technology with the mission to develop the next-generation sensing
technology for applications in industry and medicine. Key focus
areas include: Integrated sensing technology for life-cycle
operation and management High-sensitivity and specificity damage
detection methods Earlier diagnosis of diseases
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- Core facilities In addition to standard equipment for basic and
applied research over the entire ultrasonic regime, the Lab has
state-of-the-art instrumentation including: Ultrasonic Microscope
for testing up to 300MHz 128-channel programmable controller to
drive array probes up to 20MHz Microwave Vector Network Analyser up
to 64GHz High resolution Infrared Camera Laser Doppler
Interferometer 24MHz bandwidth Computer workstation with 32 cores
and 256GB RAM
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- Research areas covered Ultrasonic imaging Conventional
beamforming Tomography Super-resolution imaging Augmented reality
Guided waves Ultrasonic Microwave Material Characterization
Mechanical properties Electromagnetic properties
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- Application areas covered NDE (Aerospace, Nuclear, Power, Oil
& Gas) CMC materials Austenitic steel castings Steel
manufacturing Structural Health Monitoring (Aerospace, Oil &
Gas) Fuselage skin Corrosion in pipelines Medical diagnostics
Breast cancer detection Needle biopsy Geophysics (Los Alamos
National Lab) CO2 sequestration monitoring Oil reservoir
imaging
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- People Over the past two years the Lab has supported five
graduate students, two undergraduates and one research associate
The current team members
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- Industrial support GE Aviation NDE methods for CMC materials
Vibration analysis of damping coatings Electric Power Research
Institute Ultrasonic inspection of austenitic steel Total
industrial support is $1.2 M over three years, with the main
sponsors being
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- The research activity ranges from the underpinning mathematical
and physical aspects of advanced sensing technology to the design
and testing of prototype systems. Theoretical modeling, numerical
simulations, and experiments are central to our work. Research
focuses on solving real problems Commercialization
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- An example: Corrosion depth monitoring It is estimated that the
direct cost of corrosion to industrialized countries represents a
significant proportion of the gross domestic product (GDP), with
some analysts suggesting that the cost of corrosion to the US alone
is as high as 3.1% of its GDP Depth monitoring is currently done
with hand-held probes Hand-held probes require direct access to the
corroded area Often access is limited due to physical obstacles or
remote location Guided ultrasonic waves enable remote inspections
Our solution is to combine guided wave technology with advanced
tomography algorithms
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- Pipe testing configuration Transmit and receive ring arrays of
guided ultrasonic wave transucers are used to inspect the full
section of pipe between the two rings. The transducers use a novel
design for superior thermal stability. First prototype Current
prototype
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- Advanced imaging algorithms We have translated our experience
in breast ultrasound tomography to corrosion monitoring.
Conventional Ultrasound X-ray CT Advanced Ultrasonics Simonetti et
al. App. Phys. Lett. 95 (2009) Simonetti et al. Med Phys. 36 (2009)
1460 1480 1500 1520 1540 1560 m/s
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- Advanced modelling algorithms Developed new physical models to
describe the interaction of ultrasonic guided signals with complex
shape defects in complex structures. These forward models are
integral parts of our imaging algorithms
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- Reconstructed wall thickness loss map X-axis [cm] Y-axis [cm]
Maximum Depth 0.76 mm -30-20-100102030 0 5 10 15 20 25 30 35 40 45
50 0 1 2 3 4 5 6 7 8 9 10 % of wall thickness With tomography we
provide point-by-point maps of wall thickness loss. The measurement
accuracy that we obtain is better than 1% of the wall
thickness
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- Innovation 1.Transducers: New non-contact transducer design
with higher sensitivity and stability 2.Control System: Custom made
electronics for the new transducer design 3.Software: Imaging
algorithm more advanced than those used in x-ray CT. We are
introducing a shift of paradigm in the field of NDE technology by
integrating advanced computing with ultrasonic hardware for the
first time.
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- Cincinnati NDE, Ltd. A start-up form the University of
Cincinnati that is targeting commercial applications in the oil and
gas, nuclear, and aerospace industries.
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- Ceramic Matrix Composites (CMC) CMC materials promise to
improve the efficiency and reduce the emission of jet engines.
Enabling aspects of CMC technology are Allows higher turbine
temperature Improves efficiency of thermodynamic cycle
Significantly lighter than superalloys Reduces or eliminates the
need for coolant
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- NDE of CMC at UC CMC materials are very different from other
aerospace materials and therefore require new NDE methods. At UC we
work closely with GE Aviation to develop the next generation NDE
technology for CMCs and the different aspects of the life cycle of
CMC components Quality Control CMC Substrate Coatings for CMC
Damage progression monitoring Room temperature High Temperature
In-service Inspections Module level Piece part level
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- Conclusions The research scholar award has been instrumental to
the creation of USIL USIL is helping local aerospace industries
developing innovative materials for jet engines Cincinnati NDE,
ltd. has been established as the first spin off from the research
at USIL USIL is training the next generation of NDE engineers