E-Book of Abstracts, 41st Annual Review of Progress in Quantitative Nondestructive Evaluation ...

429 Pages·2014·2.38 MB·English

E-Book of Abstracts
41st Annual Review of Progress in Quantitative
Nondestructive Evaluation Conference
Boise Centre
Boise, Idaho
July 20-25, 2014
Organized by
Center for Nondestructive Evaluation
Iowa State University
In cooperation with
American Society for Nondestructive Testing
National Science Foundation Industry/University
Cooperative Research Centers
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2014 Review of Progress in Quantitative NDE Program SummaryBoise Centre -Boise, Idaho 8:30 9:00 10:10 11:00 12:10 1:00 2:00 3:10 4:00 5:00 6:00 7:00 8:00 9:0ampmBreak Break Two Day Short Course“Imaging in NDE Methods”Sponsored by World Federation of NDE CentersOrganizer: Prof. U. Ewert from BAM in Berlin, GermanyLocation: Salmon/Snake with lunch in Payette Welcome Reception Conference check-in and registrationWorld Federation of NDE CentersMeadowTwo Day Short CourseMeadowConference check-in and registration7:00 -9:00 pm(9:15 am-5:30 pm each day)2:00-6:00 pm and 7:00-9:00 pm2:00-6:00 pm and 7:00-9:00 pm Plenary 1: Dr. Alfred Hero and3. Guided Waves I –PeregrinesBy InvitationDr. NicoF. Declercq4. Thermography –Cottonwoods-FirsWorld Federation of NDE CentersPlenary 2: Dr. Mathias Fink and Board Meeting/Buffet Dinner5. Additive Manufacturing I –Pines-WillowsLDr. Ivan Pelivanov6. Electromagnetics Eddy Current –Salmon-SnakeHawk (8:45 am-12:15 pm) 11. Student Poster 7. Phased Arrays I –Peregrines12. Phased Arrays II –PeregrinesUCompetition; Guided Waves, QNDE Conference Dinner13. THz NDE –Salmon-Snake8. Civil Structures & Concrete –Pines-WillowsSurface Waves, Fundamentals,Eagle14. Nuclear Reactors I –Cottonwoods-Firs9. Radiography I –Cottonwoods-FirsNDE Sensors and Systems15. Additive Mfg. II –Pines-WillowsSocial Reception at 6:30 pmN10. Noncontact and Optical –Salmon-SnakeHawkDinner at 7:00 pm 16. Guided Waves II-Modelling –Peregrines20. Guided Waves III –PeregrinesC17. Nuclear Reactors II –Cottonwoods-Firs21. Composites I –Pines-Willows18. Uncertainty/Reliability of NDE –Pines-Willows22. Microstructure –Cottonwoods-FirsBy InvitationCNDE Sponsor Receptio19. Nonlinear Ultrasonics–Salmon-Snake23. Structural Health Monitoring –Salmon-SnakeH28. Posters: Ultrasonic 24. Materials Characterization –Peregrines29. Radiography II –Cottonwoods-Firs5K FUN RUNCharacterization, Ultrasonics, 25. Laser Ultrasonics–Cottonwoods-Firs30. Signal Processing –PeregrinesMaterials Characterization, 6:30 pm26. Composites II –Pines-WillowsSignal Processing, Advanced31. Robotics –Pines-Willows Boise River GreenbeltMaterials, Composites27. Modelling –Salmon-Snake32. Nonlinear –Salmon-SnakeHawk33. Composites III –Cottonwoods-Firs34. Benchmark –Pines35. UT Measurements –Willows36. Eddy Current –Salmon-SnakeConference Adjourns at 10:30 am
y
SaturdayJuly 19 SundayJuly 20 MondayJuly 21 TuesdayJuly 22 WednesdaJuly 23 ThursdayJuly 24 FridayJuly 25
MONDAY

Plenary Session 1 ........................................................... 1
Plenary Session 2 ........................................................... 1
Session 3 – Guided Waves I ........................................... 6
Session 4 – Thermography ........................................... 17
Session 5 – Additive Manufacturing I ............................ 28
Session 6 – Electromagnetics Eddy Current ................. 36
MONDAY AFTERNOON, JULY 21, 2014

These grid pages are provided for planning purposes. As you go through the program
to decide which talks/sessions you would like to attend, you can mark them on this grid
for a one shot look at where you would like to go and when on each day of the
conference.

Session 6
Session 3 Session 4 Session 5
Electromagnetics
Guided Waves I Thermography Additive Manufacturing I
Eddy Current
Peregrines Cottonwoods-Firs Pines-Willows
Salmon-Snake
1:30
PM
1:50
2:10
2:30
2:50
3:10
COFFEE BREAK
3:30
3:50
4:10
4:30
4:50
5:10
5:30
ADJOURN
Plenary Sessions 1 and 2
Boise Centre
Boise, Idaho
July 20 – 25, 2014

PROGRAM

Monday, July 21, 2014

PLENARY SESSION 1
Leonard J. Bond, Chairperson
Hawk

8:45 AM Opening Remarks
---Leonard J. Bond, Iowa State University, Center for NDE, Applied Sciences Complex II, 1915
Scholl Road, Ames, IA 50011

Welcome to Boise
---Harold Blackman, Associate Vice President for Strategic Research Initiatives for the Division of
Research and Economic Development, Boise State University, 1910 University Drive, Boise, ID
83725

9:00 AM Sparsity Regularized Image Reconstruction
---Alfred Hero, University of Michigan, 1301 Beal Street, Ann Arbor, MI 48109-2122

9:50 AM Ultrasonic Imaging of Materials Under Unconventional Circumstances
---Nico Felicien Declercq, G. W. Woodruff School of Mechanical Engineering, Georgia Institute of
Technology, Atlanta GA & UMI Georgia Tech – CNRS 2958, Georgia Tech Lorraine, Metz, France

10:25 AM Break

PLENARY SESSION 2
Dale E. Chimenti, Chairperson
Hawk

10:40 AM Acoustic Imaging with Time Reversal Methods: From Medicine to NDT
---Mathias Fink, Institut Langevin, Ecole Supérieure de Physique et de Chimie Industrielles de la Ville
de Paris, 1 rue Jussieu, Paris, 75005, France

11:30 AM Non-Destructive Evaluation of Fiber-Reinforced Composites with a Fast 2D Fiber-Optic
Laser-Ultrasound Scanner
---Ivan Pelivanov1,2, Jinjun Xia1, C.-W. Wei1, Matthew O’Donnell1, Takashi Buma3, 1Departments
of Bioengineering, University of Washington, Seattle, WA; 2International Laser Center, Moscow
State University, Moscow, Russian Federation; 3Union College, Schenectady, NY 12301

12:15 PM Lunch

Please Note: The bolded authors throughout this program indicate the presenting author.
Also, 40 minute opening presentations are bolded in blue.
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MONDAY, PLENARY SESSION 1
9:00 AM

Sparsity Regularized Image Reconstruction
---Alfred Hero, University of Michigan, 1301 Beal Street, Ann Arbor, MI 48109-2122

---Image reconstruction is an inverse problem that is often under-constrained due to
insufficient number of projections, high noise, or uncertainties in the forward operator. In
such cases one must regularize the problem by constraining the image or the
uncertainty in the forward operator. Smoothness and sparsity constraints are often
used to accomplish the needed regularization. This presentation will cover the concepts
underlying sparsity constrained image reconstruction in the context of sub-surface
microscopy and related applications.

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MONDAY, PLENARY SESSION 1
9:50 AM

Ultrasonic Imaging of Materials Under Unconventional Circumstances
---Nico Felicien Declercq, G. W. Woodruff School of Mechanical Engineering, Georgia
Institute of Technology, Atlanta GA & UMI Georgia Tech – CNRS 2958, Georgia Tech
Lorraine, Metz, France

---“Ultrasonic Imaging of materials” covers a wide technological area with main purpose
to look at and to peek inside materials. In an ideal world one would manage to examine
materials like a clairvoyant. Fortunately this is impossible hence nature has offered
sufficient challenges to mankind to provoke curiosity and to develop science and
technology. Here we focus on the appearance of certain undesired physical effects that
prohibit direct imaging of materials in ultrasonic C-scans. Furthermore we try to make
use of these effects to obtain indirect images of materials and therefore make a virtue of
necessity. First we return to one of the oldest quests in the progress of mankind: how
thick is ice? Our ancestors must have faced this question early on during migration to
Northern Europe and to the America’s and Asia. If a physicist or engineer is not
provided with helpful tools such as a drill or a device based on ultrasound, it is difficult to
determine the ice thickness. Guided waves, similar to those used for nondestructive
testing of thin plates in structural health monitoring can be used in combination with the
human ear to determine the thickness of ice. To continue with plates, if an image of its
interior is desired high frequency ultrasonic pulses can be applied. It is known by the
physicist that the resolution depends on the wavelength and that high frequencies
usually result in undesirably high damping effects inhibiting deep penetration into the
material. To the more practical oriented engineer it is known that it is advantageous to
polish surfaces before examination because scattering and diffraction of sound lowers
the image resolution. Random scatterers cause some blurriness but cooperating
scatters, causing coherent diffraction effects similar to the effects that cause DVD’s to
show rainbow patterns under sunlight, can cause spooky images and erroneous
measurements of material properties. However when properly understood, diffraction
effects, for instance if one has no other options but to work with frequencies that are
fortuitously very effectively diffracted by the surface structure of a material under
investigation, can be used to obtain high contract images or to obtain information that
would normally be hidden from standard C-scan techniques. Similar contrast
enhancement is also obtained for oblique C-scans of composites. The presentation will
further focus on non-conventional uses of conventional techniques and instruments to
improve ultrasonic imaging of materials under non-ideal circumstances.---Research is
presented done in collaboration with Declercq’s PhD students Peter McKeon, Jingfei
Liu, Anurupa Shaw, Rayisa Moiseyenko, Qi Wang, and Junliang Dong with financial
support from the Region of Lorraine, l’ Agence Nationale de la Recherche ANR and le
Centre National de la Recherche Scientifique CNRS.
- 3 -
MONDAY, PLENARY SESSION 2
10:40 AM

Acoustic Imaging with Time-Reversal Methods: From Medicine to NDT
---Mathias Fink, Institut Langevin, Ecole Supérieure de Physique et de Chimie Industrielles
de la Ville de Paris, 1 rue Jussieu, Paris, 75005, France

---This talk will present an overview of the research conducted on ultrasonic time-reversal
methods applied to biomedical imaging and to non-destructive testing. We will first
describe iterative time-reversal techniques that allow both focusing ultrasonic waves on
reflectors in tissues (kidney stones, micro-calcifications, contrast agents) or on flaws in
solid materials. We will also show that time-reversal focusing does not need the
presence of bright reflectors but it can be achieved only from the speckle noise
generated by random distributions of non-resolved scatterers. We will describe the
applications of this concept to correct distortions and aberrations in ultrasonic imaging
and in NDT. In the second part of the talk we will describe the concept of time-reversal
processors to get ultrafast ultrasonic images with typical frame rates of order of 10.000
F/s. It is the field of ultrafast ultrasonic imaging that has plenty medical applications and
can be of great interest in NDT. We will describe some applications in the biomedical
domain: Quantitative Elasticity imaging of tissues by following shear wave propagation
to improve cancer detection and Ultrafast Doppler imaging that allows ultrasonic
functional imaging.

- 4 -
MONDAY, PLENARY SESSION 2
11:30 AM

Non-Destructive Evaluation of Fiber-Reinforced Composites with a Fast 2D Fiber-
Optic Laser-Ultrasound Scanner
---Ivan Pelivanov1,2, Jinjun Xia1, C.-W. Wei1, Matthew O’Donnell1, Takashi Buma3,
1Departments of Bioeningeering, University of Washington, Seattle, WA; 2International
Laser Center, Moscow State University, Moscow, Russian Federation; 3Union College,
Schenectady, NY

---Laser ultrasonic (LU) inspection represents an attractive, non-contact method to
evaluate composite materials. Current non-contact systems, however, have relatively
low sensitivity compared to contact piezoelectric detection. They are also difficult to
adjust, very expensive, and strongly influenced by environmental noise. Here, we
demonstrate that most of these drawbacks can be eliminated by combining a new
generation of compact, inexpensive fiber lasers with new developments in fiber
telecommunication optics and an optimally designed balanced probe scheme. In
particular, a new type of a balanced fiber-optic Sagnac interferometer is presented as
part of an all-optical LU pump-probe system for high speed non-destructive testing and
evaluation (NDT&E) of aircraft composites. The performance of the LU system is
demonstrated on a number of composite samples typically used in aircraft industry.
Wide-band ultrasound probe signals are generated directly at the sample surface with a
pulsed fiber laser delivering nanosecond laser pulses at a 1 kHz repetition rate with a
pulse energy of only 0.6 mJ. A balanced fiber-optic Sagnac interferometer is employed
to detect pressure signals in a 1–10 MHz frequency range at the same point (an 8 µm
focal spot) on the composite surface. A fast (up to 100 mm/s) 2D translation system is
employed to move the sample during scanning and produce a complete B-scan
consisting of a thousand A-scans in less than a second. Results obtained with the
Sagnac interferometer are compared to those made with a contact wide-band PVDF
transducer. The sensitivity of this system, in terms of the noise equivalent pressure, is
found to be only 10 dB above the Nyquist thermal noise limit. To our knowledge, this is
the best reported sensitivity for a non-contact ultrasonic detector of this dimension.

- 5 -