NDT TESTING TIPS FROM NDTECH - NEWSLETTER #18 - December 2000
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The NDTech Newsletter is published periodically by NDTech, a consulting
firm offering nondestructive testing, services, and instruments. This
newsletter is distributed by email and covers brief descriptions of
some useful but less publicized radiographic, ultrasonic, penetrant,
magnetic particle, and other NDT methods. You will automatically
receive the newsletter, at no cost. If you wish to be removed from the
NDTech Newsletter, simply reply remove with "Remove" as the subject.
To find out more about NDTech and its nondestructive testing consulting
services and instrumentation, visit the NDTech website at
http://www.ndtech.net
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1.News From NTIAC
NTIAC continues to respond to both technical and bibliographic
inquiries from the technical community. Simple literature searches of
the NTIAC Bibliographic Database are conducted for no charge; however,
more extensive reviews and analyses, technology assessments, or
technical assistance can be provided for a nominal negotiated fee.
Topics include the following:
* Neural network analysis of electromagnetic NDE data
* Ultrasonic pattern recognition
* NDE of ceramics
* Weld inspection
* Probability of detection of geometric unsharpness
* Stress and fatigue in the automotive industry
For additional information contact: ntiac@access.texas.gov
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2. PUBLICATIONS
Electromagnetic Nondestructive Evaluation - T. Takagi, J.R. Bowler, and M. Yoshida.
Eddy current testing is a key technology among electromagnetic
nondestructive testing at present and this situation was motivated by a
stringent need to detect small cracks in tubing of a steam generator of
nuclear power plants. In these five years the ECT technology has been
enhanced very much, demonstrating that high performance sensors for ECT
are now ready to be applied to the annual inspection of steam generator
tubing with use of arrayed micro sensors for ECT. In addition to the
innovative technology, an inversion technique is being theoretically
developed to make reconstruction of defects possible with use of data
>from the arrayed sensors. Rapid growth of interest in electromagnetic
nondestructive evaluation has brought together experts from different
parts of the world, as reflected in this work.
The book is intended for engineers, researchers and practitioners
working in the area of electromagnetism.
This summary as well as the book can be found at
http://www.fatbrain.com. The book is listed at $104.00 and has 328
pages. It was published in May 1999.
Electromagnetic Non-Destructive Evaluation (II) - R. Albanese
The book is a collection of papers on electromagnetic nondestructive
evaluation. The book discusses recent developments and exchange
up-to-date information in the field of the electromagnetic
nondestructive evaluation (E'NDE)
Topics covered are:
- New methods of electromagnetic nondestructive testing
- Advanced sensing technology
- Solution to forward and inverse problems
- Proposal and results of benchmark problems
- Applications (nuclear and aircraft industries, etc.)
This summary as well as the book can be found at
http://www.fatbrain.com. The book is listed at $113.00 and has 450
pages. It was published in May 1999.
Nondestructive Characterization of Materials: Materials Research
Society Symposium Proceedings, Volume 591 - T. Matikas, N.
Meyendorf, G. Baaklini, R. Gilmore (editors)
NDE has become an integral part of materials research. It offers the
possibility to determine/gauge material parameters and defects at
nearly any point, line, surface or volume element of interest, and at
nearly any state during the life of the material. Because NDE is not a
single field, but rather a synergism of many scientific and engineering
disciplines, this volumes brings together a range of scientists,
engineers, and academicians to focus and report on multidisciplinary
approaches to solving materials characterization problems. Topics
include: process control and deformation behavior via X-ray techniques;
NDE for fracture, fatigue and corrosion; electric and dielectric NDE;
structure-sensitive properties for NDE characterization; NDE for
silicon wafers and thin films; and optical and infrared techniques.
This volume (containing 46 papers) is available from the Materials
Research Society (MRS) at http://www.mrs.org/publicatons/books/. It was
published in Spring 2000 and has 322 pages.The book is priced at $78.00
for MRS members, $90.00 in the U.S., and $103.00 worldwide
Nondestructive Characterization of Materials in Aging Systems:
Materials Research Society Symposium Proceedings, Volume 593 -
R.L. Crane, S.P. Shah, R. Gilmore, J.D. Achenbach, P.T. Khuri-Yakub,
T.E. Matikas (editors)
Nondestructive evaluation (NDE) can provide accurate data about the
health of materials in aging systems, including aircraft, bridges,
nuclear reactors, roads, ships, industrial manufacturing facilities,
storage vessels for both toxic and nontoxic substances, and electronic
hardware. Special emphasis is given to the structural health of
concrete, defects in high-strength aircraft materials, and the
characterization of steels in nuclear reactors.
This volume (containing 43 papers) is available from the Materials
Research Society (MRS) at http://www.mrs.org/publications/books/. It
was published in Spring 1998 and has 342 pages. The book is priced at
$62.00 for MRS members, $71.00 in the U.S., and $81.00 worldwide.
Nondestructive Testing of Pavements and Backcalculation of
Moduli, Third Volume - Shiraz D. Tayabi and Erland O. Lukanen
(editors)
More than 30 papers present a comprehensive overview of the latest
advances in and the future direction of nondestructive testing (NDT) of
airport and highway pavement using conventional falling weight
deflectometer (FWD) technique and other promising techniques such as
ground penetrating radar (GPR), rolling weight deflectometer (RWD)
testing, and seismic techniques.
This book is available from the American Society for Testing and
Materials at http://www.astm.org. It was published in March 2000 and
has 546 pages. The book is priced at $95.00 in North America and
$105.00 elsewhere.
Pavement Subgrade, Unbound Materials and Nondestructive Testing:
Proceedings of Sessions of Geo-Denver 2000 - Michael S. Mamlouk
(editor)
This book comprised of technical papers presented at Geo-Denver 2000
held August 5-8 2000. The papers cover pavement nondestructive testing
using falling weight deflectometer (FWD), high-speed rolling
deflectometer, and spectral-analysis-of-surface-waves (SASW)
techniques.
The proceedings are available from the American Society of Civil
Engineers at http://www.asce.org. They were published in June 2000 and
has 176 pages. The book is priced at $35.00.
Review of Progress in Quantitive Nondestructive Evaluation,
Volume 19 (AIP Conference Proceedings, Volume 509)-
Donald O. Thompson and Dale E. Chimenti (editors).
These proceedings contain edited papers of most of the presentations
at the 26th Annual Review of Progress in Quantitative Nondestructive
Evaluation (NDE) held in July 1999. The sessions covered all phases of
NDE engineering from fundamentals to prototypes and included various
branches of science from acoustics to X-rays. Part A of the proceedings
broadly treats subjects related in technique development in established
NDE procedures, while Part B is dedicated to materials
characterization, material system, and new techniques and
applications.
The casebound, two-volume set is available from the American Institute
of Physics as http://www.aip.org. It was published in April 2000 and
has 2,228. The set is priced at $325.00, which includes a CD-ROM.
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3. Price List of NTIAC Publications US Foreign
Technology Assesment of Optical Methods for
Nondestructive Evaluation (Part I) NTIAC-80-2 $20 $30
Technology Assesment of Optical Methods for
Nondestructive Evaluation (Part II)NTIAC-81-1 $20 $30
Nondestructive Evaluation of Fiber Reinforced
Composites, Vol. I NTIAC-82-1 $20 $30
Ultrasonic Transducers- Performance Variability,
Design, and Manufacturing Procedures NTIAC-84-1 $20 $30
Automated Radiography, 2nd ed. NTIAC-84-2 $30 $40
NDE Methods for Characterization of Corrosion NTIAC-88-1 $30 $40
Nondestructive Evaluation of Adhesive Bond Quality
NTIAC-89-1 $30 $40
Assessment and Prospects for Improved NDE Bearing
Inspection Technology NTIAC-90-1 $30 $40
The Application of Digital signal Processing and
Pattern Recognition to Ultrasonic and Electromagnetic
Nondestructive Testing and Evaluation NTIAC-90-2 $30 $40
Microwave Nondestructive Evaluation NTIAC-95-01 $50 $60
NEW
Heat Damage in Graphite epoxy composites:
Degradation
Measurement and Detection NTIAC-SR-98-02 $75 $85
NDE of Hidden Corrosion NTIAC-SR-98-03 $75 $85
NDE of Cracks in Aircraft NTIAC-SR-98-04 $75 $85
Laser Ultrasonics NTIAC-TA-98-01 $55 $65
NDE of Process Control of Polymer
Matrix Composites NTIAC-TA-98-02 $55 $65
For further information, call Shelly Clark at (512) 263-3530, or e-mail
clark@ntiac.com
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4. New NDT Publication from American Welding Society
Inspection Trends is a new quarterly publication from the American
Welding Society. The AWS describes the publication as:
"...edited for personnel whose main function is to inspect and test
materials and welds for integrity and provide training for such
activities. The editorial is practical in nature with an emphasis on
trends, technology, issues of concern in the profession, safety, case
histories and basic information on methodology."
The publication is free if you are a member of AWS or you can purchase
a subscription. For more information please contact the American
Welding Society at 1-800-443-WELD.
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5. Offshore NDT Information Web Locations
The oil and gas industry, with its numerous offshore platforms and
extensive network of pipelines, is a significant user of NDT
technologies necessary to assess the structural integrity of these
installations. Underwater testing of welds in pielines is regularly
performed for crack detection using visual, magnetic, electromagnetic,
ultrasonic or radiographic techniques.
The following is a selection of offshore NDT-related homepages:
The homepage of CAN Offshore at http://www.canoffshore.ltd.uk contains
basic information on several non-destructive inspection techniques used
for the oil and gas industry. A brief description of the applications
of NDT techniques such as radiography and eddy current is accompanied
by a photograph depicting on-site testing. Some striking images are
given of rope access inspection applications allowing the NDT inspector
to reach otherwise inaccessible locations. Core Technical homepage
(http://www.coretechnical.com) also offers dazzling views of rope
access NDT operations.
An overview of ultrasonic B-scan capabilities for detection of
corrosion damage on offshore platforms is available at the Deepwater
Corrosion Services site (http://www.deepcorr.com).
Several full text articles related to non-destructive examination of
offshore structures and underwater pipelines are also available
on-line. Among these, the one by E A Ginzel entitled "Mechanised
ultrasonic inspection of offshore platform structures" is published in
the January 1998 issue of NDTnet. This article is located at
http://www.ndt.net/article/0198/ginz_off/ginz_off.htm.
For an insight into the use of remotely operated vehicles (ROVs) for
underwater applications, access http://www.diveweb.com. This DiveWeb
site is divided into information resources on ROVs, marine technology,
offshore, inland/coastal, commercial and technical diving. A selection
of worthwhile ROVs-related articles discussing innovations in remote
intervention from the offshore oil industry is also accessible.
Progress in ROV control systems for improved manipulation of underwater
vehicles, and recent research work carried out at the Japan Marine
Science and Technology Center (http://w3.jamstec.go/jp/) that makes use
of a single optical fibre for ROV control. In addition, research in
teleprogramming for subsea intervention is described at
http://www.cis.upenn.edu/~sayers/tele/subsea.html. The telerobot
homepage of the University of Western Australia allows hands-on on
robotics manipulation via the Internet. A 6-axis industrial robot has
been made available to Internet users at
http://telerobot.mech.uwa.edu.au/ to gain experience on robot
manipulation.
The Norsk Elektro Optikk homepage located at
http://www.neo.no/index.html is a most useful commercial site, with
clear links and concise information about gas monitoring and pipeline
inspection. It also includes job oppurtunities and information for
students (in Norwegian only), an extensive list of publications on
pipeline inspection and user manuals of visual inspection software that
can be downloaded in a PDF format. Moreover, it displays NDT image
results of field trials performed using state-of-the-art video and
advanced digital systems for underwater inspection.
NOTE: This article was abstracted from: Insight, Vol. 41, no. 6, June
1999
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6. Penetrant Inspection, Hot or Cold How, When, and Why?
EDITOR'S NOTE: the following excerpt is translated from a newsletter
entitled "BabbCo Info," dated March 1999, and written by our colleagues
in France at BabbCo, 3 avenue NageImackers, Zac du Val Joyeux, 78450
Villepreux. The excerpt deals with using penetrants to inspect uncooled
welds, and touches on some of the general issues involved when
penetrant inspection temperatures are elevated. The original article
did not deal with incresing the overall effectiveness of penetrant
inspection by adding heat. As the article which appears elsewhere in
this newsletter suggests, there is much to be considered and resolved
concerning the effects of heat on the penetrant inspection process.
TEMPERATURE AFFECTS PENETRANT INSPECTION
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7. NDE Industry News
Lockheed Martin Begins Inspecting F-22 Composite Parts with Unique Laser Tool
Lockheed Martin Aeronautics Company has begun inspecting commposite
F-22 parts using its patented laser ultrasonic technology system, known as
LaserUT. This technology enables affordable, high-volume inspection of
complex-contoured composite parts.
This marks the first production aircraft parts that have been
inspected using the advanced laser testing system, following years of
research and prototyping by Lockheed Martin its predecessors at Fort Worth,
Texas. The company has nine patents issued or pending for this technology.
The next-generation combat aircraft will have a high percentage of
graphite epoxy composite material in their structures. Extensive inspection
is required to ensure no flaws exist in many layers that comprise the
finished composite components. The LaserUT system requires very little
set-up time and performs high-resolution inspection in a tenth of the time
compared to current water-coupled ultrasonic inspection systems.
"We recently inspected a large section of the F-22 engine inlet
duct in less than 2 hours using LaserUT compared to 24 hours with the
first-generation inspection equipment," said Russel W. Ford, Vice President
of Aerostructures Manufacturing at Lockheed Martin Aeronautics Company.
"With this 90 percent reduction in inspection time, we expect to shorten
manufacturing span times by many weeks and to realize substansial cost
savings over the course of F-22 and Joint Strike Fighter production. Also,
the accuracy of the system will help us achieve even higher standards of
quality."
The LaserUT system can handle complex-shaped parts up to 54 by 27
by 21 feet. The system is controlled by a Silicon Graphics Onyx II
supercomputer capable of advanced, real-time signal processing and data
analysis. The computer used a 64-bit R10000 processor with a throughout
capacity of at least 6.4 gigabytes per second. The system has a
user-friendly operator interface that provides the classic ultrasonic
presentations. It also provides real-time feedback to the operator, or
design and process engineers, for rapid configuration and proces changes.
The technologies were developed with company funds and support from
the Air Force Research Laboratory's Materials and Manufacturing Directorate
at Wright-Patterson Air Force Base, Ohio.
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8. Meetings and Symposia Calendar
December 3-8 2000 COMADEM 2000- 13th International Congress and Exhibition on
Condition Monitoring and Diagnostic Engineering Management, The Houston Marriot Westside
Houston, Texas, USA.
Contact:
Henry C. Pusey, Society for Machinery Failure Prevention Technology,
A Division of the Vibration Institute,
4193 Sudley Road, Haymarket, Virginia, 20169-2420, USA.
Email: hcpusey@ix.netcom.com
Website: http://www.mfpt.org
December 5-7 2000 USAF Aircraft Structural Integrity Program (ASIP)
Conference, Hyatt Regency San Antonio, Texas, USA.
Contact:
Dr. Jack Lincoln, ASC/EN,
Wright-Patterson AFB, Ohio, USA.
Phone: (937) 426-2808 and ask for the 2000 USAF ASIP Conference Desk,
Fax: (937) 426-8755.
Website: http://www.asipcon.com
February 24-28 2001 Condition Monitoring 2001: A Conference on the Integration of
Condition Monitoring Technologies for the Optimization of Machine
Maintenance, Adam's Mark Hotel, San Antonio, Texas, USA.
Sponsored by the Society of Tribologies and Lubrication Engineers (STLE).
Contact:
Alex Barton,
Phone:(847) 698-5070,
Email: abarton@2bartons.com
Website: http://www.stle.org
March 26-27 2001 ASTM Symposium on Composite Materials: Testing, Design,
and Acceptance Criteria, Hyatt Regency, Phoenix, Arizona, USA.
Contact:
Dr.Abdul-Hamid Zureick,
School of Engineering, Georgia Institute of Technology,
Atlanta, Georgia 30332-0355, USA.
Phone:(404) 894-2294.
Fax: (404) 894-0211.
Email azureick@ce.gatech.edu
or Dr. Alan T. Nettles,
NASA, Marchall, Space Flight Center, ED34,
Huntsville, Alabama 35812, USA.
Phone:(804) 864-8503.
Fax: (804) 864-8911.
Email: alan.nettles@msfc.nasa.gov
April 2-5 2001 55th Meeting of the Society for the Machinery Failure
Prevention Technology (MFPT), Ramada Plaza Resort Oceanfront Hotel,
Virginia Beach,Virginia, USA. Theme: New Frontiers in Integrated
Diagnostics and Prognostics.
Contact:
Henry or Sallie Pusey, 4193 Sudley Road,
Haymarket, Virginia 20169-2420,USA.
Phone: (703) 754-2334.
Fax: (703) 754-9743
Email: hcpusey@ix.netcom.com
Website: http://www.mfpt.org
June 25-28 2001 National Space & Missile Materials Symposium (NSMMS),
Marriot Hotel and the Monterey Convention Center, Monterey, California,
USA.
Contact:
Space & Missile Materials Symposium, c/o Anteon Corporation,
5100 Springfield St.,
Suite 509, Dayton Ohio 45431, USA
Phone: (937) 254-7950.
Fax: (937) 253-2296.
Website: http://www.usasymposium.com
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NDTech website: http://www.ndtech.net
Email: info@ndtech.net