the next generation of non-destructive testingthe next generation of non-destructive evaluation is...
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THE NEXT GENERATION OF NON-DESTRUCTIVE TESTING
Angelique N. LasseigneGeneration 2 Materials Technology, LLC
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OUTLINE• Introduction•Technology Changes Over Time•The Next Generation of Non-Destructive Sensors•Examples of Uses of the Next Generation Non-Destructive Sensors
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TECHNOLOGY CHANGES OVER TIMEFrom These: To These:
But what about the technology changes in NDT?
http://www.elon.edu/e-web/predictions/150/1870.xhtml
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TECHNOLOGY CHANGES IN NON-DESTRUCTIVE TESTING
• For centuries blacksmiths used sonic techniques to shape metals by their ringing sound
• 1912 - First application of ultrasonic testing proposed
• 1920 - Industrial radiography for metals begins for castings, welds, armor
• 1926 - First electromagnetic eddy current unit available in NDE equipment
• 1950 - Kaiser introduces acoustic emission techniques
http://www.ndt.net/article/v07n11/yhwu/yhwu.htmhttps://www.nde-ed.org/EducationResources/CommunityCollege/Ultrasonics/Introduction/description.htm
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TECHNOLOGY CHANGES IN NON-DESTRUCTIVE TESTING
http://primis.phmsa.dot.gov/matrix/FilGet.rdm?fil=5529&nocache=1855
https://www.nde-ed.org/EducationResources/CommunityCollege/Other%20Methods/AE/AE_Equipment.htm
http://www.tms.org/pubs/journals/jom/0301/yang/yang-0301.html
www.mti-global.org
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PG&E SAN BRUNO EXPLOSION 2011
http://en.wikipedia.org/wiki/File:SanBrunoFireNight.jpg
www.mti-global.org
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INSPECTION PROGRESS AND CHALLENGES
• Corrosion costs continue to soar with the annual cost in the U.S. being over one trillion dollars
New Challenges:
• To Assess Material Health
- Aging - Properties - Specifications
- Stability - Strain State
• To non-destructively characterize material properties in technical assemblies
• To rapidly perform real-time testing, data acquisition, and assessment, to qualify materials during manufacturing, processing, and use
Thenon-destructiveevaluationcommunityhaveincreasedstructuralintegritybymakingimpressiveadvancementsinassessmentofcracksandmaterialdefects
www.mti-global.org
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G2MT APPROACH TO NDE
� Cracks� Defects� Wastage� Thickness� Distortion
Reactive Proactive� Material Properties
¡ Chemistry¡ Strength,
Toughness� Microstructure� Residual Stresses
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PROACTIVE INTEGRITY MANAGEMENT• Stages of Material Life (Stages of
Materials)
• Birth (Casting, HIP, or other production)
• Growing Up (Welding, Forging, Heat Treating, etc)
• Maturity (Optimizing the Final Product)
• Aging (Lifetime)
• Death (Failure)
• Post-Mortem (Failure Analysis)
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ELECTROMAGNETIC SENSORS
SPEΦ−Φ=Φ
B.P.C. Rao
€
E • dl∫ = −dφ
dt
EMF Flux
€
Z = ωL −1
ωC
2
+ R2
)(P
Φ
)(S
Φ
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MATERIAL PROPERTY SENSORS
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THE NEXT GENERATION OF NON-DESTRUCTIVE TESTING
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Wrinkle 8
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RESIDUAL STRESS MEASUREMENTS ON STEEL LINEPIPE
FundedbyDOT-PHMSAunderContract#:DTRT57-12-C-10054
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RESIDUAL STRESS MEASUREMENTS ON STEEL LINEPIPE
FundedbyDOT-PHMSAunderContract#:DTRT57-12-C-10054
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RESIDUAL STRESS SENSOR ON STEEL LINEPIPE
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RESIDUAL STRESS SENSORS ON ALUMINUM TANK
IDOD IDOD
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RESIDUAL STRESS SENSORS FOR HTHA
• High temperature hydrogen can attack steel in two ways: • Surface decarburization• Internal decarburization and fissuring
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RESIDUAL STRESS SENSORS FOR HTHA
•Detecting Early Stages of HTHA
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RESIDUAL STRESS SENSORS FOR HTHA
� Detecting Early Stages of HTHA
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� Detecting Early Stages of HTHA
RESIDUAL STRESS SENSORS FOR HTHA
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The next generation of non-destructive evaluation is creating a paradigm shiftin materials maintenance and quality assurance allowing for real-time practicaldetermination of the integrity of new and aging components.
Don E. Brae, Historical review of Technology Development in NDE
THE NEXT GENERATION OF NON-DESTRUCTIVE TESTING
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