Nondestructive Material Evaluation
Tadeusz Stepinski (Tadeusz.Stepinski@signal.uu.se)
Fredrik Lingvall (Fredrik.Lingvall@signal.uu.se)
Signals and Systems, Uppsala University
http://www.signal.uu.se
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Course presentation
Concept of NDE
Short presentation of various NDE techniques
Selected NDE applications
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Nondestructive Material Evaluation
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Course info
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Literature
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Nondestructive Evaluation of Materials, Compendium for Q3, 2002
D.E. Bray & R.K. Stanley, Nondestructive Evaluation. A Tool in Design,
Manufacturing and Service, CRC Press, 1997
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G.Vallin, Oförstörande provning, (Sandvik kompendium)
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Project course (2 persons in each group)
8 lectures introducing into field
Lab in the basement (floor 0) at Magistern
Examination: Full project report + presentation of the project
Web sites for self-education
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http://www.ndt-ed.org/EducationResources/educationresource.htm
http://www.cnde.iastate.edu/ncce/Intro_CC.html
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Nondestructive Material Evaluation
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Nondestructive Testing
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NDT is a very broad, interdisciplinary field that plays a critical
role in assuring that structural components and systems
perform their function in a reliable and cost effective fashion.
NDT technicians and engineers define and implement tests that
locate and characterize material conditions and flaws that might
otherwise cause planes to crash, reactors to fail, trains to derail,
pipelines to burst, and a variety of less visible, but equally
troubling events.
NDT tests are performed in a manner that does not affect the
future usefulness of the object or material. In other words, NDT
allows parts and materials to be inspected and measured
without damaging them.
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Nondestructive Material Evaluation
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Nondestructive Evaluation
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Nondestructive Evaluation (NDE) is a term that is often used
interchangeably with NDT.
Technically, NDE is used to describe measurements that are
more quantitative in nature than NDT.
For example, a NDE method would not only locate a defect, but
it would also be used to measure something about that defect
such as its size, shape, and orientation.
NDE may be used to determine material properties such as
fracture toughness, formability, and other physical
characteristics.
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Nondestructive Material Evaluation
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NDT/NDE Methods
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The number of NDT methods continues to grow.
Researchers continue to find new ways of applying
physics and other scientific disciplines to develop better
NDT methods.
Six NDT methods that are used most often:
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visual inspection,
dye penetrant testing,
magnetic particle testing,
electromagnetic or eddy current testing,
radiography, and
ultrasonic testing.
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