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Fatigue crack monitoring of engine cowling 367 376

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fatigue crack monitoring of engine cowling, 367-376 infrared testing, 5, 11-12 infrastructure applications, 305 anchor in power transmission pylon foundation, 397 bridge moment tensor analysis application, 392, 394-397 bridge testing, 306-309 construction cooling and grout injection in arch dams, 397-398 crack growth monitoring in steel bridge components, 310-314 evaluation of loosened area around rock cavern, 399 slope stability evaluation, 315-325 stress corrosion cracking of prestressed cables on suspension bridges, 417 in-house programs, 14-15 initiation frequency, 154 Institute of Electrical and Electronics Engineers, 17 instrumentation acoustic emission testing, 13, 38-40, 61 airborne ultrasound detection, 191 machinery condition monitoring, 244 ultrasound leak testing, 186, 191-197 instrumentation air systems, ultrasound leak testing, 200 intergranular microfracture, 70 internal fluid leaks, 183 International Organization for Standardization (ISO), 17, 20 interpretation, 16, 36-37, 45-46 airborne ultrasound leak signals, 196-197 iron acoustic emission during forging, 21 acoustic emission from alloys of, 21 cleavage microfracture, 70, 71 martensitic transformation, 75 wave speed in four directions and acoustic impedance, 80 irreversibility, of acoustic emission, 13, 37 ISO 9712, 20 isodata clustering algorithm, 165 J Japanese Institute for Standardization, 17 Japanese Society for Nondestructive Inspection, 17 K Kaiser, Josef, 22, 37 kaiser effect, 22 and deformation, 62 detailed description, 37-38 as limitation in acoustic emission testing, 13 kaiser principle, 38 Kishinouye, Fuyuhiko, 21 k means clustering algorithm, 165, 166 Knauss, Paul L., 22 K nearest neighbor classifier, 49, 50, 162, 164 kohonen self-organizing map failure mechanism of fiberglass epoxy tensile test objects, 168 fatigue crack monitoring of engine cowling application, 369-370 L labyrinthine leak, 189 Lamb’s constants, 79 Lamb’s problem, 95, 96 lamb wave dispersion curves for source location, 139-145 in steel plate, 114 laminar flow leakage, 183 equipment for detecting, 188-189 laser interferometers, as transducers, 51 lead break source. See pencil break source lead, wave speed in four directions and acoustic impedance, 80 lead zirconate titanate first half-wave resonance, 52 transducer material, 51 temperature effect, 54 leak detection, 33 leak location, 33 leaks. See also acoustic leak testing; ultrasound leak testing acoustically active and passive, 183 acoustic emission sources in, 32 delayed coke drums, 290 viscosity dependent, 184 Le Systéme International d’Unités (SI system), 25 linear classifier, 162, 163 linear discriminant function classifier, 49, 50 linear elastic fracture model, 66-67 linear location, 126-127 liquefaction, acoustic emission caused by, 32 liquid leak amplification, 187, 188 liquid penetrant testing, 8 440 Acoustic Emission Testing
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liquid-to-solid phase transformations, 78 lithium niobate, temperature effect, 54 Lockman, Charles S., 24 longitudinal waves, 80-81 diffuse wave fields, 98 energy partition at free surface, 86 incident on free surface, 85 reflection and transmission at interface between two solids, 87-88 uniform motion under transducer, 52-53 loose parts monitoring in nuclear reactors, 347-353 power transformers, 333
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  • Fall '19
  • Dune, Nondestructive testing, Acoustic Emission

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