Ebook: Review of Progress in Quantitative Nondestructive Evaluation: Volume 4A

This volume (parts A and B) contains the edited papers presented at the annual Review of Progress in Quantitative NDE held at the University of California, San Diego, July 8-13, 1984. We have chosen to organize the papers by subject, an arrangement that we feel to be more useful for a reference volume than the order of paper presentation at the Review. To do this, topical subject headings have been selected under which the large majority of papers reasonably fall. These categories cover a broad spectrum of research in NDE and encompass activities from funda­ mental work to early engineering applications. The scope and depth of the Review may be easily assessed by examination of the Table of Contents. The Review was sponsored by the Center for Advanced NDE at the Ames Lab­ oratory of the U.S. Dept. of Energy in cooperation with the Office of Basic Energy Sciences, USDOE, the Materials Laboratory at Wright-Patterson AFB, and the Naval Sea Systems Command. Approximately 300 attendees re­ presenting various government agencies, industry, and universities parti­ cipated in the technical presentations, poster sessions, and discussions. This Review, possibly the most comprehensive annual symposium in NDE, provides a valuable forum for the timely exchange of technical informa­ tion. A few highlights of the Review are summarized in the following paragraphs.

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Content:
Front Matter....Pages i-xx
Magnetic Resonance Imaging in Medicine: Quantitative Tissue Characterization....Pages 1-10
Improvements in Ultrasonic Measurement Modeling with Applications to Ultrasonic Reliability....Pages 11-17
Statistical Approach to the Automation of Flaw Detection....Pages 19-26
Statistical Flaw Detection in a Scanning Mode....Pages 27-35
A Finite Element Formulation for Ultrasonic NDT Modeling....Pages 37-43
Comparison of the T-Matrix And Helmholtz Integral Equation Methods for Wave Scattering Calculations....Pages 45-51
Ultrasonic Scattering in Composites Using Spatial Fourier Transform Techniques....Pages 53-59
Interaction of Ultrasonic Waves with Simulated and Real Fatigue Cracks....Pages 61-71
Modeling of Real UT Transducer Field/Flaw Interactions....Pages 73-82
Reflection of Ultrasonic Waves by an Array of Microcracks....Pages 83-89
A Model for the Ultrasonic Scattering from Multi-Branched Cracks....Pages 91-102
The Use of Surface Acoustic Waves to Study Small Fatigue Cracks in 7075-T651 Aluminum and 4340 Steel....Pages 103-113
Elastic Wave Scattering by a Surface-Breaking Planar Crack in 3d....Pages 115-123
Elastodynamic Stress Intensity Factors for an Interface Crack in a Layered Half Space....Pages 125-132
The Elastic Compliance of Imperfect Interfaces: Review and Relationship to Ultrasonic Scattering....Pages 133-144
Characterization of a Periodic Surface Profile by Pole-Zero Parameterization of Elastodynamic Pulse Reflections....Pages 145-151
Response of an Elastic Plate to Surface Loads and Buried Dislocation Sources....Pages 153-160
Surface Wave Modes on Spherical Cavities Excited by Incident Ultrasound....Pages 161-165
Relationship of Gaussian Beam Theory to Scanned Ultrasonic Measurements with Commercial Transducers....Pages 167-177
Deconvolution by Design — an Approach to the Inverse Problem of Ultrasonic Testing....Pages 179-188
System Analysis for Wide Band Ultrasonic Test Set-Ups....Pages 189-195
Double Amplitude Evaluation in Ultrasonic Testing....Pages 197-201
Error Sensitivity of Long and Intermediate Wavelength Flaw Reconstruction....Pages 203-211
Ultrasonic Welding Defect Sizing by Advanced Pattern Recognition Techniques....Pages 213-223
EMAT/Synthetic Aperture Approach to Thick-Weld Inspection....Pages 225-232
Characterization of Noise in Austenitic Stainless Steel....Pages 233-239
Analysis of Many-Defect Systems....Pages 241-252
Transmission Scanning Acoustic Microscopy for Tilted Plate Specimens....Pages 253-262
Low-Frequency Acoustic Microscopy....Pages 263-270
The Focused-Beam Reflection-Mode Acoustic Microscope at Lawrence Livermore National Laboratory — Development and Present Capability....Pages 271-278
Holographic Inspection for Debonds in Sonar Transducer Head Mass/Shroud Subassemblies....Pages 279-286
Long and Intermediate Wavelength Flaw Reconstruction....Pages 287-296
Reconstruction of Defects by Ultrasonic Testing Using Synthetic Aperture Procedures....Pages 297-307
Tomographic Reconstruction of Internal Temperature....Pages 309-318
Acoustic Tomographic Reconstruction of Anomalies in Three-Dimensional Bodies....Pages 319-325
Use of the Analytic Signal in Ultrasonic Imaging....Pages 327-332
Probability of Detection of Flaws in a Gas Turbine Engine Component Using Electric Current Perturbation....Pages 333-341
Assessment of the Effects of Scanning Variations and Eddy Current Probe Type on Crack Detection....Pages 343-348
Developments in Surface Crack Detection by the A.C. Field Technique....Pages 349-357
Experimental Verification of Eddy-Current Flaw Theory....Pages 359-364
Analysis of Eddy Current Response due to Flaws in Imperfectly Conducting Materials....Pages 365-370
Application of a Computer Model to Electric Current Perturbation Probe Design....Pages 371-378
Numerical Electromagnetic Modeling for Three-Dimensional Inspection of Ferrous Metals....Pages 379-385
Recent Developments in Eddy Current Testing....Pages 387-400
Magnetic Field Mapping with a Squid Device....Pages 401-410
Calibration Methods for Eddy Current Measurement Systems....Pages 411-420
Frequency Dependence of Electric Current Perturbation Probe Response....Pages 421-428
Development of a Rotating Ferromagnetic Resonance Eddy Current Probe for Inspecting Small Radius Curved Surfaces on Gas Turbine Engine Components....Pages 429-436
Evaluation of an Eddy-Current Tape-Head Probe....Pages 437-442
Analysis of Flat Coils’ System with Displaced Sensors for Eddy Current NDE of Ferromagnetic Metals....Pages 443-451
An Eddy Current Analysis System for Nuclear Fan Cooler Inspection Data Analysis and Interpretation....Pages 453-462
Automatic Eddy Current Inspection of Antirotation Windows in F100 Engine Compressor Air Seals....Pages 463-474
Automatic Eddy Current Hole Centering for Aircraft Engine Components....Pages 475-481
Flaw Detection in Aluminum Welds by the Electric Current Perturbation Method....Pages 483-490
Precision Measurement of Eddy Current Coil Parameters....Pages 491-498
Diffusion, Waves, Phase and Eddy Current Imaging....Pages 499-506
Inversion of Eddy Current Data Using Holographic Principles....Pages 507-515
Eddy Current Curvilinear Scanned Linear Array Near Real-Time Imaging Technique....Pages 517-524
Exact Solution of Probabilistic Inverse Problem Pertaining to the Scattering of Elastic Waves from General Inhomogeneities....Pages 525-534
Connection Between Time- and Frequency-Domain Three-Dimensional Inverse Problems for the Schr?dinger Equation....Pages 535-541
An Efficient Numerical Method for Determination of Shapes, Sizes and Orientations of Flaws for Nondestructive Evaluation....Pages 543-549
The Effects of Noise and Bandlimiting on a One Dimensional Time Dependent Inverse Scattering Technique....Pages 551-558
Detection and Characterization of Surface Cracks Using Leaky Rayleigh Waves....Pages 559-568
Surface Flaw Characterization Using Ultrasonic Backscattered Satellite Pulse Technique....Pages 569-577
Signal Processing for Underclad Crack Sizing....Pages 579-587
Identifying Spherical Voids and Inclusions by Matching the Power Spectra....Pages 589-601
Resonant Scattering and Crack Sizing....Pages 603-609
Status of Implementation of the Inverse Born Sizing Algorithm....Pages 611-621
Improved Probe-Flaw Interaction Modeling, Inversion Processing, and Surface Roughness Clutter....Pages 623-634
An Eddy-Current Model and Inversion Algorithms for Three-Dimensional Flaw Reconstruction....Pages 635-642

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Content:
Front Matter....Pages i-xx
Magnetic Resonance Imaging in Medicine: Quantitative Tissue Characterization....Pages 1-10
Improvements in Ultrasonic Measurement Modeling with Applications to Ultrasonic Reliability....Pages 11-17
Statistical Approach to the Automation of Flaw Detection....Pages 19-26
Statistical Flaw Detection in a Scanning Mode....Pages 27-35
A Finite Element Formulation for Ultrasonic NDT Modeling....Pages 37-43
Comparison of the T-Matrix And Helmholtz Integral Equation Methods for Wave Scattering Calculations....Pages 45-51
Ultrasonic Scattering in Composites Using Spatial Fourier Transform Techniques....Pages 53-59
Interaction of Ultrasonic Waves with Simulated and Real Fatigue Cracks....Pages 61-71
Modeling of Real UT Transducer Field/Flaw Interactions....Pages 73-82
Reflection of Ultrasonic Waves by an Array of Microcracks....Pages 83-89
A Model for the Ultrasonic Scattering from Multi-Branched Cracks....Pages 91-102
The Use of Surface Acoustic Waves to Study Small Fatigue Cracks in 7075-T651 Aluminum and 4340 Steel....Pages 103-113
Elastic Wave Scattering by a Surface-Breaking Planar Crack in 3d....Pages 115-123
Elastodynamic Stress Intensity Factors for an Interface Crack in a Layered Half Space....Pages 125-132
The Elastic Compliance of Imperfect Interfaces: Review and Relationship to Ultrasonic Scattering....Pages 133-144
Characterization of a Periodic Surface Profile by Pole-Zero Parameterization of Elastodynamic Pulse Reflections....Pages 145-151
Response of an Elastic Plate to Surface Loads and Buried Dislocation Sources....Pages 153-160
Surface Wave Modes on Spherical Cavities Excited by Incident Ultrasound....Pages 161-165
Relationship of Gaussian Beam Theory to Scanned Ultrasonic Measurements with Commercial Transducers....Pages 167-177
Deconvolution by Design — an Approach to the Inverse Problem of Ultrasonic Testing....Pages 179-188
System Analysis for Wide Band Ultrasonic Test Set-Ups....Pages 189-195
Double Amplitude Evaluation in Ultrasonic Testing....Pages 197-201
Error Sensitivity of Long and Intermediate Wavelength Flaw Reconstruction....Pages 203-211
Ultrasonic Welding Defect Sizing by Advanced Pattern Recognition Techniques....Pages 213-223
EMAT/Synthetic Aperture Approach to Thick-Weld Inspection....Pages 225-232
Characterization of Noise in Austenitic Stainless Steel....Pages 233-239
Analysis of Many-Defect Systems....Pages 241-252
Transmission Scanning Acoustic Microscopy for Tilted Plate Specimens....Pages 253-262
Low-Frequency Acoustic Microscopy....Pages 263-270
The Focused-Beam Reflection-Mode Acoustic Microscope at Lawrence Livermore National Laboratory — Development and Present Capability....Pages 271-278
Holographic Inspection for Debonds in Sonar Transducer Head Mass/Shroud Subassemblies....Pages 279-286
Long and Intermediate Wavelength Flaw Reconstruction....Pages 287-296
Reconstruction of Defects by Ultrasonic Testing Using Synthetic Aperture Procedures....Pages 297-307
Tomographic Reconstruction of Internal Temperature....Pages 309-318
Acoustic Tomographic Reconstruction of Anomalies in Three-Dimensional Bodies....Pages 319-325
Use of the Analytic Signal in Ultrasonic Imaging....Pages 327-332
Probability of Detection of Flaws in a Gas Turbine Engine Component Using Electric Current Perturbation....Pages 333-341
Assessment of the Effects of Scanning Variations and Eddy Current Probe Type on Crack Detection....Pages 343-348
Developments in Surface Crack Detection by the A.C. Field Technique....Pages 349-357
Experimental Verification of Eddy-Current Flaw Theory....Pages 359-364
Analysis of Eddy Current Response due to Flaws in Imperfectly Conducting Materials....Pages 365-370
Application of a Computer Model to Electric Current Perturbation Probe Design....Pages 371-378
Numerical Electromagnetic Modeling for Three-Dimensional Inspection of Ferrous Metals....Pages 379-385
Recent Developments in Eddy Current Testing....Pages 387-400
Magnetic Field Mapping with a Squid Device....Pages 401-410
Calibration Methods for Eddy Current Measurement Systems....Pages 411-420
Frequency Dependence of Electric Current Perturbation Probe Response....Pages 421-428
Development of a Rotating Ferromagnetic Resonance Eddy Current Probe for Inspecting Small Radius Curved Surfaces on Gas Turbine Engine Components....Pages 429-436
Evaluation of an Eddy-Current Tape-Head Probe....Pages 437-442
Analysis of Flat Coils’ System with Displaced Sensors for Eddy Current NDE of Ferromagnetic Metals....Pages 443-451
An Eddy Current Analysis System for Nuclear Fan Cooler Inspection Data Analysis and Interpretation....Pages 453-462
Automatic Eddy Current Inspection of Antirotation Windows in F100 Engine Compressor Air Seals....Pages 463-474
Automatic Eddy Current Hole Centering for Aircraft Engine Components....Pages 475-481
Flaw Detection in Aluminum Welds by the Electric Current Perturbation Method....Pages 483-490
Precision Measurement of Eddy Current Coil Parameters....Pages 491-498
Diffusion, Waves, Phase and Eddy Current Imaging....Pages 499-506
Inversion of Eddy Current Data Using Holographic Principles....Pages 507-515
Eddy Current Curvilinear Scanned Linear Array Near Real-Time Imaging Technique....Pages 517-524
Exact Solution of Probabilistic Inverse Problem Pertaining to the Scattering of Elastic Waves from General Inhomogeneities....Pages 525-534
Connection Between Time- and Frequency-Domain Three-Dimensional Inverse Problems for the Schr?dinger Equation....Pages 535-541
An Efficient Numerical Method for Determination of Shapes, Sizes and Orientations of Flaws for Nondestructive Evaluation....Pages 543-549
The Effects of Noise and Bandlimiting on a One Dimensional Time Dependent Inverse Scattering Technique....Pages 551-558
Detection and Characterization of Surface Cracks Using Leaky Rayleigh Waves....Pages 559-568
Surface Flaw Characterization Using Ultrasonic Backscattered Satellite Pulse Technique....Pages 569-577
Signal Processing for Underclad Crack Sizing....Pages 579-587
Identifying Spherical Voids and Inclusions by Matching the Power Spectra....Pages 589-601
Resonant Scattering and Crack Sizing....Pages 603-609
Status of Implementation of the Inverse Born Sizing Algorithm....Pages 611-621
Improved Probe-Flaw Interaction Modeling, Inversion Processing, and Surface Roughness Clutter....Pages 623-634
An Eddy-Current Model and Inversion Algorithms for Three-Dimensional Flaw Reconstruction....Pages 635-642
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