Review of Progress in Quantitative Nondestructive Evaluation

Keynote Address.- Magnetic Resonance Imaging in Medicine: Quantitative Tissue Characterization.- 1: Ultrasonics.- Section A: Probability of Detection.- Improvements in Ultrasonic Measurement Modeling with Applications to Ultrasonic Reliability.- Statistical Approach to the Automation of Flaw Detection.- Statistical Flaw Detection in a Scanning Mode.- Section B: Scattering.- A Finite Element Formulation for Ultrasonic NDT Modeling.- Comparison of the T-Matrix and Helmholtz Integral Equation Methods for Wave Scattering Calculations.- Ultrasonic Scattering in Composites Using Spatial Fourier Transform Techniques.- Interaction of Ultrasonic Waves with Simulated and Real Fatigue Cracks.- Modeling of Real UT Transducer Field/Flaw Interactions.- Reflection of Ultrasonic Waves by an Array of Microcracks.- A Model for the Ultrasonic Scattering From Multi-Branched Cracks.- The Use of Surface Acoustic Waves to Study Small Fatigue Cracks in 7075-T651 Aluminum and 4340 Steel.- Elastic Wave Scattering by a Surface-Breaking Planar Crack in 3d.- Elastodynamic Stress Intensity Factors for an Interface Crack in a Layered Half Space.- The Elastic Compliance of Imperfect Interfaces: Review and Relationship to Ultrasonic Scattering.- Characterization of a Periodic Surface Profile by Pole-Zero Parameterization of Elastodynamic Pulse Reflections.- Response of an Elastic Plate to Surface Loads and Buried Dislocation Sources.- Surface Wave Modes on Spherical Cavities Excited by Incident Ultrasound.- Section C: Transducers and Signal Processing.- Relationship of Gaussian Beam Theory to Scanned Ultrasonic Measurements with Commercial Transducers.- Deconvolution by Design — An Approach to the Inverse Problem of Ultrasonic Testing.- System Analysis for Wide Band Ultrasonic Test Set-Ups.- DoubleAmplitude Evaluation in Ultrasonic Testing.- Error Sensitivity of Long and Intermediate Wavelength Flaw Reconstruction.- Ultrasonic Welding Defect Sizing by Advanced Pattern Recognition Techniques.- EMAT/Synthetic Aperture Approach to Thick-Weld Inspection.- Characterization of Noise in Austenitic Stainless Steel.- Analysis of Many-Defect Systems.- Section D: Imaging and Reconstruction.- Transmission Scanning Acoustic Microscopy for Tilted Plate Specimens.- Low-Frequency Acoustic Microscopy.- The Focused-Beam Reflection-Mode Acoustic Microscope at Lawrence Livermore National Laboratory — Development and Present Capability.- Holographic Inspection for Debonds in Sonar Transducer Head Mass/Shroud Subassemblies.- Long and Intermediate Wavelength Flaw Reconstruction.- Reconstruction of Defects by Ultrasonic Testing Using Synthetic Aperture Procedures.- Tomographic Reconstruction of Internal Temperature.- Acoustic Tomographic Reconstruction of Anomalies in Three-Dimensional Bodies.- Use of the Analytic Signal in Ultrasonic Imaging.- 2: Eddy Currents.- Section A: Probability of Detection.- Probability of Detection of Flaws in a Gas Turbine Engine Component Using Electric Current Perturbation.- Assessment of the Effects of Scanning Variations and Eddy Current Probe Type on Crack Detection.- Section B: Modeling.- Developments in Surface Crack Detection by the A. C. Field Technique.- Experimental Verification of Eddy-Current Flaw Theory.- Analysis of Eddy Current Response due to Flaws in Imperfectly Conducting Materials.- Application of a Computer Model to Electric Current Perturbation Probe Design.- Numerical Electromagnetic Modeling for Three-Dimensional Inspection of Ferrous Metals.- Section C: Probes and Instruments.- Recent Developments in Eddy Current Testing.- MagneticField Mapping with a SQUID Device.- Calibration Methods for Eddy Current Measurement Systems.- Frequency Dependence of Electric Current Perturbation Probe Response.- Development of a Rotating Ferromagnetic Resonance Eddy Current Probe for Inspecting Small Radius Curved Surfaces on Gas Turbine Engine Components.- Evaluation of an Eddy-Current Tape-Head Probe.- Analysis of Flat Coils’ System with Displaced Sensors for Eddy Current NDE of Ferromagnetic Metals.- An Eddy Current Analysis System for Nuclear Fan Cooler Inspection Data Analysis and Interpretation.- Automatic Eddy Current Inspection of Antirotation Windows in F100 Engine Compressor Air Seals.- Automatic Eddy Current Hole Centering for Aircraft Engine Components.- Flaw Detection in Aluminum Welds by the Electric Current Perturbation Method.- Precision Measurement of Eddy Current Coil Parameters.- Section D: Display Methods.- Diffusion, Waves, Phase and Eddy Current Imaging.- Inversion of Eddy Current Data Using Holographic Principles.- Eddy Current Curvilinear Scanned Linear Array Near Real-Time Imaging Technique.- 3: Theoretical and Applied Inverse Methods.- Section A: Theory.- Exact Solution of Probabilistic Inverse Problem Pertaining to the Scattering of Elastic Waves From General Inhomogeneities.- Connection Between Time- and Frequency-Domain Three Dimensional Inverse Problems for the Schrodinger Equation.- An Efficient Numerical Method for Determination of Shapes, Sizes, and Orientation of Flaws for Nondestructive Evaluation.- The Effects of Noise and Bandlimiting on a One Dimensional Time Dependent Inverse Scattering Technique.- Section B: Ultrasonic Applications.- Detection and Characterization of Surface Cracks Using Leaky Rayleigh Waves.- Surface Flaw Characterization Using Ultrasonic BackscatteredSatellite Pulse Technique.- Signal Processing for Underclad Crack Sizing.- Identifying Spherical Voids and Inclusions by Matching the Power Spectra.- Resonant Scattering and Crack Sizing.- Status of Implementation of the Inverse Born Sizing Algorithm.- Section C: Eddy-Current Applications.- Improved Probe-Flaw Interaction Modeling, Inversion Processing, and Surface Roughness Clutter.- An Eddy-Current Model and Inversion Alogrithms for Three Dimensional Flaw Reconstruction.