Review of Progress in Quantitative Nondestructive Evaluation: Volume 1

Section I - Introductory.- NDE - A Key To Enhanced Productivity.- Increased Reliability - A Critical Nde Research Goal.- Section II - Current Status of Elements of Quantitative Nde.- Probabilistic Fracture Mechanics.- Present Status and Future Needs for Quantitative Measurement Techniques.- Overview of Probabilistic Failure Prediction and Accept-Reject Decisions.- Section III - Nde Engineering Application.- Advanced Signal Processing of Turbine Rotor Bore Waveforms.- An Automated Production Holography Test Facility.- Automated Ultrasonic Dimentsional and Defect Inspection of Complex Geometry Gas Turbine Airfoil Shapes.- A Variable Reluctance Probe for the Detection of Magnetite Buildup in Steam Generator Tubing.- Retirement for Cause Inspection System Design.- An Enhancement for the Ultrasonic Test Bed to Inspect Engine Disk Bolt Holes.- The Epri Nde Center.- Section IV - Direct Scattering--Ultrasonics.- Elastic Wave Scattering Calculations, the Born Series and the Matrix Variational Pade Approximant Method.- The Eikonal Approximation in Elastic Wave Scattering Theory.- Inverse Scattering at long wave length: ?? = 0.- The Unimoment Method for Elastic wave Scattering Problems.- Method of Equivalent Inclusion in Dynamic Elasticity.- Advances in Numerical Studies of Elastic wave Propagation and Scattering.- Multiple Scattering Formalism: Application to Scattering by two Spheres.- Experimental Measurements of Scattering from Bulk Flaws.- Characteristics of the Reflection of sv waves from Submicron Thickness Liquid Layers.- Section V - Inversion Process for flaw Characterization.- Inversion of Ultrasonic Scattering Data.- The Theory of Flaw Centroids and Low-Frequency Phase Shifts--a Review.- Ultrasonic Defect Classification using the Singularity Expansion Method.- Application of Parameter Estimation/System Identification to Quantitative Ultrasonic Nde.- Rigorous Results on Inverse Source and Inverse Scattering Theory.- Sizing of Surface Cracks in a Plate using sh Waves.- Range of Applicability of Inversion Algorithms.- Test Bed for Quantitative Nde - Inversion Results.- Section VI - Posters-Ceramics, Composites, and Selected Applications.- Fluorescent Dye Penetrant Inspection of Silicon Nitride Bearing Surfaces.- The Application of the State-of-the-Art Nde Techniques to Defect Detection in Silicon Carbide Structural Ceramics.- Tensile Testing of Silicon Nitride.- Application of the Ultrasonic Test Bed for Graphite/Organic Composites.- Fatigue Lifetime Predictions From Ultrasonically Detected Laminar Defects in a Graphite-Epoxy Composite.- Characterization of Stability Mechanisms in Advanced Composites.- Ultrasonic Evaluation of U - 3/4 ti Penetrators by Amplitude and Frequency Analysis.- Ultrasonic Test Samples.- Nde of Simulated Space Shuttle Tile Disbonds.- Thermal Spray Nde Requirements for Production Quality Assurance in the Usn.- Section VII - Fracture Mechanics--Nde Interface.- Mechanisms Which Influence the Applicability of Fracture Mechanics for Short Cracks.- Crack Opening Displacement as a Fracture Mechanics Parameter in Eddy Current Nde.- Effects of Closure on the Detection Probability of Fatigue Cracks.- Section VIII - Eddy Currents.- A Theory of Eddy Current Nde for Cracks in Nonmagnetic Materials.- Developments in the Finite Element Modeling of Eddy Current Phenomena at Colorado State University.- Analytical Methods in Eddy Current Nde.- Impedance Changes Produced by a Crack in a Plane Surface Arnold.- System Analysis of Eddy-Current Measurements.- Absolute Eddy-Current Measurement of Electrical Conductivity.- Multisegment Eddy Current Probe.- Nde of Fastener Hole Cracks by the Electric Current Perturbation Method Cecil.- Section IX - Acoustic Emission.- The Inverse Problem of Acoustic Emission-Explicit Determination of Acoustic Emission Source--Time Functions.- A Case Study of Sensitivity of some Pattern Classifiers used in Sorting Acoustic Emission Signals.- Quantitative Acoustic Emission Studies for Materials