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1985
Tuesday, January 1st
12:00 AM

A Finite Element Formulation for Ultrasonic NDT Modeling

Section: Scattering

R. Ludwig, Colorado State University
W. Lord, Colorado State University

San Diego, CA

12:00 AM

A Model for the Ultrasonic Scattering from Multi-Branched Cracks

Section: Scattering

J. D. Achenbach, Northwestern University
K.-Y. Hu, Northwestern University
A. N. Norris, Northwestern University
Timothy A. Gray, Iowa State University
R. Bruce Thompson, Iowa State University

San Diego, CA

12:00 AM

Acoustic Tomographic Reconstruction of Anomalies in Three-Dimensional Bodies

Section: Imaging and Reconstruction

R. M. Bevensee, Lawrence Livermore National Laboratory

San Diego, CA

12:00 AM

Analysis of Many-Defect Systems

Section: Transducers and Signal Processing

John M. Richardson, Rockwell International Science Center
Kenneth W. Fertig Jr., Rockwell International Science Center

San Diego, CA

12:00 AM

Characterization of a Periodic Surface Profile by Pole-Zero Parameterization of Elastodynamic Pulse Reflections

Section: Scattering

R. A. Roberts, Northwestern University
J. D. Achenbach, Northwestern University

San Diego, CA

12:00 AM

Characterization of Noise in Austenitic Stainless Steel

Section: Transducers and Signal Processing

Marvin F. Fleming, Amdata Systems, Inc

San Diego, CA

12:00 AM

Comparison of the T-Matrix And Helmholtz Integral Equation Methods for Wave Scattering Calculations

Section: Scattering

W. Tobocman, Case Western Reserve University

San Diego, CA

12:00 AM

Deconvolution by Design — an Approach to the Inverse Problem of Ultrasonic Testing

Section: Transducers and Signal Processing

D. Eitzen, National Bureau of Standards
N. Hsu, National Bureau of Standards
A. Carasso, National Bureau of Standards
T. Proctor, National Bureau of Standards

San Diego, CA

12:00 AM

Double Amplitude Evaluation in Ultrasonic Testing

Section: Transducers and Signal Processing

Ulrich Opara, Krautkramer GmbH

San Diego, CA

12:00 AM

Elastic Wave Scattering by a Surface-Breaking Planar Crack in 3d

Section: Scattering

William M. Visscher, Los Alamos National Laboratory

San Diego, CA

12:00 AM

Elastodynamic Stress Intensity Factors for an Interface Crack in a Layered Half Space

Section: Scattering

David B. Bogy, University of California
Huey-Ju Pearl Yang, University of California

San Diego, CA

12:00 AM

EMAT/Synthetic Aperture Approach to Thick-Weld Inspection

Section: Transducers and Signal Processing

Raymond E. Schramm, National Bureau of Standards
John C. Moulder, National Bureau of Standards

San Diego, CA

12:00 AM

Error Sensitivity of Long and Intermediate Wavelength Flaw Reconstruction

Section: Transducers and Signal Processing

S. J. Wormley, Iowa State University
D. O. Thompson, Iowa State University

San Diego, CA

12:00 AM

Holographic Inspection for Debonds in Sonar Transducer Head Mass/Shroud Subassemblies

Section: Imaging and Reconstruction

Cecil M. Teller, Texas Research Institute, Inc.

San Diego, CA

12:00 AM

Improvements in Ultrasonic Measurement Modeling with Applications to Ultrasonic Reliability

Section: Probability of Detection

Timothy A. Gray, Iowa State University
R. Bruce Thompson, Iowa State University
B. P. Newberry, Iowa State University

San Diego, CA

12:00 AM

Interaction of Ultrasonic Waves with Simulated and Real Fatigue Cracks

Section: Scattering

D. K. Rehbein, Iowa State University
R. Bruce Thompson, Iowa State University
O. Buck, Iowa State University

San Diego, CA

12:00 AM

Long and Intermediate Wavelength Flaw Reconstruction

Section: Imaging and Reconstruction

D. O. Thompson, Iowa State University
S. J. Wormley, Iowa State University

San Diego, CA

12:00 AM

Low-Frequency Acoustic Microscopy

Section: Imaging and Reconstruction

P. Reinholdtsen, Stanford University
W. W. Hipkiss, Stanford University
B.T. Khuri-Yakub, Stanford University

San Diego, CA

12:00 AM

Modeling of Real UT Transducer Field/Flaw Interactions

Section: Scattering

B. A. Barna, EG & G Idaho, Inc.

San Diego, CA

12:00 AM

Reconstruction of Defects by Ultrasonic Testing Using Synthetic Aperture Procedures

Section: Imaging and Reconstruction

Volker Schmitz, Fraunhofer-Institut für zerstörungsfreie Prüfverfahren
Paul Holler, Fraunhofer-Institut für zerstörungsfreie Prüfverfahren

San Diego, CA

12:00 AM

Reflection of Ultrasonic Waves by an Array of Microcracks

Section: Scattering

Y. C. Angel, Northwestern University
J. D. Achenbach, Northwestern University

San Diego, CA

12:00 AM

Relationship of Gaussian Beam Theory to Scanned Ultrasonic Measurements with Commercial Transducers

Section: Transducers and Signal Processing

R. Bruce Thompson, Iowa State University
E. F. Lopes, Iowa State University

San Diego, CA

12:00 AM

Response of an Elastic Plate to Surface Loads and Buried Dislocation Sources

Section: Scattering

N. Vasudevan, University of California
A. K. Mal, University of California

San Diego, CA

12:00 AM

Statistical Approach to the Automation of Flaw Detection

Section: Probability of Detection

R. K. Elsley, Rockwell International Science Center
K. W. Fertig, Rockwell International Science Center
J. M. Richardson, Rockwell International Science Center
F. Cohen-Tenoudji, Rockwell International Science Center

San Diego, CA

12:00 AM

Statistical Flaw Detection in a Scanning Mode

Section: Probability of Detection

K. W. Fertig, Rockwell International Science Center
J. M. Richardson, Rockwell International Science Center
R. K. Elsley, Rockwell International Science Center

San Diego, CA

12:00 AM

Surface Wave Modes on Spherical Cavities Excited by Incident Ultrasound

Section: Scattering

Anton Nagl, Catholic University
Y. J. Stoyanov, Catholic University
J. V. Subrahmanyam, Catholic University
H. Uberall, Catholic University
P. P. Delsanto, University of Puerto Rico
J. D. Alemar, University of Puerto Rico
E. Rosario, University of Puerto Rico

San Diego, CA

12:00 AM

System Analysis for Wide Band Ultrasonic Test Set-Ups

Section: Transducers and Signal Processing

Ulrich Opara, Krautkramer GmbH

San Diego, CA

12:00 AM

The Elastic Compliance of Imperfect Interfaces: Review and Relationship to Ultrasonic Scattering

Section: Scattering

Jai-Man Baik, Iowa State University
R. Bruce Thompson, Iowa State University

San Diego, CA

12:00 AM

The Focused-Beam Reflection-Mode Acoustic Microscope at Lawrence Livermore National Laboratory — Development and Present Capability

Section: Imaging and Reconstruction

R. D. Weglein, Lawrence Livermore National Laboratory
R. F. Wilson, Lawrence Livermore National Laboratory
S. E. Benson, Lawrence Livermore National Laboratory

San Diego, CA

12:00 AM

The Use of Surface Acoustic Waves to Study Small Fatigue Cracks in 7075-T651 Aluminum and 4340 Steel

Section: Scattering

H. H. Yuce, Stanford University
D. V. Nelson, Stanford University
M. T. Resch, Stanford University

San Diego, CA

12:00 AM

Tomographic Reconstruction of Internal Temperature

Section: Imaging and Reconstruction

S. J. Norton, National Bureau of Standards
H. N. G. Wadley, National Bureau of Standards

San Diego, CA

12:00 AM

Transmission Scanning Acoustic Microscopy for Tilted Plate Specimens

Section: Imaging and Reconstruction

J. K. Wang, University of California
C. S. Tsai, University of California

San Diego, CA

12:00 AM

Ultrasonic Scattering in Composites Using Spatial Fourier Transform Techniques

Section: Scattering

Lester W. Schmerr Jr., Iowa State University

San Diego, CA

12:00 AM

Ultrasonic Welding Defect Sizing by Advanced Pattern Recognition Techniques

Section: Transducers and Signal Processing

Roger W. Y. Chan, Tektrend International Inc.
Douglas Sharp, Tektrend International Inc.
D. Robert Hay, Tektrend International Inc.
Jean-Pierre Monchalin, Energy, Mines and Resources
Jean Bussiere, Industrial Materials Research Institute

San Diego, CA

12:00 AM

Use of the Analytic Signal in Ultrasonic Imaging

Section: Imaging and Reconstruction

Zane W. Bell, Martin Marietta Energy Systems, Inc.

San Diego, CA

12:00 AM