Schedule

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1993
Friday, January 1st
12:00 PM

2-D elastodynamic scattering from a finite closed crack

Section: Elastic Wave Scattering

Gert Persson, Chalmers University of Technology

La Jolla, CA

12:00 PM

A model of bolt hole inspection via eddy current

Section: Eddy Currents

Norio Nakagawa, Iowa State University
John C. Moulder, Iowa State University

La Jolla, CA

12:00 PM

A theoretical approach for the discrimination of crack tip and small defect echoes

Section: Elastic Wave Scattering

Alain Lhemery, Ecole Centrale Paris
Raphaele Raillon, Ecole Centrale Paris
Mourad Ouamer, Ecole Centrale Paris

La Jolla, CA

12:00 PM

Accuracy of the image technique for calculating electro-magnetic field induced at the surface of a ferromagnetic metal

Section: Eddy Currents

S. Sadeghi, Vanderbilt University
D. Mirshekar-Syahkal, University of Essex

La Jolla, CA

12:00 PM

ACFM above a hemispherical pit in an aluminum block

Section: Eddy Currents

D. McKirdy, University College London
A. M. Lewis, University College London

La Jolla, CA

12:00 PM

Acoustic ray tracing with the connection machine

Section: Elastic Wave Propagation

C. Sullivan, University of Oklahoma
Y. Wang, University of Oklahoma
R. A. Kline, University of Oklahoma
R. B. Mignogna, United States Department of Defense
R. S. Schechter, United States Department of Defense
P. P. Delsanto, Politecnico di Torino
L. Ferrero, Politecnico di Torino

La Jolla, CA

12:00 PM

An efficient FEM approach for the study of ultrasonic wave propagation in solids

Section: Elastic Wave Propagation

John Sullivan Jr., Worcester Polytechnic Institute
R. Ludwig
W. J. Grimes

La Jolla, CA

12:00 PM

Application of diffracto sight ot the nondestructive inspection of aircraft structures

Section: Optical Techniques

Jerzy Komorowski, National Research Council of Canada
Ronald W. Gould, National Research Council of Canada
David L. Simpson, National Research Council of Canada
Omer Hageniers, Diffracto Ltd.

La Jolla, CA

12:00 PM

Application of the x-ray measurement model to image processing of x-ray radiographs

Section: Radiography and CT

E. Siwek, Iowa State University
Joseph Nahum Gray, Iowa State University

La Jolla, CA

12:00 PM

Beam profile reflectometry: a new technique for thin film measurements

Section: Optical Techniques

J. Fanton, Therma-Wave, Inc.
J. Opsal, Therma-Wave, Inc.
D. L. Willenborg, Therma-Wave, Inc.
S. M. Kelso, Therma-Wave, Inc.
Allan Rosencwaig, Therma-Wave, Inc.

La Jolla, CA

12:00 PM

Computed tomography applications in turbine engine overhaul

Section: Radiography and CT

Ward Rummel, Martin Marietta Corporation
Mark Davis, United States Department of Defense
Rodolfo Garcia, United States Department of Defense

La Jolla, CA

12:00 PM

Determining conductivity and thickness of continuously varying layers on metals using eddy currents

Section: Eddy Currents

Erol Uzal, Iowa State University
John C. Moulder, Iowa State University
Sreeparna Mitra, Iowa State University
James H. Rose, Iowa State University

La Jolla, CA

12:00 PM

Development and application of local 3-D CT reconstruction software for imaging critical regions in large ceramic turbine rotors

Section: Radiography and CT

E. Sivers, Argonne National Laboratory
D. L. Holloway, Argonne National Laboratory
W. A. Ellingson, Argonne National Laboratory
J. Ling, Chinese Academy of Science

La Jolla, CA

12:00 PM

Development of a neutron radiography simulation model

Section: Radiography and CT

Troy Groth, Iowa State University
Joseph Nahum Gray, Iowa State University

La Jolla, CA

12:00 PM

Dual-band infrared imaging applications: locating buried minefields, mapping sea ice and inspecting aging aircraft

Section: Thermal Techniques

Nancy Del Grande, Lawrence Livermore National Laboratory
Philip F. Durbin, Lawrence Livermore National Laboratory
Dwight E. Perkins, Lawrence Livermore National Laboratory

La Jolla, CA

12:00 PM

Eddy current analysis for 3-D problems using the boundary element method

Section: Eddy Currents

Yijun Liu, Iowa State University
Norio Nakagawa, Iowa State University
Frank Rizzo, Iowa State University

La Jolla, CA

12:00 PM

Electronic holography and shearography NDE for inspection of modern materials and structures

Section: Optical Techniques

J. Clarady, Pratt & Whitney
M. Summers, Pratt & Whitney

La Jolla, CA

12:00 PM

Electronic shearography: current capabilities, potential limitations, and future possibilities for industrial nondestructive inspection

Section: Optical Techniques

John Deaton Jr., National Aeronautics and Space Administration
Robert S. Rogowski, National Aeronautics and Space Administration

La Jolla, CA

12:00 PM

General automated flaw detection scheme for NDE X-ray images

Section: Radiography and CT

Karl Ulmer, Iowa State University
John P. Basart, Iowa State University

La Jolla, CA

12:00 PM

Generation of guided waves in hollow cylinders by wedge and comb type transducers

Section: Elastic Wave Propagation

John Ditri, Pennsylvania State University
Joseph L. Rose, Pennsylvania State University
Aleksander Pilarski, Pennsylvania State University

La Jolla, CA

12:00 PM

Guided waves in piezoelectric plates

Section: Elastic Wave Propagation

Hual-Te Chien, Argonne National Laboratory
Adnan H. Nayfeh, University of Cincinnati
Che-Hua Yang, Johns Hopkins University
Dale E. Chimenti, Johns Hopkins University

La Jolla, CA

12:00 PM

High accuracy method of measuring travelling time of ultrasonic waves

Section: Elastic Wave Propagation

A. Khedher, Catholic University of Louvain
B. de Halleux, Catholic University of Louvain

La Jolla, CA

12:00 PM

High-frequency elastodynamic boundary integral equation inversion using asymptotic phase information

Section: Elastic Wave Scattering

R. Roberts, Iowa State University

La Jolla, CA

12:00 PM

High-speed time-resolved holography for imaging transient events

Section: Optical Techniques

Michael Ehrlich, Johns Hopkins University
James W. Wagner, Johns Hopkins University

La Jolla, CA

12:00 PM

Improved finite difference method for long distance propagation of waves

Section: Elastic Wave Propagation

Doron Kishoni, College of William and Mary
Shlomo Ta'asan, National Aeronautics and Space Administration

La Jolla, CA

12:00 PM

Interaction of Gaussian acoustic beams with plane and cylindrical fluid-loaded elastic structures

Section: Elastic Wave Propagation

Jinguang Zhang, Johns Hopkins University
Dale E. Chimenti, Johns Hopkins University
Smaine Zeroug, Polytechnic University
Leopold B. Felsen, Polytechnic University

La Jolla, CA

12:00 PM

Interaction of ultrasound with imperfectly contacting interfaces

Section: Elastic Wave Propagation

R. Bruce Thompson, Iowa State University

La Jolla, CA

12:00 PM

Inversion of eddy current probe impedance data for crack reconstruction

Section: Eddy Currents

John Bowler, University of Surrey
D. J. Harrison, Defense Research Agency
S. J. Norton, National Institute of Standards and Technology

La Jolla, CA

12:00 PM

Laser shearographic testing of foam insulation on cryogenic fuel tanks

Section: Optical Techniques

Douglas Burleigh, General Dynamics
James E. Engel, General Dynamics
David R. Kuhns, General Dynamics

La Jolla, CA

12:00 PM

Material thickness measurements using Compton backscatter

Section: Radiography and CT

T. Jensen, Iowa State University
Joseph Nahum Gray, Iowa State University

La Jolla, CA

12:00 PM

Mercury modeling for improved crack sizing in tubing

Section: Eddy Currents

Robert Shannon, Westinghouse Science and Technology Center
Warren R. Junker, Westinghouse Science and Technology Center
Norio Nakagawa, Iowa State University
Mohamod Behravesh, Electric Power Research Institute

La Jolla, CA

12:00 PM

Multi-parameter analysis in eddy current inspection of aircraft engine components

Section: Eddy Currents

A. Fahr, National Research Council of Canada
C. E. Chapman, National Research Council of Canada
A. Pelletier, Tektrend International, Inc.
D. R. Hay, Tektrend International, Inc.

La Jolla, CA

12:00 PM

Noise reduction techniques for electronic speckle interferometry

Section: Optical Techniques

Bruno Pouet, Northwestern University
Sridhar Krishnaswamy, Northwestern University

La Jolla, CA

12:00 PM

Nonspecular reflection of rotationally symmetric Gaussian beams from shaped fluid-solid interfaces

Section: Elastic Wave Propagation

Smaine Zeroug, Polytechnic University
Leopold B. Felsen, Polytechnic University

La Jolla, CA

12:00 PM

Numerical calculation of diffraction coefficients in anisotropic media

Section: Elastic Wave Scattering

J. Temple, Harwell Laboratory
L. White, Sheffield City Polytechnic

La Jolla, CA

12:00 PM

Parallel processing technique for acoustic tomography for multilayers

Section: Elastic Wave Propagation

R. Mignogna, United States Department of Defense
R. S. Schechter, United States Department of Defense
H. H. Chaskelis, United States Department of Defense
P. P. Delsanto, Politecnico di Torino
L. Ferrero, Politecnico di Torino
R. Kline, University of Oklahoma
C. Sullivan, University of Oklahoma

La Jolla, CA

12:00 PM

Phase velocity and attenuation of SH waves in a fiber-reinforced composite

Section: Elastic Wave Propagation

Ruey-Bin Yang, University of California, Los Angeles
Ajit K. Mal, University of California, Los Angeles

La Jolla, CA

12:00 PM

Photothermal measurement of metal film thickness in integrated circuit devices

Section: Thermal Techniques

Xioa-Dung Wu, Stanford University
Gordon S. Kino, Stanford University

La Jolla, CA

12:00 PM

Practical estimates of the errors associated with the governing shearography equation

Section: Optical Techniques

John Fulton, Analytical Services and Materials, Inc.
M. Namkung, National Aeronautics and Space Administration
L. D. Melvin, National Aeronautics and Space Administration

La Jolla, CA

12:00 PM

Quantitative analysis of a class of subsurface cracks using shearography and finite element modeling

Section: Optical Techniques

Leland Melvin, National Aeronautics and Space Administration
Brooks A. Childers, National Aeronautics and Space Administration
James P. Fulton, Analytical Services and Materials, Inc.

La Jolla, CA

12:00 PM

Reflection of elastic waves by an array of interface cracks

Section: Elastic Wave Scattering

Jianmin Qu, Georgia Institute of Techology

La Jolla, CA

12:00 PM

Scattering by an infinite array of randomly spaced coplanar cracks

Section: Elastic Wave Scattering

Yozo Mikata, Old Dominion University

La Jolla, CA

12:00 PM

Scattering of a sagittal surface acoustic wave from a large amplitude ridge or a deep groove

Section: Elastic Wave Scattering

A. Baghai-Wadji, Technische Universitat Wien
A. A. Maradudin, University of California, Irvine

La Jolla, CA

12:00 PM

Shearography with syncrhonized pressure stressing

Section: Optical Techniques

Tom Chatters, Northwestern University
Bruno Pouet, Northwestern University
Sridhar Krishnaswamy, Northwestern University

La Jolla, CA

12:00 PM

Solutions of benchmark problems in eddy-current NDE

Section: Eddy Currents

Stephen Jenkins, Sabbagh Associates, Inc.
Jeff C. Treece, Sabbagh Associates, Inc.
R. Kim Murphy, Sabbagh Associates, Inc.
L. David Sabbagh, Sabbagh Associates, Inc.
Harold A. Sabbagh, Sabbagh Associates, Inc.

La Jolla, CA

12:00 PM

Structure characterization with thermal wave imaging

Section: Thermal Techniques

Kurt Bryan, National Aeronautics and Space Administration

La Jolla, CA

12:00 PM

Support minimized limited view CT using a priori data

Section: Radiography and CT

R. Roberts, Iowa State University
O. Ertekin, Iowa State University

La Jolla, CA

12:00 PM

The T matrix for elastic scattering by a partly closed circular crack

Section: Elastic Wave Scattering

Arne Eriksson, Chalmers University of Technology

La Jolla, CA

12:00 PM

Thermal method for depth of damage determination in insulating materials

Section: Thermal Techniques

P. Howell, National Aeronautics and Space Administration
K. Elliott Cramer, National Aeronautics and Space Administration
William P. Winfree, National Aeronautics and Space Administration

La Jolla, CA

12:00 PM

Thermal wave detection and analysis of defects in structural composite materials

Section: Thermal Techniques

D. Crowther, Wayne State University
L. D. Favro, Wayne State University
P.-K. Kuo, Wayne State University
R. L. Thomas, Wayne State University

La Jolla, CA

12:00 PM

Transcatter x-ray technique for the inspection of insulated, oil-carrying pipelines

Section: Radiography and CT

P.-S. Ong, University of Houston
W. L. Anderson, University of Houston
B. D. Cook, University of Houston
R. Subramanyan, University of Houston

La Jolla, CA

12:00 PM

Ultrasonic field patterns and broadband imaging-simulations in transversely isotropic media

Section: Elastic Wave Propagation

M. Spies, Fraunhofer-Institute for Nondestructive Testing
P. Fellinger, University of Kassel
U. Schleichert, University of Kassel
K. J. Langenberg, University of Kassel

La Jolla, CA

12:00 PM

Ultrasonic oblique incidence in anisotropic media

Section: Elastic Wave Propagation

Xiang Zhao, University of Oklahoma
Davis M. Egle, University of Oklahoma

La Jolla, CA

12:00 PM

Ultrasonic propagation through a surface with a step discontinuity: validation of a hybrid, Gauss-Hermite ray tracing beam model

Section: Elastic Wave Propagation

M. Greenwood, Pacific Northwest National Laboratory
J.-L. Mai, Pacific Northwest National Laboratory
A. Minachi, Iowa State University
I. Yalda-Mooshabad, Iowa State University
R. Bruce Thompson, Iowa State University

La Jolla, CA

12:00 PM

Ultrasonic scattering from a crack which emanates from a rivet hole

Section: Elastic Wave Scattering

David Budreck, Iowa State University

La Jolla, CA

12:00 PM

Ultrasonic scattering from spherically orthotropic shells

Section: Elastic Wave Scattering

John Mittleman, United States Department of Defense
Ron Roberts, Iowa State University
R. Bruce Thompson, Iowa State University

La Jolla, CA

12:00 PM

Use of an x-ray process model to determine crack detectability in a multi-layer geometry

Section: Radiography and CT

R. Mark Wallingford, Iowa State University
Joseph Nahum Gray, Iowa State University

La Jolla, CA

12:00 PM

"Vision" approach of calibration methods for radiographic systems

Section: Radiography and CT

Christophe Icord, Commissariat à L'énergie Atomique
Philippe Rizo, Commissariat à L'énergie Atomique
Pascal Sire

La Jolla, CA

12:00 PM

Wall-thickness measurement from two dimensional radiographs

Section: Radiography and CT

W. Graeme Jr., DuPont USA
J. F. Singer, DuPont USA
R. Mayer, DuPont USA

La Jolla, CA

12:00 PM

X-ray computed tomography for geometry acquisition

Section: Radiography and CT

R. Bossi, Boeing Company
A. Crews, Boeing Company
G. Georgeson, Boeing Company
J. Nelson, Boeing Company
J. Shrader, Boeing Compnay

La Jolla, CA

12:00 PM