Phone: 410-516-8924	Fax: 410-516-5293	E-mail:robert.green@jhu.edu

Professor Green conducts research in the nondestructive characterization of materials and the nondestructive evaluation of structures. He is particularly interested in materials process control and in determination of the properties of materials and their state of reliability in civil, military and aerospace applications. Areas of technical interest are ultrasonics, acoustic emission, x-ray radiography, tomography, topography and diffraction including synchrotron radiation, electro-optical systems, light-sound interactions, thermography and vibrothermometry. Recent research has been directed at the application of x-ray tomography for imaging the internal structure of ultralightweight metals; x-ray topographic techniques for imaging defects in quartz, gallium-arsenide, and nickel single crystal turbine blades; non-contact ultrasonics for process control of composites and detection of detects in metals, ceramics, and composites; examination of aging aircraft structures; detection of defects in railroad rails and wheels; non-linear ultrasonic determination of the strength of adhesive bonds used in aircraft and marine applications; and ultrasonic determination of the load on steel reinforcing bars and cables.

Professional Activities

Johns Hopkins since 1960, Dept. Chairman 1970-73, 1979-85, 1992-93); Director Center for NDE (1984-2001); DARPA; JHU Appl. Phys. Lab.; Office of NDE, Metallurgy & Polymers Divisions., National Institute for Science & Technology; U.S. Army Ballistic Research Labs, Aberdeen Proving Ground; Conversion Tubes Advanced Development Lab, R.C.A.; Underwater Explosions Res. Div. & Metallurgical Lab., Norfolk Naval Shipyard. National Materials Advisory Board; National Research Council Panel for Materials Science & Engineering; National President American Society for Nondestructive Testing (Fellow); American Physical Society; Acoustical Society of America (Fellow); ASM International (Fellow); Metallurgical Society of AIME; Materials Research Society; Society for the Advancement of Material and Process Engineering; Technical Editor for Ultrasonics Volume of ASNT Nondestructive Testing Handbook; Editorial Board of the Journal Research in Nondestructive Evaluation; Editor or Co-Editor Nondestructive Characterization of Materials I-XI.

Francesco Lanza di Scalea, James B. Spicer, and Robert E. Green, Jr.,"Electronic Shearography with Thermal Loading for Detecting Debonds in Thick Polyurethane/Steel Panels for Marine Applications", in Research in Nondestructive Evaluation Vol. 12, pp. 43-51 (2000).

Francesco Lanza di Scalea, Shant Kenderian, and Robert E. Green, Jr., "Non-Contact Ultrasonic Inspection of Railroad Tracks", Proceedings of 45th International SAMPE Symposium, pp. 1762-1769 (2000).

Francesco Lanza di Scalea and Robert E. Green, Jr., "A Hybrid Non-Contact Ultrasonic System for Sensing Bond Quality in Tow-Placed Thermoplastic Composites", Journal of Composite Materials, Vol. 34, No.21, pp. 1860-1880 (2000).

K.G. Lipetzky and R.E. Green, Jr., "Practical Applications of X-ray Diffraction Imaging", Proceedings of 15th World Conference on Non-Destructive Testing, Rome, Italy, October (2000).

R.E. Green, Jr. "Advances in Non-Destructive Materials Characterization" (Plenary Lecture), Proceedings of 15th World Conference on Non-Destructive Testing, Rome, Italy, October (2000).

A. Waters and R.E. Green, Jr., "Statistical Void Analysis from CT Imagery with Applications to Damage Evolution in an AM60B Magnesium Alloy", Proceedings of 15th World Conference on Non-Destructive Testing, Rome, Italy, October (2000).

B. Djordjevic, R. Green, Jr., D. Cerniglia and K. Jhang, "Remote Non-Contact Ultrasonic Testing of Aircraft Joints", Proceedings of 2000 USAF Aircraft Structural Integrity Program Conference, San Antonio, TX, December (2000).

Kyungyoung Jhang, Byungil Park, Hyoseong Jang, and Robert E. Green, Jr., "Deconvolution of Scanning Acoustic Microscope (SAM) Ultrasonic Signals using Wavelet Transforms to Inspect Semiconductor Die Bonds", Vol. 27, Review of Progress in Quantitative Nondestructive Evaluation, Vol. 27, pp. 571-578, American Institute of Physics, NY (2001).

R.E. Green Jr. et al., "Nondestructive Characterization of Materials X," Proceedings of the 10th International Symposium on Nondestructive Characterization of Materials, June 2000, Karuizawa, Japan, Elsevier, Tokyo (2001).

Robert E. Green, Jr., "Application of Non-Contact Ultrasonics to Nondestructive Characterization of Materials", Nondestructive Characterization of Materials X, pp. 419-420, Elsevier, Tokyo (2001).

W. Green, J. Winter, Jr., and R. Green, Jr.,Robert E. "Investigation of Low Density Core Processes for Producing Ultra Lightweight Metals Using X-ray Computed Tomography", Nondestructive Characterization of Materials X, pp. 441-442, Elsevier, Tokyo (2001).

S. Kenderian, B.B. Djordjevic and R.E. Green, Jr., "Point and Line Source Laser Generation of Ultrasound for Inspection of Internal and Surface Flaws in Rail and Structural Materials", Research in Nondestructive Evaluation, Vol. 13, pp. 189-200 (2001).

Robert E. Green, Jr., "Nondestructive Evaluation of Bridges", Proceedings of CoHemis-NSF Workshop on "Rehabilitating and Reparing the Buildings and Bridges of the Americas: A Hemispheric Workshop on Future Directions, Mayaguez, Puerto Rico, Daniel Wendichansky and Luis F. Pumarada-O'Neill (Eds.), American Society of Civil Engineers, Reston, VA, pp. 102-111 (2001).

Robert E. Green, Jr., "Imaging Acoustics and Acoustic Imaging", Acoustic Imaging, Vol.26, pp. 1-6 (2002), Roman Gr. Maev (Ed., Kluwer Academis/Plenum Publishers, NY (2002).

Glenn A. Washer and Robert E. Green, Jr., "Ultrasonic Stress Measurement in Prestressing Tendons", Review of Progress in Quantitative Nondestructive Evaluation, Vol. 21, pp. 1288-1294, American Institute of Physics, NY (2002).

Shant Kenderian, B. Boro Djordjevic and Robert E. Green, Jr., "Laser-Based and Air Coupled Ultrasound as Noncontact and Remote Techniques for Testing of Railroad Tracks", Materials Evaluation, Vol.60, No. 1, pp. 65-70 (2002).

Robert E. Green, Jr. "Non-Contact Acoustical Techniques for Non-Destructive Characterization of Materials and Structures", to be published in the Journal of International Applied Mechanics (2002).

G.A. Washer, R.E. Green and R.B. Pond, Jr., "Velocity Constants for ultrasonic Stress Measurement in Prestressing Tendons", Research in Nondestructive Evaluation, Vol. 14, pp. 81-94 (2002).

Robert E. Green, Jr., "Ultrasonic Characterization of the Nonlinear Elastic Properties of Materials", Nonlinear Acoustics at the Beginning of the 21st Century, Proceedings of the 16th International Symposium on Nonlinear Acoustics, O.V. Rudenko and O.A. Sapozhnikov (Eds.), Vol. 2, pp. 739-746, Faculty of Physics, Moscow State University, Moscow, Russia (2002).

Shant Kenderian, B. Boro Djordjevic and Robert E. Green, Jr., "Narrow Band Laser-generated Surface Acoustic Waves Using a Formed Source in the Ablative Regime", J. Acoustical Society of America, Vol. 113, pp. 261-266 (2003).

Shant Kenderian, Tobias Berndt, Robert E. Green, Jr. and B. Boro Djordjevic, "Ultrasonic Monitoring of Dislocations During Fatigue of Pearlitic Rail Steel", Materials Science & Engineering (A), Vol. 348, pp. 90-99 (2003).

Shant Kenderian, Tobias Berndt, Robert E. Green, Jr. and B. Boro Djordjevic, "Ultrasonic Attenuation and Velocity in Pearlitic Rail Steel During Fatigue Using Longitudinal Wave Probing", Journal of Testing and Evaluation, Vol. 3, pp. 98-105 (2003).

Shant Kenderian, B. Boro Djordjevic and Robert E. Green, Jr., "Laser/Air Hybrid Ultrasonic Technique for Railroad Wheel Testing", Materials Evaluation, Vol. 61, pp. 505-511 (2003).

Robert E. Green, Jr., "The Importance of Imaging in Nondestructive Characterization of Materials", Nondestructive Characterization of Materials XI, pp. 3-8, Springer Verlag, Berlin, Germany (2003.

Shant Kenderian, B.B. Djordjevic and R.E. Green, Jr., "Laser-Air Hybrid Ultrasonic Technique for the Inspection of Vertical Cracks in Rails", Nondestructive Characterization of Materials XI, pp. 27-31, Springer Verlag, Berlin, Germany (2003.