NDE at the JPL's NDEAA Technologies

LLW-bridge

Nondestructive Evaluation (NDE)

This website includes links to NDEAA Technologies published articles . A description of this lab capability and activity is given in the NDEAA Technologies - NDE Activity Homepage. This research and development includes NDE of composite materials using leaky Lamb waves and Polar Backscattering. This research is conducted in cooperation with Prof. Ajit Mal, Mechanical and Aerospace Engineering Dept., University of California, Los Angeles (UCLA)

Publications

"Leaky Lamb Waves NDE of Composites" - Review of QNDE 1997

"Laser Induced UT Plate Waves" - ASNT Fall Conf. 97

"Smart NDE system for corrosion" - ASNT Spring Conf. 98

"Crawling Platform" - ASNT Spring Conf. 98

"LLW NDE of Aging Airacft" - ASNT Spring Conf. 98

"LLW NDE of Composites" - Paper to SPIE, San Antonio, TX March 1998

"LLW NDE of Composites" - Paper to the 7th European Conf. on NDE, Copenhagen, Denmark, May 26-29, 1998

"Mother-Crawler and Modular NDE-Boards for Robotics Scanning and Testing" - ASNT Fall Conf., October 19-22, 1998, Nashville, TN.

"Composite materials stiffness determination and defects characterization using enhanced LLW dispersion data acquisition method" - SPIE's 6th Annual International Symposium on NDE of Aging Aircraft, Airports, and Aerospace Hardware (nd02), Newport Beach, CA 3-5 March 1999, Invited paper

"NDE of hidden flaws in aging aircraft structures using obliquely backscattered ultrasonic signals (OBUS)" - SPIE's 6th Annual International Symposium on NDE of Aging Aircraft, Airports, and Aerospace Hardware (nd02), Newport Beach, CA, 3-5 March, 1999

"Open-architecture robotic crawlers for NDE of aircraft structures," Materials Evaluation, Vol. 57, No. 3 (1999) pp. 361-366.

"Transition of NDEAA Related Technology to Planetary Telerobotic Mechanisms at JPL." International Symposium on NDT, Torres, RS, Brazil, November 22 to 26, 1999, Invited Paper.

" Emerging NDE Technologies and Challenges at the Beginning of the 3rd Millennium - Part I." Material Evaluation, Vol. 58, No. 1, January 2000, pp. 17-30.

" Emerging NDE Technologies and Challenges at the Beginning of the 3rd Millennium - Part II." Material Evaluation, Vol. 58, No. 2, February 2000, pp. 141-150.

"Automation, Miniature Robotics and Sensing for Nondestructive Evaluation and Testing," Y. Bar-Cohen (Ed.) Vol. 4 of Topics On Nondestructive Evaluation (TONE), B. B. Djordjevic and H. D. Reis (Series Eds.), ISBN 1-57117-043, pp. 1-481, April 2000.
This book is available from Shop ASNT - TONE Vol. 4

"Progress And Challenges to NDE of Composites Using Obliquely Insonified Ultrasonic Waves," SAMPE 2000, 45th Intern. SAMPE Symposium, May 21-25, 2000, Long Beach CA.

"Experimental Enhancements of LLW Dispersion Data Acquisition and Implementation Challenges to NDE of Composites," Materials Evaluation, Vol. 58, No. 6, June 2000, pp. 801-806.

"NDE of Composites Using Leaky Lamb Waves (LLW)," To be published in the NDT&E J., Thomson Press Ltd., 2001.

"Residue detection for real-time removal of paint from metallic surfaces," SPIE 2001 -- NDE Health Monitoring and Diagnostics, Advanced Nondestructive Evaluation for Structural and Biological Health Monitoring, Newport Beach, CA., March 2001

"Biologically Inspired Robots as Artificial Inspectors," Paper 4702-05, Proceedings of the SPIE Smart Structures and Materials Symposium, NDE Conference, San Diego, CA, March 17-19, 2002

"Interaction of high intensity focused ultrasound with biological materials," Paper 4702-40, Proceedings of the SPIE NDE and Smart Structures Symposium, San Diego, CA, March 18-20, 2002

"Making Science Fiction an Engineering Reality Using Biologically-Inspired Technologies," 2002 Lester Honor Lecture, Keynote Presentation, Nov. 2002 -- Materials Evaluation, January 2003

S.-S. Lih, H. J. Lee, and Y. Bar-Cohen, “In-situ measurement of the height of condensed water in steam pipes with dynamic flow”, Proc. SPIE 9805, Health Monitoring of Structural and Biological Systems 2016, 980510 (April 1, 2016); doi:10.1117/12.2219217 http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2512268

Patents related to NDE

"Ultrasonic inspection of composite materials," Patent No. 4,457,174, July 3, 1984
"Multiphase backing materials for piezoelectric broadband transducers," Patent No. 4,482,835, November 13, 1984
"Multiphase backing materials for piezoelectric broadband transducers," Patent No. 4,581,070, April 8, 1986
"Multiphase backing materials for piezoelectric broadband transducers," Patent No. 4,582,680, April 15, 1986
"Properties of composite laminates using leaky lamb waves," Patent No. 4,674,334, June 23, 1987
"Broad band acoustic transducer," Patent No. 4,698,541, October 6, 1987
"Ultrasonic system for automatic determination of material stiffness constants," Patent No. 6,092,421, July 25, 2000

NDE articles on the web

"Polymer Piezoelectric Transducers For Ultrasonic NDE," UTonline, Vol. 1, No. 9, Sept. 1996.
“International NDT Technical Collaboration Using the Internet,” NDTnet, Vol. 1. No. 11, Nov. 1996.
"Autonomous Rapid Inspection of Aerospace Structures," UTonline, Vol. 2, No. 11, Nov. 1997, pp. 1-6.
"Characterization of Defects in Composite Material Using Rapidly Acquired Leaky Lamb Wave Dispersion Data," NDT.net, Vol. 3, No. 9, Sept. 1998.
“Emerging NDE Technologies and Challenges at the Beginning of the 3rd Millennium -- Part I,“ NDTnet, Vol. 5. No. 1, Jan. 2000.
“Emerging NDE Technologies and Challenges at the Beginning of the 3rd Millennium -- Part II," NDT.net, Vol. 5. No. 2, Feb. 2000.
“Experimental Enhancements of LLW Dispersion Data Acquisition and Implementation Challenges to NDE of Composites,” NDTnet, Vol. 5. No. 6 - June 2000,
“NDE of Composites Using Leaky Lamb Waves (LLW),” NDTnet, Vol. 6. No. 2, Feb. 2001.
“Biologically Inspired Robots as Artificial inspectors,” NDT.net, Vol. 7, No. 1, Jan. 2002.

NDE homepages Worldwide

Return to the JPL's NDEAA Webhub

Last update April 22, 2016