A PART OF THE COLLABORATIVE RESEARCH BETWEEN THE UNIVERSITY OF ARIZONA AND ECOLE NORMALE SUPERIEURE DE CACHAN IN FRANCE IS EXPLAINED IN THIS REPORT. THE RESEARCH REPORTED HERE WAS FUNDED BY THE IREE PROGRAM. TWO SIGNIFICANT FUNDAMENTAL STEPS TOWARD MODELING A PIPE USING DISTRIBUTED POINT SOURCE METHOD (DPSM) WERE TAKEN IN THIS RESEARCH. ONE OF THEM IS THE IMPLEMENTATION OF THE SHADOW EFFECT INTO THE MODELING. THE OTHER IS THE INVESTIGATION OF HOW DIFFERENT TRANSDUCER BOUNDARY CONDITIONS AFFECT THE ULTRASONIC FIELDS. THE RESULTS WERE COMPARED WITH VALUES FROM RAYLEIGHSOMMERFIELD INTEGRAL REPRESENTATION. DPSM RESULTS WERE SHOWN TO BE MMORE VERSATILE.

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Tribikram Kundu graduated with a B.Tech. degree (mechanical engineering)
in 1979 from the Indian Institute of Technology,Kharagpur. His M.S. (1980) and Ph.D. degrees (1983) are in solid mechanics from the University of California, Los Angeles. He is a full professor at the University of Arizona in Tucson, Arizona. He is editor of 18 books (14 conference proceedings, and 4 research monographs), author of 2 textbooks, 9 book chapters, and 210 technical papers, 103 of those
have been published in refereed scientific journals. His fundamental research interests are in the analysis of elastic wave propagation in solids, fracture mechanics, computational mechanics, geo and biomechanics. Prof. Kundu is a Fellow of ASME, ASCE, and SPIE, a member of ASA, ASNT, IACMAG, AAM (American Academy of Mechanics), and a life member of AvHAA (Alexander von Humboldt Association of America). He was awarded the Humboldt Research Prize (Senior Scientist Award) in 2003 and Humbolt Fellowship in 1989 and 1996 from Germany.

Researchers should cite this work as follows:

• (2009), "Development of Non- Contact Sensors for Pipe Inspection by Lamb Wave," http://globalhub.org/resources/1061.

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1. France
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