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The radiation mode theory in ultrasonics | IEEE Journals & Magazine | IEEE Xplore

The radiation mode theory in ultrasonics


Abstract:

This paper describes the history and the state of the art in radiation mode theory (RMT) in ultrasonics. The RMT originates from electromagnetism in which it has proved t...Show More

Abstract:

This paper describes the history and the state of the art in radiation mode theory (RMT) in ultrasonics. The RMT originates from electromagnetism in which it has proved to be very efficient in the field of wave guides and discontinuities. In ultrasonics, the RMT made its entrance only a decade ago and has already proved to be very efficient in describing the interaction of sound with discontinuities such as a step on a plate, a liquid wedge, the extremity of a plate and much more. It is likely that the development of the RMT for two-dimensional (2-D) isotropic media has come almost to an end. This paper lists the results obtained so far. Further extensions to more complicated media are to be expected in the coming decade.
Page(s): 802 - 808
Date of Publication: 31 May 2005

ISSN Information:

PubMed ID: 16048180
Author image of N.F. Declercq
Soete Laboratory, Department of Mechanical Construction and Production, Ghent University, Ghent, Belgium
Nico F. Declercq was born in Kortrijk (Belgium) in 1975 and obtained a B.Sc. and M.Sc. degree in (Astro-)physics at the Catholic University of Leuven. He began working as a volunteer researcher in The Physical Acoustics and Acousto-Optics Research Group of O. Leroy at the Interdisciplinary Research Center and moved to the Ghent University in October 2001 where he started his Ph.D. research with financial support of ‘The F...Show More
Nico F. Declercq was born in Kortrijk (Belgium) in 1975 and obtained a B.Sc. and M.Sc. degree in (Astro-)physics at the Catholic University of Leuven. He began working as a volunteer researcher in The Physical Acoustics and Acousto-Optics Research Group of O. Leroy at the Interdisciplinary Research Center and moved to the Ghent University in October 2001 where he started his Ph.D. research with financial support of ‘The F...View more
Author image of R. Briers
RENO Department, KATHO, Torhout, Belgium
Rudy Briers was born in Geel (Belgium) on October 9th 1965, has an B.Sc. and M.Sc. in mathematics, is aggregated for teaching in higher education and has a Ph.D. in Sciences at the Catholic University of Leuven (KUL, Belgium). He has been assistant professor in the department of Astronomy and the department of Mathematics and Physics. After his Ph.D., he worked as a postdoctoral fellow and was a driving force at the Physi...Show More
Rudy Briers was born in Geel (Belgium) on October 9th 1965, has an B.Sc. and M.Sc. in mathematics, is aggregated for teaching in higher education and has a Ph.D. in Sciences at the Catholic University of Leuven (KUL, Belgium). He has been assistant professor in the department of Astronomy and the department of Mathematics and Physics. After his Ph.D., he worked as a postdoctoral fellow and was a driving force at the Physi...View more
Author image of O. Leroy
Interdisciplinary Research Center, Katholieke Universiteit Leuven, Kortrijk, Belgium
Oswald Leroy was born in Passendale (Belgium) in 1936 and received his Ph.D. in Mathematical Physics at the Ghent University. His main fields of interest are Acousto-Optics and Physical Acoustics. His work has resulted in many scientific advances in the famous so called Belgian School of Acousto Optics (Founded by R. Mertens after WWII). He worked as an assistant at the Ghent University from 1966 until 1972 and has been P...Show More
Oswald Leroy was born in Passendale (Belgium) in 1936 and received his Ph.D. in Mathematical Physics at the Ghent University. His main fields of interest are Acousto-Optics and Physical Acoustics. His work has resulted in many scientific advances in the famous so called Belgian School of Acousto Optics (Founded by R. Mertens after WWII). He worked as an assistant at the Ghent University from 1966 until 1972 and has been P...View more
Author image of J. Degrieck
Soete Laboratory, Department of Mechanical Construction and Production, Ghent University, Ghent, Belgium
Joris Degrieck was born in Veurne (Belgium) on the 10th of February 1959 and obtained an M.Sc. in Mechanical Engineering and a Ph.D. in Applied Science (Mechanical Engineering) at the Ghent University. From 1986–1991 he has been assistant and lecturer at the Ghent University. From 1991–1996, he has been a research engineer and project leader at the Research Institute of the Belgian Metalworking Industries (WTCM-CRIF). Fro...Show More
Joris Degrieck was born in Veurne (Belgium) on the 10th of February 1959 and obtained an M.Sc. in Mechanical Engineering and a Ph.D. in Applied Science (Mechanical Engineering) at the Ghent University. From 1986–1991 he has been assistant and lecturer at the Ghent University. From 1991–1996, he has been a research engineer and project leader at the Research Institute of the Belgian Metalworking Industries (WTCM-CRIF). Fro...View more
Author image of G.N. Shkerdin
Institute of Radioengineering and Electronics, Russian Academy of Science, Moscow, Russia
Gennady N. Shkerdin was born in vil. Leonidovka (Pensa Region, USSR) in 1946 and graduated from the Moscow Institute of Physics and Technology (MIPT) in 1971 and from the post-graduate course of MIPT in 1974 with a PhD thesis on the theory of acoustooptic interaction in conductive crystals. From 1974 on he has worked in the Institute of Radio Engineering and Electronics of the Russian Academy of Sciences (IRE RAS). Now he...Show More
Gennady N. Shkerdin was born in vil. Leonidovka (Pensa Region, USSR) in 1946 and graduated from the Moscow Institute of Physics and Technology (MIPT) in 1971 and from the post-graduate course of MIPT in 1974 with a PhD thesis on the theory of acoustooptic interaction in conductive crystals. From 1974 on he has worked in the Institute of Radio Engineering and Electronics of the Russian Academy of Sciences (IRE RAS). Now he...View more

I. Introduction

The General Rule in acoustics is to describe sound in the same symmetrical system as the scatterer or as the sound source. For example sound emitted by a cylinder is described in cylindrical coordinates, and sound emitted by a sphere is described in spherical coordinates.

Author image of N.F. Declercq
Soete Laboratory, Department of Mechanical Construction and Production, Ghent University, Ghent, Belgium
Nico F. Declercq was born in Kortrijk (Belgium) in 1975 and obtained a B.Sc. and M.Sc. degree in (Astro-)physics at the Catholic University of Leuven. He began working as a volunteer researcher in The Physical Acoustics and Acousto-Optics Research Group of O. Leroy at the Interdisciplinary Research Center and moved to the Ghent University in October 2001 where he started his Ph.D. research with financial support of ‘The Flemish Institute for the Encouragement of the Scientific and Technological Research in Industry (I.W.T.)’. The public defense of his Ph.D. dissertation is expected to be held in April 2005. Meanwhile, he has published over 25 papers in journals, listed in the science citation index, and has made a few dozens of presentations at international congresses. He is also a regular referee for several journals. His current theoretical and experimental research is situated in Physical Acoustics (diffraction on corrugated interfaces, interaction of sound with isotropic and anisotropic piezoelectric and non-piezoelectric materials, interaction of sound with mud and sediment layers, inhomogeneous waves, etc.), Architectural Acoustics (diffraction phenomena on staircases, etc.), Underwater Acoustics (ultrasonic beams, etc.) and Acousto-Optics (Schlieren photography, nondestructive testing, etc.). He is a member of IEEE, Acoustical Society of America ASA, Russian Acoustical Society RAS, Belgian Acoustical Society ABAV, French Acoustical Society SFA, The British Institute of Non-Destructive Testing BINDT, The International Institute of Acoustics and Vibration IIAV and the Acoustical Society of India ASI, The Canadian Acoustical Association CAA-ACA, The American Physical Society APS and The European Physical Society EPS. He has won the Best Presentation Award at the 2nd FTW Ph.D. symposium (Ghent University 2001) and the Physical Acoustics Best Student Paper Award presented by the Physical Acoustics Technical Committee of the Acoustical Society of America at the First Pan-American/Iberian Meeting on Acoustics (Cancun, Mexico, 2002). He is the coordinator of a Nato grant in collaboration with The Institute of Radio Engineering and Electronics (Russian Academy of Sciences, Moscow, Russia) and The National Center for Physical Acoustics (Ole Miss, MS). Lately, he has been a visiting scientist at The Laboratory for Acousto-Optics and Solid State Acoustics (NCPA-Ole Miss, MS), Precision and Intelligence Laboratory (Tokyo Institute of Technology, Japan), The Department of Materials Engineering (University of Moratuwa, Sri Lanka), The Laboratory of Acoustic Microscopy (Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia) and The Institute of Radio Engineering and Electronics (Russian Academy of Sciences, Moscow, Russia) and The Department of Physics (M. V. Lomonosov Moscow State University, Moscow, Russia). He also assists in organizing the World Congress on Ultrasonics. Furthermore, his work on special acoustic effects in front of the Great Pyramid of Chichen Itza (Mexico) has been reported by Nature and numerous newspapers around the globe.
Nico F. Declercq was born in Kortrijk (Belgium) in 1975 and obtained a B.Sc. and M.Sc. degree in (Astro-)physics at the Catholic University of Leuven. He began working as a volunteer researcher in The Physical Acoustics and Acousto-Optics Research Group of O. Leroy at the Interdisciplinary Research Center and moved to the Ghent University in October 2001 where he started his Ph.D. research with financial support of ‘The Flemish Institute for the Encouragement of the Scientific and Technological Research in Industry (I.W.T.)’. The public defense of his Ph.D. dissertation is expected to be held in April 2005. Meanwhile, he has published over 25 papers in journals, listed in the science citation index, and has made a few dozens of presentations at international congresses. He is also a regular referee for several journals. His current theoretical and experimental research is situated in Physical Acoustics (diffraction on corrugated interfaces, interaction of sound with isotropic and anisotropic piezoelectric and non-piezoelectric materials, interaction of sound with mud and sediment layers, inhomogeneous waves, etc.), Architectural Acoustics (diffraction phenomena on staircases, etc.), Underwater Acoustics (ultrasonic beams, etc.) and Acousto-Optics (Schlieren photography, nondestructive testing, etc.). He is a member of IEEE, Acoustical Society of America ASA, Russian Acoustical Society RAS, Belgian Acoustical Society ABAV, French Acoustical Society SFA, The British Institute of Non-Destructive Testing BINDT, The International Institute of Acoustics and Vibration IIAV and the Acoustical Society of India ASI, The Canadian Acoustical Association CAA-ACA, The American Physical Society APS and The European Physical Society EPS. He has won the Best Presentation Award at the 2nd FTW Ph.D. symposium (Ghent University 2001) and the Physical Acoustics Best Student Paper Award presented by the Physical Acoustics Technical Committee of the Acoustical Society of America at the First Pan-American/Iberian Meeting on Acoustics (Cancun, Mexico, 2002). He is the coordinator of a Nato grant in collaboration with The Institute of Radio Engineering and Electronics (Russian Academy of Sciences, Moscow, Russia) and The National Center for Physical Acoustics (Ole Miss, MS). Lately, he has been a visiting scientist at The Laboratory for Acousto-Optics and Solid State Acoustics (NCPA-Ole Miss, MS), Precision and Intelligence Laboratory (Tokyo Institute of Technology, Japan), The Department of Materials Engineering (University of Moratuwa, Sri Lanka), The Laboratory of Acoustic Microscopy (Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia) and The Institute of Radio Engineering and Electronics (Russian Academy of Sciences, Moscow, Russia) and The Department of Physics (M. V. Lomonosov Moscow State University, Moscow, Russia). He also assists in organizing the World Congress on Ultrasonics. Furthermore, his work on special acoustic effects in front of the Great Pyramid of Chichen Itza (Mexico) has been reported by Nature and numerous newspapers around the globe.View more
Author image of R. Briers
RENO Department, KATHO, Torhout, Belgium
Rudy Briers was born in Geel (Belgium) on October 9th 1965, has an B.Sc. and M.Sc. in mathematics, is aggregated for teaching in higher education and has a Ph.D. in Sciences at the Catholic University of Leuven (KUL, Belgium). He has been assistant professor in the department of Astronomy and the department of Mathematics and Physics. After his Ph.D., he worked as a postdoctoral fellow and was a driving force at the Physical Acoustics and Acousto-Optics Research Group of Prof. O. Leroy, with financial support of the Flanders Institute for Scientific Research and Technology (IWT) and the Belgian National Fund for Scientific Research (FWO). His research is mainly situated in the field of Physical Acoustics (non-destructive testing, coatings, diffraction gratings, surface waves, etc.). He developed the Radiation Mode Theory in ultrasonics in collaboration with Prof. O. Leroy and Prof. G. Shkerdin (Russian Academy of Sciences). At present, he is a lecturer in Mathematics and Computer Sciences at the Katholieke Hogeschool Zuid-West Vlaanderen (KATHO, Belgium) and is a professor of Statistics in Medical Sciences at the Catholic University of Leuven. He is referee for international journals and member of several acoustical societies.
Rudy Briers was born in Geel (Belgium) on October 9th 1965, has an B.Sc. and M.Sc. in mathematics, is aggregated for teaching in higher education and has a Ph.D. in Sciences at the Catholic University of Leuven (KUL, Belgium). He has been assistant professor in the department of Astronomy and the department of Mathematics and Physics. After his Ph.D., he worked as a postdoctoral fellow and was a driving force at the Physical Acoustics and Acousto-Optics Research Group of Prof. O. Leroy, with financial support of the Flanders Institute for Scientific Research and Technology (IWT) and the Belgian National Fund for Scientific Research (FWO). His research is mainly situated in the field of Physical Acoustics (non-destructive testing, coatings, diffraction gratings, surface waves, etc.). He developed the Radiation Mode Theory in ultrasonics in collaboration with Prof. O. Leroy and Prof. G. Shkerdin (Russian Academy of Sciences). At present, he is a lecturer in Mathematics and Computer Sciences at the Katholieke Hogeschool Zuid-West Vlaanderen (KATHO, Belgium) and is a professor of Statistics in Medical Sciences at the Catholic University of Leuven. He is referee for international journals and member of several acoustical societies.View more
Author image of O. Leroy
Interdisciplinary Research Center, Katholieke Universiteit Leuven, Kortrijk, Belgium
Oswald Leroy was born in Passendale (Belgium) in 1936 and received his Ph.D. in Mathematical Physics at the Ghent University. His main fields of interest are Acousto-Optics and Physical Acoustics. His work has resulted in many scientific advances in the famous so called Belgian School of Acousto Optics (Founded by R. Mertens after WWII). He worked as an assistant at the Ghent University from 1966 until 1972 and has been Professor at the Catholic University of Leuven (Katholieke Universiteit Leuven) since 1972, where he established and directed the Physical Acoustics and Acousto-Optics Research Group at the Interdisciplinary Research Center. He was a Guest Professor at Université de Paris 7 and Université de Bordeaux in France, University of Tennessee in the U.S. and Tokyo Institute of Technology in Japan. He has been a referee for many International Journals. He received Nato Grants in cooperation with Georgetown University, University of Tennessee and University of Houston.
He is a Fellow of The Acoustical Society of America, and a member of The Institute of Electric and Electronic Engineering, Société Francaise d'Acoustic and The Belgian Acoustical Society. He received an Honorary Doctorate from the University of Gdansk (Poland) in 1991. He has won the Médaille étrangère of the French Acoustical Society in 2001. He accorded his Emeritus Status in October 2001.
Oswald Leroy was born in Passendale (Belgium) in 1936 and received his Ph.D. in Mathematical Physics at the Ghent University. His main fields of interest are Acousto-Optics and Physical Acoustics. His work has resulted in many scientific advances in the famous so called Belgian School of Acousto Optics (Founded by R. Mertens after WWII). He worked as an assistant at the Ghent University from 1966 until 1972 and has been Professor at the Catholic University of Leuven (Katholieke Universiteit Leuven) since 1972, where he established and directed the Physical Acoustics and Acousto-Optics Research Group at the Interdisciplinary Research Center. He was a Guest Professor at Université de Paris 7 and Université de Bordeaux in France, University of Tennessee in the U.S. and Tokyo Institute of Technology in Japan. He has been a referee for many International Journals. He received Nato Grants in cooperation with Georgetown University, University of Tennessee and University of Houston.
He is a Fellow of The Acoustical Society of America, and a member of The Institute of Electric and Electronic Engineering, Société Francaise d'Acoustic and The Belgian Acoustical Society. He received an Honorary Doctorate from the University of Gdansk (Poland) in 1991. He has won the Médaille étrangère of the French Acoustical Society in 2001. He accorded his Emeritus Status in October 2001.View more
Author image of J. Degrieck
Soete Laboratory, Department of Mechanical Construction and Production, Ghent University, Ghent, Belgium
Joris Degrieck was born in Veurne (Belgium) on the 10th of February 1959 and obtained an M.Sc. in Mechanical Engineering and a Ph.D. in Applied Science (Mechanical Engineering) at the Ghent University. From 1986–1991 he has been assistant and lecturer at the Ghent University. From 1991–1996, he has been a research engineer and project leader at the Research Institute of the Belgian Metalworking Industries (WTCM-CRIF). From 1993 until present, he has been respectively part time professor, teaching “Mechanics of Fibre Reinforced Materials” and professor, teaching “Composite Materials”, “Mechanics of Materials”, and “Kinematics and Dynamics of Mechanisms” at the Ghent University. His main research activities are situated in mechanics of fiber reinforced composites under impact and fatigue loading and non destructive characterization of the elastic properties of composite laminates by means of ultrasound. He has won The Vreedenburgh Prize (TU Delft, the Netherlands, 1991) and The prize of the Belgian Royal Academy for Arts, Letters and Sciences—Class Sciences (1991).
He is a member of The Flemish Engineering Association KVIV, The Society for the Advancement of Material and Process Engineering, The Materials and Processes Society SAMPE, The Belgian Research Centre for Pipes and Equipment Becetel, The Belgian Society of Mechanical and Environmental Engineering BSMEE, member and council member of The European Society for Composite Materials ESCM and is an affiliate member of The Institute of Materials. At present, he is the Head of the Department of Mechanical Construction and Production (Soete Laboratory) at the Ghent University. He is referee for several journals and contractor for numerous companies.
Joris Degrieck was born in Veurne (Belgium) on the 10th of February 1959 and obtained an M.Sc. in Mechanical Engineering and a Ph.D. in Applied Science (Mechanical Engineering) at the Ghent University. From 1986–1991 he has been assistant and lecturer at the Ghent University. From 1991–1996, he has been a research engineer and project leader at the Research Institute of the Belgian Metalworking Industries (WTCM-CRIF). From 1993 until present, he has been respectively part time professor, teaching “Mechanics of Fibre Reinforced Materials” and professor, teaching “Composite Materials”, “Mechanics of Materials”, and “Kinematics and Dynamics of Mechanisms” at the Ghent University. His main research activities are situated in mechanics of fiber reinforced composites under impact and fatigue loading and non destructive characterization of the elastic properties of composite laminates by means of ultrasound. He has won The Vreedenburgh Prize (TU Delft, the Netherlands, 1991) and The prize of the Belgian Royal Academy for Arts, Letters and Sciences—Class Sciences (1991).
He is a member of The Flemish Engineering Association KVIV, The Society for the Advancement of Material and Process Engineering, The Materials and Processes Society SAMPE, The Belgian Research Centre for Pipes and Equipment Becetel, The Belgian Society of Mechanical and Environmental Engineering BSMEE, member and council member of The European Society for Composite Materials ESCM and is an affiliate member of The Institute of Materials. At present, he is the Head of the Department of Mechanical Construction and Production (Soete Laboratory) at the Ghent University. He is referee for several journals and contractor for numerous companies.View more
Author image of G.N. Shkerdin
Institute of Radioengineering and Electronics, Russian Academy of Science, Moscow, Russia
Gennady N. Shkerdin was born in vil. Leonidovka (Pensa Region, USSR) in 1946 and graduated from the Moscow Institute of Physics and Technology (MIPT) in 1971 and from the post-graduate course of MIPT in 1974 with a PhD thesis on the theory of acoustooptic interaction in conductive crystals. From 1974 on he has worked in the Institute of Radio Engineering and Electronics of the Russian Academy of Sciences (IRE RAS). Now he has the position of Head of the Laboratory. He defended the second (Russian doctoral) thesis in 1983 and received the degree of Doctor of Sciences in Physics and Mathematics. He became a professor of the Russian Academy of Sciences in 1991. His current scientific interests include acousto-optics, integrated and nonlinear optics and physical acoustics. Shkerdin authored and co-authored over 150 papers in national (Russian) and international journals. He also works as a part time professor at the Moscow Institute of Physics and Technology. He has received several grants to stay in Belgium as a visiting scientist and is the ‘Partner country coordinator’ of a NATO collaborative linkage grant.
Gennady N. Shkerdin was born in vil. Leonidovka (Pensa Region, USSR) in 1946 and graduated from the Moscow Institute of Physics and Technology (MIPT) in 1971 and from the post-graduate course of MIPT in 1974 with a PhD thesis on the theory of acoustooptic interaction in conductive crystals. From 1974 on he has worked in the Institute of Radio Engineering and Electronics of the Russian Academy of Sciences (IRE RAS). Now he has the position of Head of the Laboratory. He defended the second (Russian doctoral) thesis in 1983 and received the degree of Doctor of Sciences in Physics and Mathematics. He became a professor of the Russian Academy of Sciences in 1991. His current scientific interests include acousto-optics, integrated and nonlinear optics and physical acoustics. Shkerdin authored and co-authored over 150 papers in national (Russian) and international journals. He also works as a part time professor at the Moscow Institute of Physics and Technology. He has received several grants to stay in Belgium as a visiting scientist and is the ‘Partner country coordinator’ of a NATO collaborative linkage grant.View more

References

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