Time-reversal methods for acousto-elastic equations and applications

Franck Assous; Moshe Lin

Time-reversal methods for acousto-elastic equations and applications

Franck Assous, Moshe Lin

Ariel University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Time reversal (TR) is a subject of very active research. The principle is to take advantage of the reversibility of wave propagation phenomena, for example in acoustics, elastic or electromagnetism in an unknown medium, to back-propagate signals to the sources that emitted them. In a previous paper [1], we introduced a time-reversed method for acoustic equation. In this paper, our aim is to extend this approach to elastodynamics equations. As the application we have in mind are concerned with ultrasound-based elasticity imaging methods, we consider both elastic and acousto-elastic systems of equations. We stress that our method does not rely on any a priori knowledge of the physical properties of the inclusion.

Original language	English
Title of host publication	Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017
Editors	Manolis Papadrakakis, Eugenio Onate, Bernhard A. Schrefler
Publisher	International Center for Numerical Methods in Engineering
Pages	972-980
Number of pages	9
ISBN (Electronic)	9788494690921
State	Published - 2017
Externally published	Yes
Event	7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017 - Rhodes Islad, Greece Duration: 12 Jun 2017 → 14 Jun 2017

Publication series

Name	Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017
Volume	2017-January

Conference

Conference	7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017
Country/Territory	Greece
City	Rhodes Islad
Period	12/06/17 → 14/06/17

Bibliographical note

Publisher Copyright:
© 2017 International Center for Numerical Methods in Engineering. All rights reserved.

Keywords

Elastodynamics
Finite element
Inverse problems
Time reverse
Wave propagation

Cite this

Assous, F., & Lin, M. (2017). Time-reversal methods for acousto-elastic equations and applications. In M. Papadrakakis, E. Onate, & B. A. Schrefler (Eds.), Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017 (pp. 972-980). (Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017; Vol. 2017-January). International Center for Numerical Methods in Engineering.

Assous, Franck ; Lin, Moshe. / Time-reversal methods for acousto-elastic equations and applications. Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017. editor / Manolis Papadrakakis ; Eugenio Onate ; Bernhard A. Schrefler. International Center for Numerical Methods in Engineering, 2017. pp. 972-980 (Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017).

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Assous, F & Lin, M 2017, Time-reversal methods for acousto-elastic equations and applications. in M Papadrakakis, E Onate & BA Schrefler (eds), Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017. Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017, vol. 2017-January, International Center for Numerical Methods in Engineering, pp. 972-980, 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017, Rhodes Islad, Greece, 12/06/17.

Time-reversal methods for acousto-elastic equations and applications. / Assous, Franck; Lin, Moshe.
Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017. ed. / Manolis Papadrakakis; Eugenio Onate; Bernhard A. Schrefler. International Center for Numerical Methods in Engineering, 2017. p. 972-980 (Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017; Vol. 2017-January).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Assous F, Lin M. Time-reversal methods for acousto-elastic equations and applications. In Papadrakakis M, Onate E, Schrefler BA, editors, Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017. International Center for Numerical Methods in Engineering. 2017. p. 972-980. (Proceedings of the 7th International Conference on Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2017).

Time-reversal methods for acousto-elastic equations and applications

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