Airborne non-contact and contact broadband ultrasounds for frequency attenuation profile estimation of cementitious materials
dc.contributor.author | Gosálbez, J. | |
dc.contributor.author | Wright, William M. D. | |
dc.contributor.author | Jiang, W. | |
dc.contributor.author | Carrión, A. | |
dc.contributor.author | Genovés, V. | |
dc.contributor.author | Bosch, I. | |
dc.contributor.funder | University College Cork | en |
dc.contributor.funder | Ministerio de Educación, Cultura y Deporte | en |
dc.contributor.funder | Universitat Politècnica de València | en |
dc.contributor.funder | General State Administration of Spain | |
dc.date.accessioned | 2018-04-05T10:52:53Z | |
dc.date.available | 2018-04-05T10:52:53Z | |
dc.date.issued | 2018-03-28 | |
dc.date.updated | 2018-04-03T11:45:54Z | |
dc.description.abstract | In this paper, the study of frequency-dependent ultrasonic attenuation in strongly heterogeneous cementitious materials is addressed. To accurately determine the attenuation over a wide frequency range, it is necessary to have suitable excitation techniques. We have analysed two kinds of ultrasound techniques: contact ultrasound and airborne non-contact ultrasound. The mathematical formulation for frequency-dependent attenuation has been established and it has been revealed that each technique may achieve similar results but requires specific different calibration processes. In particular, the airborne non-contact technique suffers high attenuation due to energy losses at the air-material interfaces. Thus, its bandwidth is limited to low frequencies but it does not require physical contact between transducer and specimen. In contrast, the classical contact technique can manage higher frequencies but the measurement depends on the pressure between the transducer and the specimen. Cement specimens have been tested with both techniques and frequency attenuation dependence has been estimated. Similar results were achieved at overlapping bandwidth and it has been demonstrated that the airborne non-contact ultrasound technique could be a viable alternative to the classical contact technique. | en |
dc.description.sponsorship | Ministerio de Educación, Cultura y Deporte (Salvador Madariaga’s Programme PR2016-00344 / PR2017-00658); General State Administration of Spain (grant BIA2014-55311-C2-2-P) | en |
dc.description.status | Peer reviewed | en |
dc.description.version | Accepted Version | en |
dc.format.mimetype | application/pdf | en |
dc.identifier.citation | Gosálbez, J., Wright, W. M. D., Jiang, W., Carrión, A., Genovés, V. and Bosch, I. (2018) ‘Airborne non-contact and contact broadband ultrasounds for frequency attenuation profile estimation of cementitious materials’, Ultrasonics. doi:10.1016/j.ultras.2018.03.011 | en |
dc.identifier.doi | 10.1016/j.ultras.2018.03.011 | |
dc.identifier.issn | 0041-624X | |
dc.identifier.issn | 1874-9968 | |
dc.identifier.journaltitle | Ultrasonics | en |
dc.identifier.uri | https://hdl.handle.net/10468/5740 | |
dc.language.iso | en | en |
dc.publisher | Elsevier B.V. | en |
dc.rights | © 2018, Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license. | en |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | en |
dc.subject | Airborne ultrasound | en |
dc.subject | Attenuation | en |
dc.subject | Broadband signal | en |
dc.subject | Ultrasound | en |
dc.subject | Concrete | en |
dc.subject | Non-contact ultrasound | en |
dc.title | Airborne non-contact and contact broadband ultrasounds for frequency attenuation profile estimation of cementitious materials | en |
dc.type | Article (peer-reviewed) | en |