Ultrasonic Scattering Attenuation in Nodular Cast Iron: Experimental and Simulation Studies
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/105482 https://doi.org/10.5545/sv-jme.2020.7078 |
Resumo: | This work evaluates the ultrasonic scattering attenuation of structures with complex scatterer distributions via experimental and simulation studies. The proposed approach uses experimental attenuation knowledge to infer the scatterer size and its concentration in the studied structures, which are important for the effective construction of simulated models. The MATLAB k-Wave toolbox has been used to implement the simulator. Several cast-iron samples have been used to demonstrate the importance of simulation in the characterization of such structures. First, the scattering attenuation was evaluated using the Truell and Papadakis models, and then the results were compared with experimental ones. Emphasis was given to the Papadakis approach because it takes into account the scatterer size distribution. It is demonstrated that both analytical models provide results that are far from the experimental ones. The developed simulator for the studied samples led to a predictive model, in which the attenuation was proportional to the fifth power of the scatterer size, and the corresponding formulation is close to the one proposed by the analytical models. |
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Ultrasonic Scattering Attenuation in Nodular Cast Iron: Experimental and Simulation Studiesmodellinganisotropypulse-echosimulationultrasonic attenuationThis work evaluates the ultrasonic scattering attenuation of structures with complex scatterer distributions via experimental and simulation studies. The proposed approach uses experimental attenuation knowledge to infer the scatterer size and its concentration in the studied structures, which are important for the effective construction of simulated models. The MATLAB k-Wave toolbox has been used to implement the simulator. Several cast-iron samples have been used to demonstrate the importance of simulation in the characterization of such structures. First, the scattering attenuation was evaluated using the Truell and Papadakis models, and then the results were compared with experimental ones. Emphasis was given to the Papadakis approach because it takes into account the scatterer size distribution. It is demonstrated that both analytical models provide results that are far from the experimental ones. The developed simulator for the studied samples led to a predictive model, in which the attenuation was proportional to the fifth power of the scatterer size, and the corresponding formulation is close to the one proposed by the analytical models.Univerza v Ljubljani2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/105482http://hdl.handle.net/10316/105482https://doi.org/10.5545/sv-jme.2020.7078eng00392480Santos, MárioSantos, Jaimeinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-02T09:39:32Zoai:estudogeral.uc.pt:10316/105482Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:22:02.846885Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Ultrasonic Scattering Attenuation in Nodular Cast Iron: Experimental and Simulation Studies |
title |
Ultrasonic Scattering Attenuation in Nodular Cast Iron: Experimental and Simulation Studies |
spellingShingle |
Ultrasonic Scattering Attenuation in Nodular Cast Iron: Experimental and Simulation Studies Santos, Mário modelling anisotropy pulse-echo simulation ultrasonic attenuation |
title_short |
Ultrasonic Scattering Attenuation in Nodular Cast Iron: Experimental and Simulation Studies |
title_full |
Ultrasonic Scattering Attenuation in Nodular Cast Iron: Experimental and Simulation Studies |
title_fullStr |
Ultrasonic Scattering Attenuation in Nodular Cast Iron: Experimental and Simulation Studies |
title_full_unstemmed |
Ultrasonic Scattering Attenuation in Nodular Cast Iron: Experimental and Simulation Studies |
title_sort |
Ultrasonic Scattering Attenuation in Nodular Cast Iron: Experimental and Simulation Studies |
author |
Santos, Mário |
author_facet |
Santos, Mário Santos, Jaime |
author_role |
author |
author2 |
Santos, Jaime |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Santos, Mário Santos, Jaime |
dc.subject.por.fl_str_mv |
modelling anisotropy pulse-echo simulation ultrasonic attenuation |
topic |
modelling anisotropy pulse-echo simulation ultrasonic attenuation |
description |
This work evaluates the ultrasonic scattering attenuation of structures with complex scatterer distributions via experimental and simulation studies. The proposed approach uses experimental attenuation knowledge to infer the scatterer size and its concentration in the studied structures, which are important for the effective construction of simulated models. The MATLAB k-Wave toolbox has been used to implement the simulator. Several cast-iron samples have been used to demonstrate the importance of simulation in the characterization of such structures. First, the scattering attenuation was evaluated using the Truell and Papadakis models, and then the results were compared with experimental ones. Emphasis was given to the Papadakis approach because it takes into account the scatterer size distribution. It is demonstrated that both analytical models provide results that are far from the experimental ones. The developed simulator for the studied samples led to a predictive model, in which the attenuation was proportional to the fifth power of the scatterer size, and the corresponding formulation is close to the one proposed by the analytical models. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/105482 http://hdl.handle.net/10316/105482 https://doi.org/10.5545/sv-jme.2020.7078 |
url |
http://hdl.handle.net/10316/105482 https://doi.org/10.5545/sv-jme.2020.7078 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
00392480 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Univerza v Ljubljani |
publisher.none.fl_str_mv |
Univerza v Ljubljani |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799134110777606144 |