Basic density prediction of Eucalyptus sp. through the non-destructive ultrasound technique
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/70092 |
Resumo: | This work aimed to estimate the basic density of Eucalyptus sp. wood, using the non-destructive ultrasound technique. For this, 113 specimens with nominal dimensions of 2.5 x 2.5 x 57.5 cm (tangential x radial x longitudinal) were used, being in equilibrium humidity. To perform the density estimation, the three-dimensional model that governs the propagation of longitudinal waves in isotropic solids was used. The input variables of the model were determined, being the longitudinal modulus of elasticity by static bending, the Poisson's ratio by numerical methods and the propagation velocity of the ultrasound wave by a non-destructive ultrasound testing equipment. The basic density was also obtained by the hydrostatic balance method as a reference value. The actual average basic density was 595.40 kg.m-3 and the estimated one was 591.21 kg.m-3. The estimated value had a strong correlation with the observed value with r =0.89. The estimation by the three-dimensional model showed a low error with an RMSE of 6.50% and a bias of 0.59%. The estimation of the basic density using this method obtained good precision, being similar to the resistography technique. |
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Basic density prediction of Eucalyptus sp. through the non-destructive ultrasound techniquePredição da densidade básica de Eucalyptus sp. por meio da técnica não destrutiva de ultrassomAvaliação não destrutivaMadeiraOndasDensidadeNondestructive testingWoodWavesDensityThis work aimed to estimate the basic density of Eucalyptus sp. wood, using the non-destructive ultrasound technique. For this, 113 specimens with nominal dimensions of 2.5 x 2.5 x 57.5 cm (tangential x radial x longitudinal) were used, being in equilibrium humidity. To perform the density estimation, the three-dimensional model that governs the propagation of longitudinal waves in isotropic solids was used. The input variables of the model were determined, being the longitudinal modulus of elasticity by static bending, the Poisson's ratio by numerical methods and the propagation velocity of the ultrasound wave by a non-destructive ultrasound testing equipment. The basic density was also obtained by the hydrostatic balance method as a reference value. The actual average basic density was 595.40 kg.m-3 and the estimated one was 591.21 kg.m-3. The estimated value had a strong correlation with the observed value with r =0.89. The estimation by the three-dimensional model showed a low error with an RMSE of 6.50% and a bias of 0.59%. The estimation of the basic density using this method obtained good precision, being similar to the resistography technique.Este trabalho teve o objetivo de estimar a densidade básica da madeira de Eucalyptus sp., por meio da técnica não destrutiva de ultrassom. Para tal foram usados 113 corpos de provas com dimensões nominais de 2,5 x 2,5 x 57,5 cm (tangencial x radial x longitudinal), estando na umidade de equilíbrio. Para realizar a estimação da densidade, foi usado o modelo tridimensional que rege a propagação de ondas longitudinais em sólidos isotrópicos. Foram determinadas as variáveis de entrada do modelo, sendo o módulo de elasticidade longitudinal por flexão estática, o coeficiente de Poisson por métodos numéricos e a velocidade de propagação da onda de ultrassom por um equipamento de ensaios não destrutivos de ultrassom. Também foi obtida a densidade básica pelo método da balança hidrostática como valor de referência. A densidade básica média real foi de 595,40 kg.m-3 e a estimada de 591,21 kg.m-3. O valor estimado teve forte correlação com o valor observado com r = 0,89. A estimação pelo modelo tridimensional apresentou baixo erro com RMSE de 6,50% e viés de 0,59%. A estimação da densidade básica empregando este método obteve boa precisão, sendo semelhante à técnica de resistografia.Universidade Federal de Santa Maria2023-06-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/7009210.5902/1980509870092Ciência Florestal; Vol. 33 No. 2 (2023): Publicação Contínua; e70092Ciência Florestal; v. 33 n. 2 (2023): Publicação Contínua; e700921980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/70092/61098Copyright (c) 2023 Ciência Florestalhttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessCarvalho, Romário AlvesSilva, Gilson Fernandes dainheiro, Christiano Jorge GomesHenriques, Wemerson BrunoFaria, Manoel Filipe de Medeiros de2023-07-21T03:50:28Zoai:ojs.pkp.sfu.ca:article/70092Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2023-07-21T03:50:28Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Basic density prediction of Eucalyptus sp. through the non-destructive ultrasound technique Predição da densidade básica de Eucalyptus sp. por meio da técnica não destrutiva de ultrassom |
title |
Basic density prediction of Eucalyptus sp. through the non-destructive ultrasound technique |
spellingShingle |
Basic density prediction of Eucalyptus sp. through the non-destructive ultrasound technique Carvalho, Romário Alves Avaliação não destrutiva Madeira Ondas Densidade Nondestructive testing Wood Waves Density |
title_short |
Basic density prediction of Eucalyptus sp. through the non-destructive ultrasound technique |
title_full |
Basic density prediction of Eucalyptus sp. through the non-destructive ultrasound technique |
title_fullStr |
Basic density prediction of Eucalyptus sp. through the non-destructive ultrasound technique |
title_full_unstemmed |
Basic density prediction of Eucalyptus sp. through the non-destructive ultrasound technique |
title_sort |
Basic density prediction of Eucalyptus sp. through the non-destructive ultrasound technique |
author |
Carvalho, Romário Alves |
author_facet |
Carvalho, Romário Alves Silva, Gilson Fernandes da inheiro, Christiano Jorge Gomes Henriques, Wemerson Bruno Faria, Manoel Filipe de Medeiros de |
author_role |
author |
author2 |
Silva, Gilson Fernandes da inheiro, Christiano Jorge Gomes Henriques, Wemerson Bruno Faria, Manoel Filipe de Medeiros de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Carvalho, Romário Alves Silva, Gilson Fernandes da inheiro, Christiano Jorge Gomes Henriques, Wemerson Bruno Faria, Manoel Filipe de Medeiros de |
dc.subject.por.fl_str_mv |
Avaliação não destrutiva Madeira Ondas Densidade Nondestructive testing Wood Waves Density |
topic |
Avaliação não destrutiva Madeira Ondas Densidade Nondestructive testing Wood Waves Density |
description |
This work aimed to estimate the basic density of Eucalyptus sp. wood, using the non-destructive ultrasound technique. For this, 113 specimens with nominal dimensions of 2.5 x 2.5 x 57.5 cm (tangential x radial x longitudinal) were used, being in equilibrium humidity. To perform the density estimation, the three-dimensional model that governs the propagation of longitudinal waves in isotropic solids was used. The input variables of the model were determined, being the longitudinal modulus of elasticity by static bending, the Poisson's ratio by numerical methods and the propagation velocity of the ultrasound wave by a non-destructive ultrasound testing equipment. The basic density was also obtained by the hydrostatic balance method as a reference value. The actual average basic density was 595.40 kg.m-3 and the estimated one was 591.21 kg.m-3. The estimated value had a strong correlation with the observed value with r =0.89. The estimation by the three-dimensional model showed a low error with an RMSE of 6.50% and a bias of 0.59%. The estimation of the basic density using this method obtained good precision, being similar to the resistography technique. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-06-21 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/70092 10.5902/1980509870092 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/70092 |
identifier_str_mv |
10.5902/1980509870092 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/70092/61098 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Ciência Florestal http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Ciência Florestal http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 33 No. 2 (2023): Publicação Contínua; e70092 Ciência Florestal; v. 33 n. 2 (2023): Publicação Contínua; e70092 1980-5098 0103-9954 reponame:Ciência Florestal (Online) instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
_version_ |
1799944124297641984 |