A New Approach for Severity Estimation of Transversal Cracks in Multi-layered Beams
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Latin American journal of solids and structures (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252016000801526 |
Resumo: | Abstract Nowadays, the damage severity evaluation in mechanical structures is mostly performed by analyzing the natural frequency shift. The non-isotropic materials, as the multi-layered ones, are wide-spread in industrial applications, due to their interesting physic-mechanical properties. Thus, a deeper approach of multi-layered beams becomes an important request in the research domain. This paper introduces a damage severity estimator by expressing the crack evolution as a function of stored energy. It is well known that the energy stored in a beam without damage is greater than the energy of that damaged beam. As a consequence, the beam deflection can be related to the stored energy. In this regard, the possibility to split the damage localization and the damage severity assessment has been proven, and also the graphical evolution of the natural frequency shift has been achieved as a function of the crack depth. The results achieved by the finite element method (FEM) and experimental tests are given in tables and graphics. For the first five vibration modes, a comparison was made between frequencies accomplished by analytical, numerical and experimental analyses, in order to give more credibility to the accuracy of the research data presented in this paper. |
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Latin American journal of solids and structures (Online) |
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A New Approach for Severity Estimation of Transversal Cracks in Multi-layered BeamsMulti-layered beamDamage localizationDamage severityStored energyNatural frequency shiftVibration-based damage detectionAbstract Nowadays, the damage severity evaluation in mechanical structures is mostly performed by analyzing the natural frequency shift. The non-isotropic materials, as the multi-layered ones, are wide-spread in industrial applications, due to their interesting physic-mechanical properties. Thus, a deeper approach of multi-layered beams becomes an important request in the research domain. This paper introduces a damage severity estimator by expressing the crack evolution as a function of stored energy. It is well known that the energy stored in a beam without damage is greater than the energy of that damaged beam. As a consequence, the beam deflection can be related to the stored energy. In this regard, the possibility to split the damage localization and the damage severity assessment has been proven, and also the graphical evolution of the natural frequency shift has been achieved as a function of the crack depth. The results achieved by the finite element method (FEM) and experimental tests are given in tables and graphics. For the first five vibration modes, a comparison was made between frequencies accomplished by analytical, numerical and experimental analyses, in order to give more credibility to the accuracy of the research data presented in this paper.Associação Brasileira de Ciências Mecânicas2016-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252016000801526Latin American Journal of Solids and Structures v.13 n.8 2016reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78252541info:eu-repo/semantics/openAccessGillich,Gilbert-RainerMaia,Nuno M. M.Mituletu,Ion-CornelTufoi,MariusIancu,VasileKorka,Zoltaneng2016-09-06T00:00:00Zoai:scielo:S1679-78252016000801526Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2016-09-06T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
A New Approach for Severity Estimation of Transversal Cracks in Multi-layered Beams |
title |
A New Approach for Severity Estimation of Transversal Cracks in Multi-layered Beams |
spellingShingle |
A New Approach for Severity Estimation of Transversal Cracks in Multi-layered Beams Gillich,Gilbert-Rainer Multi-layered beam Damage localization Damage severity Stored energy Natural frequency shift Vibration-based damage detection |
title_short |
A New Approach for Severity Estimation of Transversal Cracks in Multi-layered Beams |
title_full |
A New Approach for Severity Estimation of Transversal Cracks in Multi-layered Beams |
title_fullStr |
A New Approach for Severity Estimation of Transversal Cracks in Multi-layered Beams |
title_full_unstemmed |
A New Approach for Severity Estimation of Transversal Cracks in Multi-layered Beams |
title_sort |
A New Approach for Severity Estimation of Transversal Cracks in Multi-layered Beams |
author |
Gillich,Gilbert-Rainer |
author_facet |
Gillich,Gilbert-Rainer Maia,Nuno M. M. Mituletu,Ion-Cornel Tufoi,Marius Iancu,Vasile Korka,Zoltan |
author_role |
author |
author2 |
Maia,Nuno M. M. Mituletu,Ion-Cornel Tufoi,Marius Iancu,Vasile Korka,Zoltan |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Gillich,Gilbert-Rainer Maia,Nuno M. M. Mituletu,Ion-Cornel Tufoi,Marius Iancu,Vasile Korka,Zoltan |
dc.subject.por.fl_str_mv |
Multi-layered beam Damage localization Damage severity Stored energy Natural frequency shift Vibration-based damage detection |
topic |
Multi-layered beam Damage localization Damage severity Stored energy Natural frequency shift Vibration-based damage detection |
description |
Abstract Nowadays, the damage severity evaluation in mechanical structures is mostly performed by analyzing the natural frequency shift. The non-isotropic materials, as the multi-layered ones, are wide-spread in industrial applications, due to their interesting physic-mechanical properties. Thus, a deeper approach of multi-layered beams becomes an important request in the research domain. This paper introduces a damage severity estimator by expressing the crack evolution as a function of stored energy. It is well known that the energy stored in a beam without damage is greater than the energy of that damaged beam. As a consequence, the beam deflection can be related to the stored energy. In this regard, the possibility to split the damage localization and the damage severity assessment has been proven, and also the graphical evolution of the natural frequency shift has been achieved as a function of the crack depth. The results achieved by the finite element method (FEM) and experimental tests are given in tables and graphics. For the first five vibration modes, a comparison was made between frequencies accomplished by analytical, numerical and experimental analyses, in order to give more credibility to the accuracy of the research data presented in this paper. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252016000801526 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252016000801526 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1679-78252541 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
dc.source.none.fl_str_mv |
Latin American Journal of Solids and Structures v.13 n.8 2016 reponame:Latin American journal of solids and structures (Online) instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) instacron:ABCM |
instname_str |
Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
instacron_str |
ABCM |
institution |
ABCM |
reponame_str |
Latin American journal of solids and structures (Online) |
collection |
Latin American journal of solids and structures (Online) |
repository.name.fl_str_mv |
Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
repository.mail.fl_str_mv |
abcm@abcm.org.br||maralves@usp.br |
_version_ |
1754302888473001984 |