A New Approach for Severity Estimation of Transversal Cracks in Multi-layered Beams

Detalhes bibliográficos
Autor(a) principal: Gillich,Gilbert-Rainer
Data de Publicação: 2016
Outros Autores: Maia,Nuno M. M., Mituletu,Ion-Cornel, Tufoi,Marius, Iancu,Vasile, Korka,Zoltan
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.
id ABCM-1_78484de4fa92525a9447806ee6b3390e
oai_identifier_str oai:scielo:S1679-78252016000801526
network_acronym_str ABCM-1
network_name_str Latin American journal of solids and structures (Online)
repository_id_str
spelling 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