Finite element evaluation of the effects of curvature in Lamb waves for composites structural health monitoring

Detalhes bibliográficos
Autor(a) principal: Santana,Guilherme André
Data de Publicação: 2018
Outros Autores: Malekan,Mohammad, Araújo,Alexandre Martins, Donadon,Lázaro Valentim, Cimini Jr,Carlos Alberto
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=S1679-78252018001000507
Resumo: Abstract This work presents the effect of the high curvature to thickness ratio on the characteristics of Lamb Waves propagating over the skins of composite structures. It is accessed how the curvature on composite skins affects the group velocity of the symmetrical (S0) and asymmetrical (A0) wave modes. It is also accessed the gradient of curvature effect, when the wave propagates from a flat to a curved part on the skin. The results are intended to be used for the improvement of structural health monitoring of wings and wind turbine blades. This is accomplished through dynamic explicit linear finite element method simulations of plates with flat and curved parts made of Eglass-epoxy bidirectional laminate. As the skin structures are often designed to withstand torsional loads, the fibers are aligned with 45 degrees from the leading edge (curved region) throughout the analysis. Several skins with different curvature to thickness ratios are generated and simulated. Results and trends are presented and can be used to improve the algorithms for damage detection on those structures. It is shown that the group velocity of the incoming waves change considerably with the presence of curvature, for both main modes of vibration.
id ABCM-1_7e5ce39c1e6e27d20b0df7a574075e2d
oai_identifier_str oai:scielo:S1679-78252018001000507
network_acronym_str ABCM-1
network_name_str Latin American journal of solids and structures (Online)
repository_id_str
spelling Finite element evaluation of the effects of curvature in Lamb waves for composites structural health monitoringTDFEMLamb wavescurvatureglass fibercompositesGFRPSHMAbstract This work presents the effect of the high curvature to thickness ratio on the characteristics of Lamb Waves propagating over the skins of composite structures. It is accessed how the curvature on composite skins affects the group velocity of the symmetrical (S0) and asymmetrical (A0) wave modes. It is also accessed the gradient of curvature effect, when the wave propagates from a flat to a curved part on the skin. The results are intended to be used for the improvement of structural health monitoring of wings and wind turbine blades. This is accomplished through dynamic explicit linear finite element method simulations of plates with flat and curved parts made of Eglass-epoxy bidirectional laminate. As the skin structures are often designed to withstand torsional loads, the fibers are aligned with 45 degrees from the leading edge (curved region) throughout the analysis. Several skins with different curvature to thickness ratios are generated and simulated. Results and trends are presented and can be used to improve the algorithms for damage detection on those structures. It is shown that the group velocity of the incoming waves change considerably with the presence of curvature, for both main modes of vibration.Associação Brasileira de Ciências Mecânicas2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252018001000507Latin American Journal of Solids and Structures v.15 n.10 2018reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78255193info:eu-repo/semantics/openAccessSantana,Guilherme AndréMalekan,MohammadAraújo,Alexandre MartinsDonadon,Lázaro ValentimCimini Jr,Carlos Albertoeng2018-10-08T00:00:00Zoai:scielo:S1679-78252018001000507Revistahttp://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:2018-10-08T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false
dc.title.none.fl_str_mv Finite element evaluation of the effects of curvature in Lamb waves for composites structural health monitoring
title Finite element evaluation of the effects of curvature in Lamb waves for composites structural health monitoring
spellingShingle Finite element evaluation of the effects of curvature in Lamb waves for composites structural health monitoring
Santana,Guilherme André
TDFEM
Lamb waves
curvature
glass fiber
composites
GFRP
SHM
title_short Finite element evaluation of the effects of curvature in Lamb waves for composites structural health monitoring
title_full Finite element evaluation of the effects of curvature in Lamb waves for composites structural health monitoring
title_fullStr Finite element evaluation of the effects of curvature in Lamb waves for composites structural health monitoring
title_full_unstemmed Finite element evaluation of the effects of curvature in Lamb waves for composites structural health monitoring
title_sort Finite element evaluation of the effects of curvature in Lamb waves for composites structural health monitoring
author Santana,Guilherme André
author_facet Santana,Guilherme André
Malekan,Mohammad
Araújo,Alexandre Martins
Donadon,Lázaro Valentim
Cimini Jr,Carlos Alberto
author_role author
author2 Malekan,Mohammad
Araújo,Alexandre Martins
Donadon,Lázaro Valentim
Cimini Jr,Carlos Alberto
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Santana,Guilherme André
Malekan,Mohammad
Araújo,Alexandre Martins
Donadon,Lázaro Valentim
Cimini Jr,Carlos Alberto
dc.subject.por.fl_str_mv TDFEM
Lamb waves
curvature
glass fiber
composites
GFRP
SHM
topic TDFEM
Lamb waves
curvature
glass fiber
composites
GFRP
SHM
description Abstract This work presents the effect of the high curvature to thickness ratio on the characteristics of Lamb Waves propagating over the skins of composite structures. It is accessed how the curvature on composite skins affects the group velocity of the symmetrical (S0) and asymmetrical (A0) wave modes. It is also accessed the gradient of curvature effect, when the wave propagates from a flat to a curved part on the skin. The results are intended to be used for the improvement of structural health monitoring of wings and wind turbine blades. This is accomplished through dynamic explicit linear finite element method simulations of plates with flat and curved parts made of Eglass-epoxy bidirectional laminate. As the skin structures are often designed to withstand torsional loads, the fibers are aligned with 45 degrees from the leading edge (curved region) throughout the analysis. Several skins with different curvature to thickness ratios are generated and simulated. Results and trends are presented and can be used to improve the algorithms for damage detection on those structures. It is shown that the group velocity of the incoming waves change considerably with the presence of curvature, for both main modes of vibration.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
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=S1679-78252018001000507
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252018001000507
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1679-78255193
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.15 n.10 2018
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_ 1754302889677815808