Stress Analysis of Laminated Composite and Sandwich Beams using a Novel Shear and Normal Deformation Theory

Detalhes bibliográficos
Autor(a) principal: Pawar,Eshwar G.
Data de Publicação: 2015
Outros Autores: Banerjee,Sauvik, Desai,Yogesh M.
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=S1679-78252015000701340
Resumo: AbstractA novel Normal and Shear Deformation Theory (NSDT) for analysis of laminated composite and sandwich beams, taking into account shear deformation as well as normal deformation, is developed. The paper investigates flexural behaviors of thick laminated and sandwich beams under plane stress conditions using NSDT. A generalized displacement-based refined formulation is elucidated with inclusion of various warping functions in terms of thickness coordinates to represent shear and normal deformation effects. These effects become pronounced in thick laminated beams and particularly in sandwich beams with transversely flexible core. Present formulation satisfies the shear stress free surface conditions at the top and bottom surfaces of the beam with realistic through-the-thickness variation of transverse shear stresses. The results obtained are compared with higher order theories available in literature. It is observed that NSDT predicts displacement and stresses accurately compared to other higher order theories.
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spelling Stress Analysis of Laminated Composite and Sandwich Beams using a Novel Shear and Normal Deformation TheoryShear deformationtransverse flexibilitylaminated thick beamsandwich beamtransverse shear stressAbstractA novel Normal and Shear Deformation Theory (NSDT) for analysis of laminated composite and sandwich beams, taking into account shear deformation as well as normal deformation, is developed. The paper investigates flexural behaviors of thick laminated and sandwich beams under plane stress conditions using NSDT. A generalized displacement-based refined formulation is elucidated with inclusion of various warping functions in terms of thickness coordinates to represent shear and normal deformation effects. These effects become pronounced in thick laminated beams and particularly in sandwich beams with transversely flexible core. Present formulation satisfies the shear stress free surface conditions at the top and bottom surfaces of the beam with realistic through-the-thickness variation of transverse shear stresses. The results obtained are compared with higher order theories available in literature. It is observed that NSDT predicts displacement and stresses accurately compared to other higher order theories.Associação Brasileira de Ciências Mecânicas2015-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252015000701340Latin American Journal of Solids and Structures v.12 n.7 2015reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78251470info:eu-repo/semantics/openAccessPawar,Eshwar G.Banerjee,SauvikDesai,Yogesh M.eng2015-11-11T00:00:00Zoai:scielo:S1679-78252015000701340Revistahttp://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:2015-11-11T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false
dc.title.none.fl_str_mv Stress Analysis of Laminated Composite and Sandwich Beams using a Novel Shear and Normal Deformation Theory
title Stress Analysis of Laminated Composite and Sandwich Beams using a Novel Shear and Normal Deformation Theory
spellingShingle Stress Analysis of Laminated Composite and Sandwich Beams using a Novel Shear and Normal Deformation Theory
Pawar,Eshwar G.
Shear deformation
transverse flexibility
laminated thick beam
sandwich beam
transverse shear stress
title_short Stress Analysis of Laminated Composite and Sandwich Beams using a Novel Shear and Normal Deformation Theory
title_full Stress Analysis of Laminated Composite and Sandwich Beams using a Novel Shear and Normal Deformation Theory
title_fullStr Stress Analysis of Laminated Composite and Sandwich Beams using a Novel Shear and Normal Deformation Theory
title_full_unstemmed Stress Analysis of Laminated Composite and Sandwich Beams using a Novel Shear and Normal Deformation Theory
title_sort Stress Analysis of Laminated Composite and Sandwich Beams using a Novel Shear and Normal Deformation Theory
author Pawar,Eshwar G.
author_facet Pawar,Eshwar G.
Banerjee,Sauvik
Desai,Yogesh M.
author_role author
author2 Banerjee,Sauvik
Desai,Yogesh M.
author2_role author
author
dc.contributor.author.fl_str_mv Pawar,Eshwar G.
Banerjee,Sauvik
Desai,Yogesh M.
dc.subject.por.fl_str_mv Shear deformation
transverse flexibility
laminated thick beam
sandwich beam
transverse shear stress
topic Shear deformation
transverse flexibility
laminated thick beam
sandwich beam
transverse shear stress
description AbstractA novel Normal and Shear Deformation Theory (NSDT) for analysis of laminated composite and sandwich beams, taking into account shear deformation as well as normal deformation, is developed. The paper investigates flexural behaviors of thick laminated and sandwich beams under plane stress conditions using NSDT. A generalized displacement-based refined formulation is elucidated with inclusion of various warping functions in terms of thickness coordinates to represent shear and normal deformation effects. These effects become pronounced in thick laminated beams and particularly in sandwich beams with transversely flexible core. Present formulation satisfies the shear stress free surface conditions at the top and bottom surfaces of the beam with realistic through-the-thickness variation of transverse shear stresses. The results obtained are compared with higher order theories available in literature. It is observed that NSDT predicts displacement and stresses accurately compared to other higher order theories.
publishDate 2015
dc.date.none.fl_str_mv 2015-07-01
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=S1679-78252015000701340
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252015000701340
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1679-78251470
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.12 n.7 2015
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
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