Finite element analysis for mechanical characterization of 4D inplane carbon/carbon composite with imperfect microstructure
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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=S1679-78252014000200002 |
Resumo: | Finite element mesh of multi-directional 4D carbon/carbon (C/C) composite was reconstructed from 2D images obtained by X-ray tomography. Thus, imperfections in the composite such as voids, misalignment and cross-section distortion of the fibre bundles were directly incorporated in the finite element mesh. 2D images of the composite were also used for the characterization of the porosity in the composite. The effect of these micro structural imperfections was studies by assuming perfect bonding at the bundle/matrix interface. The initial mechanical properties of the composite were obtained from unit cell analysis using asymptotic homogenization and moduli in x, y and z directions were 39, 25 and 44 GPa. However, matrix and bundle/matrix interfacial cracks were also clearly visible in the X-ray tomographic images. Later, the effects of debonding was incorporated by using frictional cohesive interaction at bundle/matrix interfaces and matrix cracking was modeled by degrading the elastic properties of matrix. Final, the response of the composite was studied under six individual load cases. |
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Latin American journal of solids and structures (Online) |
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Finite element analysis for mechanical characterization of 4D inplane carbon/carbon composite with imperfect microstructureCarbon/Carbon compositesHomogenizationX-ray tomography reconstructionImage based FEMCohesive surfacesFinite element mesh of multi-directional 4D carbon/carbon (C/C) composite was reconstructed from 2D images obtained by X-ray tomography. Thus, imperfections in the composite such as voids, misalignment and cross-section distortion of the fibre bundles were directly incorporated in the finite element mesh. 2D images of the composite were also used for the characterization of the porosity in the composite. The effect of these micro structural imperfections was studies by assuming perfect bonding at the bundle/matrix interface. The initial mechanical properties of the composite were obtained from unit cell analysis using asymptotic homogenization and moduli in x, y and z directions were 39, 25 and 44 GPa. However, matrix and bundle/matrix interfacial cracks were also clearly visible in the X-ray tomographic images. Later, the effects of debonding was incorporated by using frictional cohesive interaction at bundle/matrix interfaces and matrix cracking was modeled by degrading the elastic properties of matrix. Final, the response of the composite was studied under six individual load cases.Associação Brasileira de Ciências Mecânicas2014-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014000200002Latin American Journal of Solids and Structures v.11 n.2 2014reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/S1679-78252014000200002info:eu-repo/semantics/openAccessSharma,RajneeshBhagat,Atul RameshMahajan,Puneeteng2013-07-30T00:00:00Zoai:scielo:S1679-78252014000200002Revistahttp://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:2013-07-30T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
Finite element analysis for mechanical characterization of 4D inplane carbon/carbon composite with imperfect microstructure |
title |
Finite element analysis for mechanical characterization of 4D inplane carbon/carbon composite with imperfect microstructure |
spellingShingle |
Finite element analysis for mechanical characterization of 4D inplane carbon/carbon composite with imperfect microstructure Sharma,Rajneesh Carbon/Carbon composites Homogenization X-ray tomography reconstruction Image based FEM Cohesive surfaces |
title_short |
Finite element analysis for mechanical characterization of 4D inplane carbon/carbon composite with imperfect microstructure |
title_full |
Finite element analysis for mechanical characterization of 4D inplane carbon/carbon composite with imperfect microstructure |
title_fullStr |
Finite element analysis for mechanical characterization of 4D inplane carbon/carbon composite with imperfect microstructure |
title_full_unstemmed |
Finite element analysis for mechanical characterization of 4D inplane carbon/carbon composite with imperfect microstructure |
title_sort |
Finite element analysis for mechanical characterization of 4D inplane carbon/carbon composite with imperfect microstructure |
author |
Sharma,Rajneesh |
author_facet |
Sharma,Rajneesh Bhagat,Atul Ramesh Mahajan,Puneet |
author_role |
author |
author2 |
Bhagat,Atul Ramesh Mahajan,Puneet |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Sharma,Rajneesh Bhagat,Atul Ramesh Mahajan,Puneet |
dc.subject.por.fl_str_mv |
Carbon/Carbon composites Homogenization X-ray tomography reconstruction Image based FEM Cohesive surfaces |
topic |
Carbon/Carbon composites Homogenization X-ray tomography reconstruction Image based FEM Cohesive surfaces |
description |
Finite element mesh of multi-directional 4D carbon/carbon (C/C) composite was reconstructed from 2D images obtained by X-ray tomography. Thus, imperfections in the composite such as voids, misalignment and cross-section distortion of the fibre bundles were directly incorporated in the finite element mesh. 2D images of the composite were also used for the characterization of the porosity in the composite. The effect of these micro structural imperfections was studies by assuming perfect bonding at the bundle/matrix interface. The initial mechanical properties of the composite were obtained from unit cell analysis using asymptotic homogenization and moduli in x, y and z directions were 39, 25 and 44 GPa. However, matrix and bundle/matrix interfacial cracks were also clearly visible in the X-ray tomographic images. Later, the effects of debonding was incorporated by using frictional cohesive interaction at bundle/matrix interfaces and matrix cracking was modeled by degrading the elastic properties of matrix. Final, the response of the composite was studied under six individual load cases. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-03-01 |
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=S1679-78252014000200002 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014000200002 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1679-78252014000200002 |
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.11 n.2 2014 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_ |
1754302887284965376 |