Computational modeling of RTM and LRTM processes applied to complex geometries
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/4986 |
Resumo: | Light Resin Transfer Molding (LRTM) is a variation of the conventional manufacturing process known as Resin Transfer Molding (RTM). In general terms, these manufacturing processes consist of a closed mould with a preplaced fibrous preform through which a polymeric resin is injected, filling the mold completely, producing parts with complex geometries (in general) and good finish. Those processes differ, among other aspects, in the way that injection occurs. In the RTM process the resin is injected through discrete points whereas in LRTM it is injected into an empty channel (with no porous medium) which surrounds the entire mold perimeter. There are several numerical studies involving the RTM process but LRTM has not been explored enough by the scientific community. Based on that, this work proposes a numerical model developed in the FLUENT package to study the resin flow behavior in the LRTM process. Darcy’s law and Volume of Fluid method (VOF) are used to treat the interaction between air and resin during the flow in the porous medium, i.e. the mold filling problem. Moreover, two three-dimensional geometries were numerically simulated considering the RTM and LRTM processes. It was possible to note the huge differences about resin flow behavior and filling time between these processes to manufacture the same parts. |
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Computational modeling of RTM and LRTM processes applied to complex geometriesLRTMRTMComputational modelingNumerical simulationLight Resin Transfer Molding (LRTM) is a variation of the conventional manufacturing process known as Resin Transfer Molding (RTM). In general terms, these manufacturing processes consist of a closed mould with a preplaced fibrous preform through which a polymeric resin is injected, filling the mold completely, producing parts with complex geometries (in general) and good finish. Those processes differ, among other aspects, in the way that injection occurs. In the RTM process the resin is injected through discrete points whereas in LRTM it is injected into an empty channel (with no porous medium) which surrounds the entire mold perimeter. There are several numerical studies involving the RTM process but LRTM has not been explored enough by the scientific community. Based on that, this work proposes a numerical model developed in the FLUENT package to study the resin flow behavior in the LRTM process. Darcy’s law and Volume of Fluid method (VOF) are used to treat the interaction between air and resin during the flow in the porous medium, i.e. the mold filling problem. Moreover, two three-dimensional geometries were numerically simulated considering the RTM and LRTM processes. It was possible to note the huge differences about resin flow behavior and filling time between these processes to manufacture the same parts.2015-06-03T14:32:31Z2015-06-03T14:32:31Z2012info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPORTO, Joseane da Silva et al. Computational modeling of RTM and LRTM processes applied to complex geometries. Engenharia Térmica (Thermal Engineering), v. 11, n. 1-2, p. 93-99, 2012. Disponível em: <http://demec.ufpr.br/reterm/ed_ant/19/artigos/261-2012.pdf>. Acesso em: 1 jun. 2015.1676-1790http://repositorio.furg.br/handle/1/4986engPorto, Joseane da SilvaLetzow, MaxSantos, Elizaldo Domingues dosAmico, Sandro CamposSouza, Jeferson AvilaIsoldi, Liércio Andréinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2015-06-03T14:32:31Zoai:repositorio.furg.br:1/4986Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2015-06-03T14:32:31Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Computational modeling of RTM and LRTM processes applied to complex geometries |
title |
Computational modeling of RTM and LRTM processes applied to complex geometries |
spellingShingle |
Computational modeling of RTM and LRTM processes applied to complex geometries Porto, Joseane da Silva LRTM RTM Computational modeling Numerical simulation |
title_short |
Computational modeling of RTM and LRTM processes applied to complex geometries |
title_full |
Computational modeling of RTM and LRTM processes applied to complex geometries |
title_fullStr |
Computational modeling of RTM and LRTM processes applied to complex geometries |
title_full_unstemmed |
Computational modeling of RTM and LRTM processes applied to complex geometries |
title_sort |
Computational modeling of RTM and LRTM processes applied to complex geometries |
author |
Porto, Joseane da Silva |
author_facet |
Porto, Joseane da Silva Letzow, Max Santos, Elizaldo Domingues dos Amico, Sandro Campos Souza, Jeferson Avila Isoldi, Liércio André |
author_role |
author |
author2 |
Letzow, Max Santos, Elizaldo Domingues dos Amico, Sandro Campos Souza, Jeferson Avila Isoldi, Liércio André |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Porto, Joseane da Silva Letzow, Max Santos, Elizaldo Domingues dos Amico, Sandro Campos Souza, Jeferson Avila Isoldi, Liércio André |
dc.subject.por.fl_str_mv |
LRTM RTM Computational modeling Numerical simulation |
topic |
LRTM RTM Computational modeling Numerical simulation |
description |
Light Resin Transfer Molding (LRTM) is a variation of the conventional manufacturing process known as Resin Transfer Molding (RTM). In general terms, these manufacturing processes consist of a closed mould with a preplaced fibrous preform through which a polymeric resin is injected, filling the mold completely, producing parts with complex geometries (in general) and good finish. Those processes differ, among other aspects, in the way that injection occurs. In the RTM process the resin is injected through discrete points whereas in LRTM it is injected into an empty channel (with no porous medium) which surrounds the entire mold perimeter. There are several numerical studies involving the RTM process but LRTM has not been explored enough by the scientific community. Based on that, this work proposes a numerical model developed in the FLUENT package to study the resin flow behavior in the LRTM process. Darcy’s law and Volume of Fluid method (VOF) are used to treat the interaction between air and resin during the flow in the porous medium, i.e. the mold filling problem. Moreover, two three-dimensional geometries were numerically simulated considering the RTM and LRTM processes. It was possible to note the huge differences about resin flow behavior and filling time between these processes to manufacture the same parts. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012 2015-06-03T14:32:31Z 2015-06-03T14:32:31Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
PORTO, Joseane da Silva et al. Computational modeling of RTM and LRTM processes applied to complex geometries. Engenharia Térmica (Thermal Engineering), v. 11, n. 1-2, p. 93-99, 2012. Disponível em: <http://demec.ufpr.br/reterm/ed_ant/19/artigos/261-2012.pdf>. Acesso em: 1 jun. 2015. 1676-1790 http://repositorio.furg.br/handle/1/4986 |
identifier_str_mv |
PORTO, Joseane da Silva et al. Computational modeling of RTM and LRTM processes applied to complex geometries. Engenharia Térmica (Thermal Engineering), v. 11, n. 1-2, p. 93-99, 2012. Disponível em: <http://demec.ufpr.br/reterm/ed_ant/19/artigos/261-2012.pdf>. Acesso em: 1 jun. 2015. 1676-1790 |
url |
http://repositorio.furg.br/handle/1/4986 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
|
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1807384356478517248 |