Three-dimensional numerical modeling of RTM and LRTM processes
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 UFRGS |
Texto Completo: | http://hdl.handle.net/10183/75815 |
Resumo: | Resin Transfer Molding (RTM) is a manufacturing process in which a liquid resin is injected into a closed mold pre-loaded with a porous fibrous preform, producing complex composite parts with good surface finishing. Resin flow is a critical step in the process. In this work, the numerical study of the resin flow in RTM applications was performed employing a general Computational Fluid Dynamics software which does not have a specific RTM module, making it necessary to use the Volume of Fluid method for the filling problem solution. Examples were presented and compared with analytical, experimental and numerical results showing the validity and effectiveness of the present study, with maximum difference among these solutions of around 8%. Besides, based on the computational model for the RTM process, a new computational methodology was developed to simulate Light Resin Transfer Molding (LRTM). In this process, resin is injected into the mold through an empty injection channel (without porous medium) which runs all around the perimeter of the mold. The ability of FLUENTÒ package to simulate geometries which combine porous media regions with open (empty) regions was used. Two specific cases were simulated, showing the differences in time and behavior between RTM and LRTM processes. |
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Isoldi, Liércio AndréOliveira, Cristiano PeresRocha, Luiz Alberto OliveiraSouza, Jeferson ÁvilaAmico, Sandro Campos2013-07-11T02:22:49Z20121678-5878http://hdl.handle.net/10183/75815000858916Resin Transfer Molding (RTM) is a manufacturing process in which a liquid resin is injected into a closed mold pre-loaded with a porous fibrous preform, producing complex composite parts with good surface finishing. Resin flow is a critical step in the process. In this work, the numerical study of the resin flow in RTM applications was performed employing a general Computational Fluid Dynamics software which does not have a specific RTM module, making it necessary to use the Volume of Fluid method for the filling problem solution. Examples were presented and compared with analytical, experimental and numerical results showing the validity and effectiveness of the present study, with maximum difference among these solutions of around 8%. Besides, based on the computational model for the RTM process, a new computational methodology was developed to simulate Light Resin Transfer Molding (LRTM). In this process, resin is injected into the mold through an empty injection channel (without porous medium) which runs all around the perimeter of the mold. The ability of FLUENTÒ package to simulate geometries which combine porous media regions with open (empty) regions was used. Two specific cases were simulated, showing the differences in time and behavior between RTM and LRTM processes.application/pdfengJournal of the Brazilian Society of Mechanical Sciences and Engineering. Rio de Janeiro, RJ. Vol. 34, no. 2 (Apr./June 2012), p. 105-111CompósitosResinasModelagem computacionalResin Transfer Molding (RTM)Light Resin Transfer Molding (LRTM)Resin flowComputational modelingFLUENT® softwareThree-dimensional numerical modeling of RTM and LRTM processesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000858916.pdf000858916.pdfTexto completo (inglês)application/pdf1077899http://www.lume.ufrgs.br/bitstream/10183/75815/1/000858916.pdf92f81d8c3e6ca3e32b3a8e79fae2af75MD51TEXT000858916.pdf.txt000858916.pdf.txtExtracted Texttext/plain27325http://www.lume.ufrgs.br/bitstream/10183/75815/2/000858916.pdf.txt79c5b57e8d45df941ce8a73b6f8d155dMD52THUMBNAIL000858916.pdf.jpg000858916.pdf.jpgGenerated Thumbnailimage/jpeg1883http://www.lume.ufrgs.br/bitstream/10183/75815/3/000858916.pdf.jpg1148700f902dc21bf0d8dd3951ed34d2MD5310183/758152022-06-08 04:41:09.334541oai:www.lume.ufrgs.br:10183/75815Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-06-08T07:41:09Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Three-dimensional numerical modeling of RTM and LRTM processes |
title |
Three-dimensional numerical modeling of RTM and LRTM processes |
spellingShingle |
Three-dimensional numerical modeling of RTM and LRTM processes Isoldi, Liércio André Compósitos Resinas Modelagem computacional Resin Transfer Molding (RTM) Light Resin Transfer Molding (LRTM) Resin flow Computational modeling FLUENT® software |
title_short |
Three-dimensional numerical modeling of RTM and LRTM processes |
title_full |
Three-dimensional numerical modeling of RTM and LRTM processes |
title_fullStr |
Three-dimensional numerical modeling of RTM and LRTM processes |
title_full_unstemmed |
Three-dimensional numerical modeling of RTM and LRTM processes |
title_sort |
Three-dimensional numerical modeling of RTM and LRTM processes |
author |
Isoldi, Liércio André |
author_facet |
Isoldi, Liércio André Oliveira, Cristiano Peres Rocha, Luiz Alberto Oliveira Souza, Jeferson Ávila Amico, Sandro Campos |
author_role |
author |
author2 |
Oliveira, Cristiano Peres Rocha, Luiz Alberto Oliveira Souza, Jeferson Ávila Amico, Sandro Campos |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Isoldi, Liércio André Oliveira, Cristiano Peres Rocha, Luiz Alberto Oliveira Souza, Jeferson Ávila Amico, Sandro Campos |
dc.subject.por.fl_str_mv |
Compósitos Resinas Modelagem computacional |
topic |
Compósitos Resinas Modelagem computacional Resin Transfer Molding (RTM) Light Resin Transfer Molding (LRTM) Resin flow Computational modeling FLUENT® software |
dc.subject.eng.fl_str_mv |
Resin Transfer Molding (RTM) Light Resin Transfer Molding (LRTM) Resin flow Computational modeling FLUENT® software |
description |
Resin Transfer Molding (RTM) is a manufacturing process in which a liquid resin is injected into a closed mold pre-loaded with a porous fibrous preform, producing complex composite parts with good surface finishing. Resin flow is a critical step in the process. In this work, the numerical study of the resin flow in RTM applications was performed employing a general Computational Fluid Dynamics software which does not have a specific RTM module, making it necessary to use the Volume of Fluid method for the filling problem solution. Examples were presented and compared with analytical, experimental and numerical results showing the validity and effectiveness of the present study, with maximum difference among these solutions of around 8%. Besides, based on the computational model for the RTM process, a new computational methodology was developed to simulate Light Resin Transfer Molding (LRTM). In this process, resin is injected into the mold through an empty injection channel (without porous medium) which runs all around the perimeter of the mold. The ability of FLUENTÒ package to simulate geometries which combine porous media regions with open (empty) regions was used. Two specific cases were simulated, showing the differences in time and behavior between RTM and LRTM processes. |
publishDate |
2012 |
dc.date.issued.fl_str_mv |
2012 |
dc.date.accessioned.fl_str_mv |
2013-07-11T02:22:49Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
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http://hdl.handle.net/10183/75815 |
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1678-5878 |
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000858916 |
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http://hdl.handle.net/10183/75815 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Rio de Janeiro, RJ. Vol. 34, no. 2 (Apr./June 2012), p. 105-111 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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