Three-dimensional numerical modeling of RTM and LRTM processes

Detalhes bibliográficos
Autor(a) principal: Isoldi, Liércio André
Data de Publicação: 2012
Outros Autores: Oliveira, Cristiano Peres, Rocha, Luiz Alberto Oliveira, Souza, Jeferson Ávila, Amico, Sandro Campos
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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spelling 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.
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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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