Numerical analysis of promoted polyester and vinylester reinforced composites in RTM molds. (resin transfer molding): An article from: Polymer Engineering and Science
Book Details
Author(s)A. Yousefi, P.G. Lafleur, R. Gauvin
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB00097MXO0
ISBN-13978B00097MXO8
AvailabilityAvailable for download now
Sales Rank99,999,999
MarketplaceUnited States 🇺🇸
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on May 1, 1997. The length of the article is 6225 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: This article presents a one-dimensional simulation of the post-filling period in the resin transfer molding (RTM) process. In this work, transient heat conduction and kinetic of cure equations were solved simultaneously using the Galerkin finite element method. The kinetic models employed in this study were developed with regard to the effects of additives frequently used in the formulation of composite parts (e.g., promoting agents and reinforcements). These specialized kinetic models enabled us to predict the influence of incorporated reinforcement on the process variables, e.g., gel time and demold time, and on the distributions of temperature and extent of cure in through-the-thickness direction of the polyester-based and vinylester-based composites. It was shown that in the case of vinylester, the incorporation of glass fibers gave rise to a severe inhibition of the cure reactions at high conversions. The inhibiting effect of glass fibers in polyester-based formulation was found less significant, and the delay in the exotherm temperature peak was mainly attributed to the thermal effects induced in the presence of glass fibers. The numerical predictions were compared with the experimental data obtained in a heated mold for a reinforced polyester part.
Citation Details
Title: Numerical analysis of promoted polyester and vinylester reinforced composites in RTM molds. (resin transfer molding)
Author: A. Yousefi
Publication:Polymer Engineering and Science (Refereed)
Date: May 1, 1997
Publisher: Society of Plastics Engineers, Inc.
Volume: v37 Issue: n5 Page: p757(15)
Distributed by Thomson Gale
From the author: This article presents a one-dimensional simulation of the post-filling period in the resin transfer molding (RTM) process. In this work, transient heat conduction and kinetic of cure equations were solved simultaneously using the Galerkin finite element method. The kinetic models employed in this study were developed with regard to the effects of additives frequently used in the formulation of composite parts (e.g., promoting agents and reinforcements). These specialized kinetic models enabled us to predict the influence of incorporated reinforcement on the process variables, e.g., gel time and demold time, and on the distributions of temperature and extent of cure in through-the-thickness direction of the polyester-based and vinylester-based composites. It was shown that in the case of vinylester, the incorporation of glass fibers gave rise to a severe inhibition of the cure reactions at high conversions. The inhibiting effect of glass fibers in polyester-based formulation was found less significant, and the delay in the exotherm temperature peak was mainly attributed to the thermal effects induced in the presence of glass fibers. The numerical predictions were compared with the experimental data obtained in a heated mold for a reinforced polyester part.
Citation Details
Title: Numerical analysis of promoted polyester and vinylester reinforced composites in RTM molds. (resin transfer molding)
Author: A. Yousefi
Publication:Polymer Engineering and Science (Refereed)
Date: May 1, 1997
Publisher: Society of Plastics Engineers, Inc.
Volume: v37 Issue: n5 Page: p757(15)
Distributed by Thomson Gale
