Predicting the effect of preforming on RTM mold filling

Alexander S. Bakharev, Charles L. Tucker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In resin transfer molding (RTM) the step of making the preform - shaping layers of woven or random-fiber materials into the geometry of the final part - introduces local variations in the resistance of the preform to resin flow. These permeability variations affect the mold filling pattern when the part is impregnated with resin. In this study a mathematical model for this effect is proposed. The model predicts the fiber orientation and porosity at each point in the preform from the stretch ratios obtained from an ideal forming theory. It then computes the local permeability using a new self-consistent theory. The permeabilities serve as input to a mold filling simulating for preforms of variable permeability. An example demonstrates the importance of preforming for mold filling.

Original languageEnglish (US)
Title of host publicationProcessing
Editors Anon
PublisherSoc of Plastics Engineers
Pages797-801
Number of pages5
Volume1
StatePublished - 1996
EventProceedings of the 1996 54th Annual Technical Conference. Part 2 (of 3) - Indianapolis, IN, USA
Duration: May 5 1996May 10 1996

Other

OtherProceedings of the 1996 54th Annual Technical Conference. Part 2 (of 3)
CityIndianapolis, IN, USA
Period5/5/965/10/96

Fingerprint

Preforming
Resin transfer molding
Resins
Fiber reinforced materials
Porosity
Mathematical models
Geometry
Fibers

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Bakharev, A. S., & Tucker, C. L. (1996). Predicting the effect of preforming on RTM mold filling. In Anon (Ed.), Processing (Vol. 1, pp. 797-801). Soc of Plastics Engineers.

Predicting the effect of preforming on RTM mold filling. / Bakharev, Alexander S.; Tucker, Charles L.

Processing. ed. / Anon. Vol. 1 Soc of Plastics Engineers, 1996. p. 797-801.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bakharev, AS & Tucker, CL 1996, Predicting the effect of preforming on RTM mold filling. in Anon (ed.), Processing. vol. 1, Soc of Plastics Engineers, pp. 797-801, Proceedings of the 1996 54th Annual Technical Conference. Part 2 (of 3), Indianapolis, IN, USA, 5/5/96.
Bakharev AS, Tucker CL. Predicting the effect of preforming on RTM mold filling. In Anon, editor, Processing. Vol. 1. Soc of Plastics Engineers. 1996. p. 797-801
Bakharev, Alexander S. ; Tucker, Charles L. / Predicting the effect of preforming on RTM mold filling. Processing. editor / Anon. Vol. 1 Soc of Plastics Engineers, 1996. pp. 797-801
@inproceedings{3af18aa880a1462eac9fe012c878fa38,
title = "Predicting the effect of preforming on RTM mold filling",
abstract = "In resin transfer molding (RTM) the step of making the preform - shaping layers of woven or random-fiber materials into the geometry of the final part - introduces local variations in the resistance of the preform to resin flow. These permeability variations affect the mold filling pattern when the part is impregnated with resin. In this study a mathematical model for this effect is proposed. The model predicts the fiber orientation and porosity at each point in the preform from the stretch ratios obtained from an ideal forming theory. It then computes the local permeability using a new self-consistent theory. The permeabilities serve as input to a mold filling simulating for preforms of variable permeability. An example demonstrates the importance of preforming for mold filling.",
author = "Bakharev, {Alexander S.} and Tucker, {Charles L.}",
year = "1996",
language = "English (US)",
volume = "1",
pages = "797--801",
editor = "Anon",
booktitle = "Processing",
publisher = "Soc of Plastics Engineers",

}

TY - GEN

T1 - Predicting the effect of preforming on RTM mold filling

AU - Bakharev, Alexander S.

AU - Tucker, Charles L.

PY - 1996

Y1 - 1996

N2 - In resin transfer molding (RTM) the step of making the preform - shaping layers of woven or random-fiber materials into the geometry of the final part - introduces local variations in the resistance of the preform to resin flow. These permeability variations affect the mold filling pattern when the part is impregnated with resin. In this study a mathematical model for this effect is proposed. The model predicts the fiber orientation and porosity at each point in the preform from the stretch ratios obtained from an ideal forming theory. It then computes the local permeability using a new self-consistent theory. The permeabilities serve as input to a mold filling simulating for preforms of variable permeability. An example demonstrates the importance of preforming for mold filling.

AB - In resin transfer molding (RTM) the step of making the preform - shaping layers of woven or random-fiber materials into the geometry of the final part - introduces local variations in the resistance of the preform to resin flow. These permeability variations affect the mold filling pattern when the part is impregnated with resin. In this study a mathematical model for this effect is proposed. The model predicts the fiber orientation and porosity at each point in the preform from the stretch ratios obtained from an ideal forming theory. It then computes the local permeability using a new self-consistent theory. The permeabilities serve as input to a mold filling simulating for preforms of variable permeability. An example demonstrates the importance of preforming for mold filling.

UR - http://www.scopus.com/inward/record.url?scp=0030373718&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030373718&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0030373718

VL - 1

SP - 797

EP - 801

BT - Processing

A2 - Anon, null

PB - Soc of Plastics Engineers

ER -