The Resource An analytical vacuum-assisted resin transfer molding (VARTM) flow model, Bruce K. Fink ... [et al.], (electronic resource)

An analytical vacuum-assisted resin transfer molding (VARTM) flow model, Bruce K. Fink ... [et al.], (electronic resource)

Label
An analytical vacuum-assisted resin transfer molding (VARTM) flow model
Title
An analytical vacuum-assisted resin transfer molding (VARTM) flow model
Statement of responsibility
Bruce K. Fink ... [et al.]
Contributor
Subject
Language
eng
Summary
A closed form solution for the flow of resin in the vacuum-assisted resin transfer molding (VARTM) process is used extensively for affordable manufacturing of large composite structures. During VARTM processing, a highly permeable distribution medium is incorporated into the preform as a surface layer. During infusion, the resin flows preferentially across the surface, simultaneously through the preform, to a complex flow front. The analytical solution presented here provides insight into the scaling laws governing fill times and resin inlet placement as a function of the properties of the preform, distribution media, and resin. The formulation assumes that the flow is fully developed and is divided into two areas: (1) a saturated region with no cross flow, and (2) a flow front region, which moves with a uniform velocity, where the resin is infiltrating into the preform from the distribution medium. The law of conservation of mass and Darcy's Law for flow through porous media are applied in each region. The resulting equations are nondimensionalized and are solved to yield the flow front shape and the development of the saturated region. It is found that the flow front is parabolic in shape, and the length of the saturated region is proportional to the square root of the time elapsed. The obtained results are compared to data from fill-scale simulation and show good agreement. The solution allows greater insight into the physics process, enables parametric and optimization studies, and can reduce the computational cost of full-scale, three-dimensional (3-D) simulations
Member of
Cataloging source
DTICE
Government publication
federal national government publication
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
http://library.link/vocab/relatedWorkOrContributorName
  • Fink, Bruce K
  • U.S. Army Research Laboratory
Series statement
ARL/TR
Series volume
2354
http://library.link/vocab/subjectName
  • Composite materials
  • Metallurgy and Metallography
  • Resin transfer molding
  • Velocity
  • Optimization
  • Computations
  • Parametric analysis
  • Distribution
  • Layers
  • Polymers
  • Composite structures
  • Regions
  • Saturation
  • Costs
  • Surfaces
  • Physics
  • Emplacement
  • Scaling factor
  • Media
  • Flow
  • Equations
  • Inlets
  • Porous materials
  • Analytic functions
  • Square roots
  • Cross flow
Label
An analytical vacuum-assisted resin transfer molding (VARTM) flow model, Bruce K. Fink ... [et al.], (electronic resource)
Link
http://purl.fdlp.gov/GPO/gpo146
Instantiates
Publication
Note
  • Title from title screen (viewed Oct. 20, 2010)
  • "October 2000."
Bibliography note
Includes bibliographical references (p. 31-32)
Color
black and white
Control code
227947073
Dimensions
unknown
Extent
1 online resource (viii, 54 p.)
Form of item
online
Other physical details
digital, PDF file.
Specific material designation
remote
Label
An analytical vacuum-assisted resin transfer molding (VARTM) flow model, Bruce K. Fink ... [et al.], (electronic resource)
Link
http://purl.fdlp.gov/GPO/gpo146
Publication
Note
  • Title from title screen (viewed Oct. 20, 2010)
  • "October 2000."
Bibliography note
Includes bibliographical references (p. 31-32)
Color
black and white
Control code
227947073
Dimensions
unknown
Extent
1 online resource (viii, 54 p.)
Form of item
online
Other physical details
digital, PDF file.
Specific material designation
remote

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