An Inverse method for determining fabric permeability in vacuum assisted resin infusion for composite parts forming

An Inverse method for determining fabric permeability in vacuum assisted resin infusion for composite parts forming

VOSNIAKOS George-Christopher, DIMAKOPOULOS Panagiotis J., VASILEIOU Anastasia

Abstract. Vacuum Assisted Resin Infusion (VARI) method employs a mould on top of which a number of fabric pieces are laid up and impregnated by resin drawn through vacuum. Simulation of VARI depends on the determination of fabric permeability. In this work, permeability value is selected from a set of discrete values by a genetic algorithm. An impregnation simulation model is run on ComsolTM to compute the flow front propagation inside the fabric. The genetic algorithm compares the evolution (propagation) of the impregnation front, in a space and time dimension, with the corresponding result of one single actual impregnation experiment, obtained by machine vision. A simple part suffices for this experiment assuming homogenous fabric porosity. The computational cost of the method is low, making it superior to experimental determination of permeability on expensive custom-made devices.

Keywords
Composite Materials, Resin Infusion, Permeability, Genetic Algorithms

Published online 4/19/2023, 10 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: VOSNIAKOS George-Christopher, DIMAKOPOULOS Panagiotis J., VASILEIOU Anastasia, An Inverse method for determining fabric permeability in vacuum assisted resin infusion for composite parts forming, Materials Research Proceedings, Vol. 28, pp 407-416, 2023

DOI: https://doi.org/10.21741/9781644902479-45

The article was published as article 45 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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