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Vacuum infusion in porous preform with different mould configurations: Flow simulation and experimental validation

Adhikari, D and Gururaja, S and Hemchandra, S (2020) Vacuum infusion in porous preform with different mould configurations: Flow simulation and experimental validation. In: Journal of Reinforced Plastics and Composites . (In Press)

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Official URL: https://dx.doi.org/10.1177/0731684420960209


The present work focuses on the formulation of transient incompressible resin flow during vacuum-assisted resin transfer moulding using level set front tracking method in a multi-block structured grid within a finite difference framework. Initially, the relation between compaction pressure and fibre volume fraction ((Formula presented.)) has been established by conducting compression tests using a universal tensile machine under dry and wet conditions. In-plane permeability has been characterised as a function of (Formula presented.) using three thicknesses of unidirectional carbon fabric (4, 8 and 12 plies). A pressure data acquisition system and a non-contact out-of-plane displacement measurement setup have been developed using a single lens camera to conduct the vacuum infusion experiments. The numerical model prediction of the instantaneous change in pressure, displacement, and fill time has been validated with the experiments for the three different thickness of unidirectional preform in a flat plate and a plate with a centrally located hole during vacuum infusion. The coupled transient flow model with the level set interface propagation in a multi-block framework shows a good agreement with vacuum infusion experiments. The proposed transient vacuum infusion flow model, compaction relation with (Formula presented.), permeability and experimental setup show the potential to capture realistic flow physics during vacuum infusion on different mould configurations. © The Author(s) 2020.

Item Type: Journal Article
Publication: Journal of Reinforced Plastics and Composites
Publisher: SAGE Publications Ltd
Additional Information: Copyright for this article belongs to SAGE Publications Ltd.
Keywords: Compaction; Compression testing; Data acquisition; Molds; Numerical methods; Preforming; Resins, Dry and wet conditions; Experimental validations; Fibre volume fraction; Front Tracking method; In-plane permeability; Interface propagation; Out-of-plane displacement; Transient flow models, Resin transfer molding
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 14 Mar 2021 06:45
Last Modified: 14 Mar 2021 06:45
URI: http://eprints.iisc.ac.in/id/eprint/66780

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