1 Ocak 2020 Dergi makalesi Açık Erişim

Hancioglu, Mert; Sozer, E. Murat; Advani, Suresh G.

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    <subfield code="a">Comparison of in-plane resin transfer molding and vacuum-assisted resin transfer molding 'effective' permeabilities based on mold filling experiments and simulations</subfield>
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    <subfield code="a">Resin transfer molding and vacuum-assisted resin transfer molding are two of the most commonly used liquid composite molding processes. For resin transfer molding, mold filling simulations can predict the resin flow patterns and location of voids and dry spots which has proven useful in designing the mold and injection locations for composite parts. To simulate vacuum-assisted resin transfer molding, even though coupled models are successful in predicting flow patterns and thickness distribution, the input requires fabric compaction characterization in addition to permeability characterization. Moreover, due to the coupled nature of flow and fabric compaction, the simulation is computationally expensive precluding the possibility to optimize the flow design for reliable production. In this work, we present an alternative approach to characterize and use an "effective" permeability in the resin transfer molding solver to simulate resin flow in vacuum-assisted resin transfer molding. This decoupled method is very efficient and provides reasonable results. The deviations in mold filling times between experiments and simulations for the resin transfer molding process with E-glass CSM and carbon 5HS were 4.7% and 1.0%, respectively, while for the vacuum-assisted resin transfer molding case using "effective permeability value" with E-glass CSM and carbon 5HS fabrics were 11.1% and 12.3%, respectively, which validates the approach presented.</subfield>
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    <subfield code="u">Koc Univ, Mech Engn Dept, Istanbul, Turkey</subfield>
    <subfield code="a">Sozer, E. Murat</subfield>
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    <subfield code="u">Univ Delaware, Ctr Composite Mat, Dept Mech Engn, Newark, DE 19716 USA</subfield>
    <subfield code="a">Advani, Suresh G.</subfield>
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    <subfield code="c">2020-01-01</subfield>
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    <subfield code="a">10.1177/0731684419868015</subfield>
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