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Effect of horizontal shift between fabric layers on the meso-scale-void formation in liquid composite molding.

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Title: Effect of horizontal shift between fabric layers on the meso-scale-void formation in liquid composite molding.
Authors: Yang, B.1, Wang, S. B.1, Ma, C.1, Wang, S. L.1, Zhao, C. Y.2, Bi, F. Y.3
Source: Express Polymer Letters. 2019, Vol. 13 Issue 6, p501-511. 11p. 5 Color Photographs, 2 Charts, 2 Graphs.
Subjects: Polymer analysis, Polymer aging, Polymeric sorbents, Simulation games, Molding (Founding)
Abstract: Accurate prediction of void content is the foundation of process optimization for Liquid Composite Molding (LCM). During mold filling, void formation is a three-dimensional flow process, while at present the void formation is treated as a result of in-plane air entrapment, the resin and air flows on the thickness direction are totally neglected. In this paper, resin flows in the adjacent layers are considered to analyze the three-dimensional air entrapment and the meso-scalevoid formation. Firstly, the horizontal shift between fabric layers is analyzed, the mesopore coverage modes under different shift states are summarized. Then based on the mathematical models of micro and meso flows, the three-dimensional void entrapment processes under different cladding flow modes are studied in detail, a mathematical model for the prediction of meso-scale-void formation is established. Finally, a series of mold filling and void measurement experiments are carried out to verify the above model. [ABSTRACT FROM AUTHOR]
Copyright of Express Polymer Letters is the property of Budapest University of Technology & Economics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Effect of horizontal shift between fabric layers on the meso-scale-void formation in liquid composite molding.
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  Data: <searchLink fieldCode="JN" term="%22Express+Polymer+Letters%22">Express Polymer Letters</searchLink>. 2019, Vol. 13 Issue 6, p501-511. 11p. 5 Color Photographs, 2 Charts, 2 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Polymer+analysis%22">Polymer analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Polymer+aging%22">Polymer aging</searchLink><br /><searchLink fieldCode="DE" term="%22Polymeric+sorbents%22">Polymeric sorbents</searchLink><br /><searchLink fieldCode="DE" term="%22Simulation+games%22">Simulation games</searchLink><br /><searchLink fieldCode="DE" term="%22Molding+%28Founding%29%22">Molding (Founding)</searchLink>
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  Data: Accurate prediction of void content is the foundation of process optimization for Liquid Composite Molding (LCM). During mold filling, void formation is a three-dimensional flow process, while at present the void formation is treated as a result of in-plane air entrapment, the resin and air flows on the thickness direction are totally neglected. In this paper, resin flows in the adjacent layers are considered to analyze the three-dimensional air entrapment and the meso-scalevoid formation. Firstly, the horizontal shift between fabric layers is analyzed, the mesopore coverage modes under different shift states are summarized. Then based on the mathematical models of micro and meso flows, the three-dimensional void entrapment processes under different cladding flow modes are studied in detail, a mathematical model for the prediction of meso-scale-void formation is established. Finally, a series of mold filling and void measurement experiments are carried out to verify the above model. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Express Polymer Letters is the property of Budapest University of Technology & Economics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3144/expresspolymlett.2019.42
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        Text: English
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