Modeling meso-scale-void formation during through-thickness flow in liquid composite molding
Void formation during in-plane flow has been widely researched, while the void prediction method for throughthickness flow has not been reported, which restricts the effective quality control for through-thickness permeating type liquid composite molding (LCM). In this paper, the structural morpholo...
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| Format: | Article |
| Language: | English |
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Budapest University of Technology and Economics
2020-01-01
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| Series: | eXPRESS Polymer Letters |
| Subjects: | |
| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0010087&mi=cd |
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| author | B. Yang F. Y. Bi S. L. Wang C. Ma S. B. Wang S. Li |
| author_facet | B. Yang F. Y. Bi S. L. Wang C. Ma S. B. Wang S. Li |
| author_sort | B. Yang |
| collection | DOAJ |
| description | Void formation during in-plane flow has been widely researched, while the void prediction method for throughthickness flow has not been reported, which restricts the effective quality control for through-thickness permeating type liquid composite molding (LCM). In this paper, the structural morphology and connectivity of mesopores in multi-layer woven fabrics have been studied, the difference between intra-yarn and inter-yarn flow paths during through-thickness permeating has been analyzed, and the air entrapment processes in different types of mesopores have been revealed. Based on the modeling of micro and meso through-thickness flow, a mathematical model to predict the formation and size of mesoscale-void has been established, the variation of intra-yarn flow path under different compaction conditions has been analyzed to guarantee the precision of the model. Experimental method has been designed to measure the size of meso-scale-void formed during through-thickness LCM, comparisons between prediction and experimental results have demonstrated the correctness of the above model. |
| format | Article |
| id | doaj-art-bf57b3c5bdfa495bb04bbb352bca9392 |
| institution | Kabale University |
| issn | 1788-618X |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-bf57b3c5bdfa495bb04bbb352bca93922025-08-20T03:57:39ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2020-01-01141778910.3144/expresspolymlett.2020.7Modeling meso-scale-void formation during through-thickness flow in liquid composite moldingB. YangF. Y. BiS. L. WangC. MaS. B. WangS. LiVoid formation during in-plane flow has been widely researched, while the void prediction method for throughthickness flow has not been reported, which restricts the effective quality control for through-thickness permeating type liquid composite molding (LCM). In this paper, the structural morphology and connectivity of mesopores in multi-layer woven fabrics have been studied, the difference between intra-yarn and inter-yarn flow paths during through-thickness permeating has been analyzed, and the air entrapment processes in different types of mesopores have been revealed. Based on the modeling of micro and meso through-thickness flow, a mathematical model to predict the formation and size of mesoscale-void has been established, the variation of intra-yarn flow path under different compaction conditions has been analyzed to guarantee the precision of the model. Experimental method has been designed to measure the size of meso-scale-void formed during through-thickness LCM, comparisons between prediction and experimental results have demonstrated the correctness of the above model.http://www.expresspolymlett.com/letolt.php?file=EPL-0010087&mi=cdpolymer compositesliquid composite mouldingthrough-thickness flowvoid formationanalytical modelling |
| spellingShingle | B. Yang F. Y. Bi S. L. Wang C. Ma S. B. Wang S. Li Modeling meso-scale-void formation during through-thickness flow in liquid composite molding eXPRESS Polymer Letters polymer composites liquid composite moulding through-thickness flow void formation analytical modelling |
| title | Modeling meso-scale-void formation during through-thickness flow in liquid composite molding |
| title_full | Modeling meso-scale-void formation during through-thickness flow in liquid composite molding |
| title_fullStr | Modeling meso-scale-void formation during through-thickness flow in liquid composite molding |
| title_full_unstemmed | Modeling meso-scale-void formation during through-thickness flow in liquid composite molding |
| title_short | Modeling meso-scale-void formation during through-thickness flow in liquid composite molding |
| title_sort | modeling meso scale void formation during through thickness flow in liquid composite molding |
| topic | polymer composites liquid composite moulding through-thickness flow void formation analytical modelling |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0010087&mi=cd |
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