Droplet Spreading on Unidirectional Fiber Beds
This study reports a method to analyze parametric effects on the spread flow kinetics of fluid droplets on unidirectional fiber beds. The investigation was undertaken in order to guide the design of droplet arrays for production of an out-of-autoclave (OoA) prepreg featuring discontinuous resin dist...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Journal of Composites Science |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-477X/5/1/13 |
| _version_ | 1797542183403782144 |
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| author | Patricio Martinez Bo Cheng Jin Steven Nutt |
| author_facet | Patricio Martinez Bo Cheng Jin Steven Nutt |
| author_sort | Patricio Martinez |
| collection | DOAJ |
| description | This study reports a method to analyze parametric effects on the spread flow kinetics of fluid droplets on unidirectional fiber beds. The investigation was undertaken in order to guide the design of droplet arrays for production of an out-of-autoclave (OoA) prepreg featuring discontinuous resin distribution, referred to here as semi-preg. Volume-controlled droplets of a resin facsimile fluid were deposited on carbon fiber beds and the flow behavior was recorded. The time to full sorption (after deposition) and the maximum droplet spread distance were measured. Experiments revealed that fluid viscosity dominated time to full sorption—doubling the viscosity resulted in an 8- to 20-fold increase in sorption time, whereas doubling fabric areal weight increased the time only by a factor of three. Droplet spread distance was nearly invariant with fiber bed architecture and fluid viscosity. A series of droplet arrays were designed, demonstrating how the results can be leveraged to achieve different resin distributions to produce semi-preg optimized for OoA cure. |
| first_indexed | 2024-03-10T13:27:02Z |
| format | Article |
| id | doaj.art-609c13e7976e4099a149c5dbaa8700c1 |
| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-10T13:27:02Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Composites Science |
| spelling | doaj.art-609c13e7976e4099a149c5dbaa8700c12023-11-21T08:52:44ZengMDPI AGJournal of Composites Science2504-477X2021-01-01511310.3390/jcs5010013Droplet Spreading on Unidirectional Fiber BedsPatricio Martinez0Bo Cheng Jin1Steven Nutt2M.C. Gill Composites Center, Department of Chemical Engineering and Materials Science, University of Southern California, 3651 Watt Way, Los Angeles, CA 90089, USAM.C. Gill Composites Center, Department of Chemical Engineering and Materials Science, University of Southern California, 3651 Watt Way, Los Angeles, CA 90089, USAM.C. Gill Composites Center, Department of Chemical Engineering and Materials Science, University of Southern California, 3651 Watt Way, Los Angeles, CA 90089, USAThis study reports a method to analyze parametric effects on the spread flow kinetics of fluid droplets on unidirectional fiber beds. The investigation was undertaken in order to guide the design of droplet arrays for production of an out-of-autoclave (OoA) prepreg featuring discontinuous resin distribution, referred to here as semi-preg. Volume-controlled droplets of a resin facsimile fluid were deposited on carbon fiber beds and the flow behavior was recorded. The time to full sorption (after deposition) and the maximum droplet spread distance were measured. Experiments revealed that fluid viscosity dominated time to full sorption—doubling the viscosity resulted in an 8- to 20-fold increase in sorption time, whereas doubling fabric areal weight increased the time only by a factor of three. Droplet spread distance was nearly invariant with fiber bed architecture and fluid viscosity. A series of droplet arrays were designed, demonstrating how the results can be leveraged to achieve different resin distributions to produce semi-preg optimized for OoA cure.https://www.mdpi.com/2504-477X/5/1/13carbon fibersprepreg processingfluid flowviscositywettability |
| spellingShingle | Patricio Martinez Bo Cheng Jin Steven Nutt Droplet Spreading on Unidirectional Fiber Beds Journal of Composites Science carbon fibers prepreg processing fluid flow viscosity wettability |
| title | Droplet Spreading on Unidirectional Fiber Beds |
| title_full | Droplet Spreading on Unidirectional Fiber Beds |
| title_fullStr | Droplet Spreading on Unidirectional Fiber Beds |
| title_full_unstemmed | Droplet Spreading on Unidirectional Fiber Beds |
| title_short | Droplet Spreading on Unidirectional Fiber Beds |
| title_sort | droplet spreading on unidirectional fiber beds |
| topic | carbon fibers prepreg processing fluid flow viscosity wettability |
| url | https://www.mdpi.com/2504-477X/5/1/13 |
| work_keys_str_mv | AT patriciomartinez dropletspreadingonunidirectionalfiberbeds AT bochengjin dropletspreadingonunidirectionalfiberbeds AT stevennutt dropletspreadingonunidirectionalfiberbeds |