Thermal Aspects in Edge Trimming of Bio-Filled GFRP: Influence of Fiber Orientation and Silica Sand Filler in Heat Generation
The present work aims to determine the influence of Glass Fiber-Reinforced Polymer (GFRP) laminating configuration in heat generation during the dry edge trimming process. Temperature measurement experiments were conducted on pure epoxy matrix, 15% unidirectional glass fiber reinforced epoxy, and 28...
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| Format: | Article |
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MDPI AG
2022-07-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/14/4792 |
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| author | Makram Elfarhani Fethi Guesmi Ali Mkaddem Sami Ghazali Saeed Rubaiee Abdessalem Jarraya |
| author_facet | Makram Elfarhani Fethi Guesmi Ali Mkaddem Sami Ghazali Saeed Rubaiee Abdessalem Jarraya |
| author_sort | Makram Elfarhani |
| collection | DOAJ |
| description | The present work aims to determine the influence of Glass Fiber-Reinforced Polymer (GFRP) laminating configuration in heat generation during the dry edge trimming process. Temperature measurement experiments were conducted on pure epoxy matrix, 15% unidirectional glass fiber reinforced epoxy, and 28% silica sand-filled GFRP specimens through eight type-K thermocouples evenly distributed along the trim plans and connected to a data acquisition system. Infrared thermographic measurements were also conducted to investigate the tool temperature evolution while processing. It was found that perpendicular fiber edge milling induces a sharp increase with peak temperature measurements reaching 119 °C, while machining parallel to fiber leads to a maximum temperature history of 41 °C, which is very close to that obtained from the pure epoxy test. It was also found that the addition of silica sand grains in the GFRP matrix reduces both tool and specimen temperature magnitudes up to 67% for 90° plies and 14% for 0° plies compared to silica sand-free composite initial values. The heat partition was calculated from the measured (electric) and estimated energies for the tool, the workpiece, and chips, respectively. It appears from predictions that the addition of silica sand grains increases the heat conductivity of the GFRP materials (with rates of 20% for 0° fiber orientation and 10% for 90° fiber direction), while it reduces that conducted to the milling tool. Scanning Electron Microscopy (SEM) inspections helped detect the dominating machining defects relative to each GFRP configuration and explained the heat generation and dissipation effects in light of peak temperature measurements. |
| first_indexed | 2024-03-09T13:28:37Z |
| format | Article |
| id | doaj.art-d19876bb445e40849c3378fd8cb4e5bb |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T13:28:37Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-d19876bb445e40849c3378fd8cb4e5bb2023-11-30T21:20:45ZengMDPI AGMaterials1996-19442022-07-011514479210.3390/ma15144792Thermal Aspects in Edge Trimming of Bio-Filled GFRP: Influence of Fiber Orientation and Silica Sand Filler in Heat GenerationMakram Elfarhani0Fethi Guesmi1Ali Mkaddem2Sami Ghazali3Saeed Rubaiee4Abdessalem Jarraya5LA2MP, National School of Engineers of Sfax, University of Sfax, P.O. Box 1173, Sfax 3038, TunisiaLA2MP, National School of Engineers of Sfax, University of Sfax, P.O. Box 1173, Sfax 3038, TunisiaDepartment of Mechanical and Materials Engineering, FOE, University of Jeddah, P.O. Box 80327, Jeddah 21589, Saudi ArabiaDepartment of Mechanical and Materials Engineering, FOE, University of Jeddah, P.O. Box 80327, Jeddah 21589, Saudi ArabiaIndustrial Department, FOE, University of Jeddah, P.O. Box 80327, Jeddah 21589, Saudi ArabiaLA2MP, National School of Engineers of Sfax, University of Sfax, P.O. Box 1173, Sfax 3038, TunisiaThe present work aims to determine the influence of Glass Fiber-Reinforced Polymer (GFRP) laminating configuration in heat generation during the dry edge trimming process. Temperature measurement experiments were conducted on pure epoxy matrix, 15% unidirectional glass fiber reinforced epoxy, and 28% silica sand-filled GFRP specimens through eight type-K thermocouples evenly distributed along the trim plans and connected to a data acquisition system. Infrared thermographic measurements were also conducted to investigate the tool temperature evolution while processing. It was found that perpendicular fiber edge milling induces a sharp increase with peak temperature measurements reaching 119 °C, while machining parallel to fiber leads to a maximum temperature history of 41 °C, which is very close to that obtained from the pure epoxy test. It was also found that the addition of silica sand grains in the GFRP matrix reduces both tool and specimen temperature magnitudes up to 67% for 90° plies and 14% for 0° plies compared to silica sand-free composite initial values. The heat partition was calculated from the measured (electric) and estimated energies for the tool, the workpiece, and chips, respectively. It appears from predictions that the addition of silica sand grains increases the heat conductivity of the GFRP materials (with rates of 20% for 0° fiber orientation and 10% for 90° fiber direction), while it reduces that conducted to the milling tool. Scanning Electron Microscopy (SEM) inspections helped detect the dominating machining defects relative to each GFRP configuration and explained the heat generation and dissipation effects in light of peak temperature measurements.https://www.mdpi.com/1996-1944/15/14/4792glass fiberepoxysilica sandtemperatureedge-trimmingthermographs |
| spellingShingle | Makram Elfarhani Fethi Guesmi Ali Mkaddem Sami Ghazali Saeed Rubaiee Abdessalem Jarraya Thermal Aspects in Edge Trimming of Bio-Filled GFRP: Influence of Fiber Orientation and Silica Sand Filler in Heat Generation Materials glass fiber epoxy silica sand temperature edge-trimming thermographs |
| title | Thermal Aspects in Edge Trimming of Bio-Filled GFRP: Influence of Fiber Orientation and Silica Sand Filler in Heat Generation |
| title_full | Thermal Aspects in Edge Trimming of Bio-Filled GFRP: Influence of Fiber Orientation and Silica Sand Filler in Heat Generation |
| title_fullStr | Thermal Aspects in Edge Trimming of Bio-Filled GFRP: Influence of Fiber Orientation and Silica Sand Filler in Heat Generation |
| title_full_unstemmed | Thermal Aspects in Edge Trimming of Bio-Filled GFRP: Influence of Fiber Orientation and Silica Sand Filler in Heat Generation |
| title_short | Thermal Aspects in Edge Trimming of Bio-Filled GFRP: Influence of Fiber Orientation and Silica Sand Filler in Heat Generation |
| title_sort | thermal aspects in edge trimming of bio filled gfrp influence of fiber orientation and silica sand filler in heat generation |
| topic | glass fiber epoxy silica sand temperature edge-trimming thermographs |
| url | https://www.mdpi.com/1996-1944/15/14/4792 |
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