Abstract
The complex and hollow nature of 3D spacer fabrics require novel approaches to achieve efficient transfer of resin to the structure with a uniform fashion. In this work, a custom-built spray system is designed and built to achive an effective wetting of 3D I-beam fabrics for a high-quality composite manufacturing of a spacer structure. The spray-wetted 3D I-beam composites were manufactured with a custom-designed 3D molding for 600 TEX glass fiber and epoxy resin. Since achieving high-quality composites is essential to accomplish the required mechanical characteristics, the 3D I-beam composites fabricated with vacuum infused process were also compared with spray-wetted and molded specimens. The quality of both specimens was evaluated by optical microscopy images for void content and the results clearly demonstrated a higher void content of 5, 65 times more for spray wetted specimens compared to produced ones with vacuum infusion. The results of the three-point bending tests were in line with the calculated void content. 3-point bending results of vacuum infused 3D composites were measured as 13, 3 MPa where the spray-wetted 3D composites presented as 11, 6 MPa.
Original language | English |
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Title of host publication | Materials |
Editors | Anastasios P. Vassilopoulos, Veronique Michaud |
Publisher | Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL) |
Pages | 532-538 |
Number of pages | 7 |
ISBN (Electronic) | 9782970161400 |
Publication status | Published - 2022 |
Event | 20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022 - Lausanne, Switzerland Duration: 26 Jun 2022 → 30 Jun 2022 |
Publication series
Name | ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability |
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Volume | 1 |
Conference
Conference | 20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022 |
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Country/Territory | Switzerland |
City | Lausanne |
Period | 26/06/22 → 30/06/22 |
Bibliographical note
Publisher Copyright:© 2022 Vural et al.
Funding
This study was funded by the Scientific and Technological Research Council of Turkey (TUBITAK: project number 218M703 (218M704)) 1003 Primary Subjects R&D Funding Program. The authors would also like to thank to the conference funding for M.Ali Vural provided by TUBITAK 2244-A Support Program for Participation in Abroad Scientific Events.
Funders | Funder number |
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Türkiye Bilimsel ve Teknolojik Araştırma Kurumu | 218M703, 218M704 |
Keywords
- 3D weaving
- composite quality
- flexural strength
- structural composite
- woven preform