The Effect of Rib Fabric Pattern and Yarn Composition on the Mechanical Properties of Polyester Matrix Composites Reinforced by Weft-Knitted Fabric

In this study, polyester matrix composites reinforced by 1x1, 2x2, half- and full-cardigan rib pattern weft-knitted fabrics from glass and glass/aramid hybrid yarns were produced. Tensile, flexural and impact tests were applied to the composites. The 2x2 rib pattern composite showed the highest thickness and density. The hybridization of glass yarn with aramid yarn increased the thickness, while it decreased the density of composites. The 2x2 rib pattern composite showed the highest tensile modulus and tensile strength. Yarn hybridization increased tensile strength at statistically significant level. The composite with full-cardigan rib pattern displayed considerably higher flexural modulus and flexural strength than the composites with the other patterns. When glass and hybrid composites were considered separately, the rib fabric pattern exhibited significant effect on maximum load. The rib fabric pattern displayed also significant effect on absorbed energy for glass composites. The yarn hybridization dramatically increased maximum load and absorbed impact energy.

Keywords:

glass yarn, aramid yarn, weft knitted fabric composite materials, mechanical properties,

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1. Callister WD, Rethwisch DG. 2018. Materials science and engineering: an introduction (Vol. 9). New York: Wiley.
2. Campbell F C. 2003. Manufacturing processes for advanced composites. Oxford: Elsevier.
3. Strong AB. 2008. Fundamentals of composites manufacturing: materials, methods and applications. Michigan: Society of manufacturing engineers.
4. Hearle JWS, Du GW. 1990. Forming rigid fibre assemblies: the interaction of textile technology and composites engineering. Journal of the Textile Institute, 81(4), 360-383.
5. Cox BN, Flanagan G. 1997. Handbook of analytical methods for textile composites. Virginia : NASA.
6. Dow MB, Dexter HB. 1997. Development of stitched, braided and woven composite structures in the ACT program and at Langley Research Center. Virginia : NASA.
7. Wambua PA, Anandjiwala R. 2011. A review of preforms for the composites industry. Journal of Industrial Textiles, 40(4), 310-333.
8. Pandita SD, Falconet D, Verpoest I. 2002. Impact properties of weft knitted fabric reinforced composites. Composites Science and Technology, 62(7-8), 1113-1123.
9. Khondker OA, Leong KH, Herszberg I, Hamada H. 2005. Impact and compression-after-impact performance of weft-knitted glass textile composites. Composites Part A: Applied Science and Manufacturing, 36(5), 638-648.
10. Tercan M, Asi O, Yüksekkaya ME, Aktaş A. 2007. Comparison of tensile properties of weft-knit 1× 1 rib glass/epoxy composites with a different location of layers. Materials & Design, 28(7), 2172-2176.
11. Gommers B, Verpoest I, Van Houtte P. 1996. Modelling the elastic properties of knitted-fabric-reinforced composites. Composites Science and Technology, 56(6), 685-694.
12. Pamuk G, Çeken F. 2008. Manufacturing of weft-knitted fabric reinforced composite materials: a review. Materials and Manufacturing Processes, 23(7), 635-640.
13. Padaki NV, Alagirusamy R, Deopura BL, Fangueiro R. 2010. Influence of preform interlacement on the low velocity impact behavior of multilayer textile composites. Journal of Industrial Textiles, 40(2), 171-185.
14. Ciobanu L. 2011. Development of 3D knitted fabrics for advanced composite materials. In Advances in Composite Materials-Ecodesign and Analysis. IntechOpen, 161-192.
15. Karaoglu I., Alpyildiz T. 2021. Impact performances of monoaxial knitted fabric composites. Journal of Composite Materials, 0021998320988877.
16. Araujo MD, Fangueiro R, Hong H. 2003. Modelling and simulation of the mechanical behaviour of weft-knitted fabrics for technical applications: part I: general considerations and experimental analyses. AUTEX Research Journal, 3, 111-123.
17. Soyaslan DD. 2020. Design and manufacturing of fabric reinforced electromagnetic shielding composite materials. Tekstil ve Konfeksiyon, 30(2), 92-98.
18. Alpyildiz T, Icten BM, Karakuzu R, Kurbak A. 2009. The effect of tuck stitches on the mechanical performance of knitted fabric reinforced composites. Composite Structures, 89(3), 391-398.
19. Pamuk G, Ceken F. 2013. Comparison of the mechanical behavior spacer knit cotton and flax fabric reinforced composites. Industria Textila, 64(1), 3-7.
20. Abounaim M, Hoffmann G, Diestel O, Cherif C. 2010. Thermoplastic composite from innovative flat knitted 3D multi-layer spacer fabric using hybrid yarn and the study of 2D mechanical properties. Composites Science and Technology, 70(2), 363-370.
21. Asi O, Aktaş A, Tercan M, Yüksekkaya ME. 2010. Effect of knitting tightness on mechanical properties of weft-knit glass fiber reinforced epoxy composites. Journal of Reinforced Plastics and Composites, 29(1), 86-93.