The Influence of Fiber Stacking Sequence on the Tensile and Flexural Properties of Natural Fiber/Glass Fiber Hybrid Composites
3rd International Conference on Engineering, Natural Sciences, and Technological Developments (ICENSTED 2026), Erzurum, Türkiye, 3 - 06 Temmuz 2026, ss.103, (Özet Bildiri)
- Yayın Türü: Bildiri / Özet Bildiri
- Basıldığı Şehir: Erzurum
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.103
- İstanbul Gelişim Üniversitesi Adresli: Evet
Özet
Natural fiber-reinforced composites have attracted increasing attention in both research and industrial applications owing to their renewable and sustainable characteristics. In this study, hybrid composites were fabricated using jute fiber, false banana fiber, and glass fiber as reinforcement materials, while unsaturated polyester resin (UPR) was used as the matrix. Methyl ethyl ketone peroxide (MEKP) was employed as the curing initiator. The composites were manufactured using the vacuum-assisted resin transfer molding (VARTM) technique. Each composite consisted of four reinforcement layers, each with an areal weight of 200 g/m², resulting in a total reinforcement areal weight of 800 g/m². Four different fiber stacking sequences were investigated: GGJJ, GJJG, GGBB, and GBBG, where G, J, and B represent glass, jute, and false banana fiber layers, respectively. In the GGJJ and GGBB configurations, two glass fiber layers were placed together, followed by two natural fiber layers. In contrast, in the GJJG and GBBG configurations, the glass fiber layers were positioned on the outer surfaces, while the natural fiber layers were placed in the core region. Tensile and flexural tests were carried out in accordance with ASTM D3039 and ASTM D790 standards, respectively. The results showed that the overall tensile and flexural performance followed the order GJJG > GGJJ > GBBG > GGBB. Among all fiber stacking sequences, GJJG exhibited the highest mechanical performance. This improvement can be attributed to its symmetric stacking sequence and the placement of glass fiber layers on the outer surfaces, where they can more effectively resist tensile and bending stresses. Conversely, GGBB showed the lowest performance, mainly due to the lower mechanical contribution of false banana fiber compared with jute fiber and its less favorable stacking arrangement. The findings demonstrate that both natural fiber type and fiber stacking sequence significantly influence the mechanical behavior of natural fiber/glass fiber hybrid composites.