Conference Papers
Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506
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Item Comparative study of natural fibre 3D braided yarn woven fabric and simply twisted yarn woven fabric reinforced epoxy composites(American Institute of Physics Inc. subs@aip.org, 2020) Kanakannavar, S.; Jeyaraj, P.In this study natural fibre 3D braided yarn plain woven fabric (NFBF) and natural fibre simply twisted yarn plain woven fabric (NFSF) are prepared and tensile tests are conducted on braided yarn, simply twisted yarn, NFBF and NFSF. Then the tensile results of braided yarn compared with simply twisted yarn and NFBF results with NFSF. The composites are manufactured by reinforcing prepared fabrics (NFBF and NFSF) with the epoxy resin. On these composites tensile and flexural properties characterisation is carried out in warp and weft directions of the fabrics. SEM analysis is used for fractured surface study. The test results showed that, simply twisted yarn and its fabrics (NFSF) are presented better strength than that of the braided yarn and its fabric (NFBF). The NFSF/epoxy composite in warp direction loading received higher tensile strength and flexural strength of about 67.12 MPa and 131 MPa. © 2020 Author(s).Item Compressive properties of 3D braided flax fiber textile fabric reinforced PLA composites(IOP Publishing Ltd, 2021) Kanakannavar, S.; Jeyaraj, J.In this study, fabric woven using 3D braided flax yarn is used to reinforce Poly Lactic Acid (PLA) composites. Solid braiding technique is used to convert the typical yarns into braided yarn and further these yarns are used to prepare woven fabric. Finally, composites are fabricated through layer stacking method using hot-press hydraulic compression moulding machine. Compression and shrinkage tests are performed on the braided composites. The braided flax fiber composite results are compared with the as received PLA polymer results. Results showed significant enhancement in the compression properties of PLA composites due to the braided fabric reinforcement. These properties are further increased with the increase in filler content respectively. Thermal shrinkage of the braided flax fiber composites is lower than the PLA polymer. This is due to the higher thermal sustainability property associated with the braided flax fiber. © Published under licence by IOP Publishing Ltd.