DEVELOPMENT OF 3-D HEMISPHERICAL BIAXIAL WEFT-KNITTED THERMOSET COMPOSITES

Year 2019, Volume: 29 Issue: 4, 305 - 310, 31.12.2019

Özgür Demircan , Tatsuya Kosuı Shinsuke Ashıbe Asami Nakaı

https://doi.org/10.32710/tekstilvekonfeksiyon.619397

Abstract

The present work
concentrates on the development of 3-D hemispherical biaxial weft-knitted (BWK)
thermoset composites. The objective is to improve the quality of the 3-D
composites with BWK preform. Two kinds of the 3-D hemispherical BWK composites
with the flat surfaced and 3-D dome shaped biaxial weft-knitted preforms were
produced by hand lay-up method. The quantitative analysis of wrinkles was done
by measuring the locking angles between the fiber bundles in the composites. Small
numbers of wrinkle heights (1 height/1 cm) were observed on the flange surface
of the 3-D hemispherical BWK composite with the dome shaped preform compared to
the 3-D hemispherical BWK composite with the flat surfaced preform (10
heights/1 cm).

Keywords

biaxial weft-knitting, 3-D thermoset composites, locking angle, wrinkle of surface

References

• Fangueiro R., Nunes P., Soutinho F., Araujo MD., 2009, “Development of fibrous preforms for FRP pipe connections”. Compos. Sci. Tech. Vol: 69, pp: 1412-1416.
• Dufour C., Wang P., Boussu F., Soulat D., 2014, “Experimental Investigation About Stamping Behaviour of 3D Warp Interlock Composite Preforms”, Appl Compos Mater, Vol: 21, pp: 725–738.
• Wang P., Legrand X., Boisse P., Hamila N., Soulat D., 2015, “Experimental and numerical analyses of manufacturing process of a composite square box part: Comparison between textile reinforcement forming and surface 3D weaving”, Composites Part B Vol: 78, pp: 26-34.
• Liu LS., Zhang T, Wang P, Legrand X, Soulat D, 2015, “Influence of the tufting yarns on formability of tufted 3-Dimensional, composite reinforcement”, Composites: Part A Vol: 78, pp: 403–411.
• Cherouat A., Borouchaki H., Laurence G.M., 2010, “Mechanical and geometrical approaches applied to composite fabric forming”. Int. Jr. Mat. Form. Vol: 3, pp: 1189-1204.
• Mossea L., Compstona P., Cantwell WJ., Cardew-Hall M., Kalyanasundaram S., 2006, “Stamp forming of polypropylene based fibre-metal laminates: The effect of process variables on formability”. Jr. Mat. Pro. Tech. Vol: 172, 163-168.
• Rozant O., Bourban PE., Manson JAE., 2000, “Drapeability of dry textile fabrics for stampable thermoplastic preforms”. Compos. Pt. A. Vol: 31, pp: 1167-1177.
• Fiorotto M., Sorgente M., Lucchetta G., 2010, “Preliminary studies on single point incremental forming for composite materials”. Jr. Mat. Sci. Vol: 3, pp: 951-954.
• Soulat D., Allaoui S., Chatel S., 2009, “Experimental device for the preforming step of the RTM process”. Jr. Mat. Sci. Vol: 2, pp: 181-184.
• Vanclooester K., Goidsenhoven GV., Lomov SV., Verpoest I., 2009, “Optimizing the deepdrawing of multilayered woven fabric composites”. 12th ESAFORM Conference on Material Forming, Twente, the Netherlands.