Tensile and bending properties of biaxial weft-knitted and cross-ply thermoplastic composites

Demircan O., Ashibe S., Kosui T., Nakai A.

JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS, cilt.28, sa.8, ss.1233-1249, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 28 Sayı: 8
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1177/0892705714530751
  • Dergi Adı: JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1233-1249
  • Anahtar Kelimeler: Biaxial weft-knitted thermoplastic composites, twisting, unidirectional composites, tensile, bending and impact properties, scanning electron microscopy, REINFORCED COMPOSITES, MECHANICAL-PROPERTIES, DEFORMATION, BEHAVIOR, STITCH
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

In this study, within the scope of experiments, two kinds of biaxial weft-knitted (BWK) fabrics with aramid (AR) and polyamide 66 (PA66) stitch fibers were used as reinforcement systems to fabricate thermoplastic composites with PA66 resin yarn. Then final composite became BWK with AR stitch yarn and cross-ply. The mechanical properties of composites were investigated by conducting tensile and three-point bending tests on specimens. In all specimens, PA66 was commingled with AR yarn. AR was used as reinforcement. In preliminary studies, AR unidirectional composites with AR/PA66 commingled fibers and with various twisting angles were produced and appropriate twisting angle was found by conducting tensile and three-point bending impact tests on specimens. Because of the higher volume fraction of the cross-ply composites, tensile and three-point bending properties of the cross-ply composite structures had higher than the BWK composites with the AR stitch yarn.