Bending properties of co-woven-knitted basalt fiber fabric reinforced composites

The aim of this study was to give some reference for industrial applications of co-woven-knitted fabrics,thus this paper,based on the structural features of co-woven-knitted fabric(CWK),selected high tenacity and high modulus basalt continuous filaments with different linear densities as warp and filling as well as stitch yarn to produce CWKs which were used as reinforcement in making basalt filament/ethylene composite by VARTM process.For exploring application fields of the CWK reinforced composites,the cross,longitudinal,and diagonal bending properties of the composites were tested,along with analysis of the load-deflection curves and breaking forms in all directions.The results revealed that the bending properties in the cross and longitudinal directions of the composites were advantageous over those in the diagonal direction.Plastic fracture breaking was observed and bending energy absorbing was similar.