Abstract: According to the structural features of co-woven-knitted fabric（CWK）, high tenacity and high modulus basalt fiber filaments with different linear density were used as warp, weft and stitch yarn to produce the CWK fabric, which was used as reinforcement in making basalt filament/ethylene composite by VARTM process. For exploring the application fields of the CWK reinforced composites, the cross, longitudinal, and diagonal bending was tested. The mechanical properties of the composites were investigated by analyzing the load-deflection curves and breaking forms. The strength comparison was made between the warp and weft of the composites. The results revealed that the bending strength in the axial direction was relatively higher, and the bending strength in weft and warp directions was better that in diagonal direction. Plastic fracture breaking was observed and bending energy absorbing is similar.

Key words: co-woven-knitted fabric, basalt fiber, composite, bending property, breaking form