Manufacture and characterization of 3D warp interlock fabric made of flax roving

The present study carries on the characterization of dry reinforcement structure for composite material. Yarn properties were analyzed to select the optimal level of twist. The influence of 3D-warp interlock structure's bending type was also investigated. Structures, made with 1000Tex flax roving, were woven on a dobby loom. Physical characterization and mechanical testing (tensile test) were conducted on the four different binding structures (AL, AT, OL and OT) to provide relevant data and identify the influence of the binding warp yarns' path inside 3D warp interlock structure.