Robotic-Assisted Measurement of Fabrics for the Characterization of the Shear Tension Coupling

Industrial use of composite materials requires an increasingly advanced knowledge technical textiles mechanical properties to control the manufacturing process and guarantee performances finished products. Among qualities that influence greatly shaping process, theshear deformability is key for forming complex parts with double curves geometries. On other hand, stiffening behavior as shearing rise responsible occurrence wrinkling defect. This textile reinforcement difficult determinebecause it non-linear coexists a tensile stiffness fibers several orders magnitude higher. Furthermore, shear tension are coupled due weaving textiles. Now, few experimental methods have been proposed measure fabric function its level because dedicated devices needed this investigation, capturing shear-tension then task. paper deals robotization effect characterization. A KUKA robot associated force/torque sensor utilized, taking advantage benefits in ability state yarn tensions during tests while keeping track desired trajectory enabled by hybrid position-force feature. ensures precise positioning sample accurate contact forces. An anisotropic hyperelastic constitutive model fabrics, based on continuum theory mechanics takes into account coupling was formulated analytically numerically simulated using Matlab software. test implemented validate model. The results from uni-axial under constant loading were obtained analyzed characterize sample. parameter identification performed presented detail.