Abstract:

Different design and method for testing of fiber axial compressing performance were proposed, the changes of contact conditions for fiber sample and the test-head and the corresponding changes in the compression curves during the test were analyzed, termination conditions of the testing process for fiber axial compressing performance testing was discussed, the characterization of performance for the fiber sample after bending deformation and its plasticity were explored, and the methods to determine fiber prickle properties applying fiber axial compressing performance were elaborated according to the prickle mechanism and its feeling attributes.The results showed that the contact condition of fiber sample and the test-head might change from “point contact” to “line contact” along with the bending deformation of the fiber sample during the axial compression test, and the axial compressing performance test should be to end along with the end of the "point contact"stage; when the prickle properties of fibers are judged according to their axial compressing performances, the contact condition between fiber-end and skin should be “point contact”, and the fiber-end should have a length of more than 0.2mm, and can withstand axial load not less than 0.75mN.