Investigation Of Tensile Behavior And Failure Mechanism Of Woven Fabric Based On Acoustic Emission

To characteristic tensile behavior of woven fabric and identify tensile failure mechanism is still a challenging work. In this paper, a new acoustic emission-based method is applied for the characterization of textile fracture mechanism. A set of acoustic emission signal acquisition devices was used to collect the acoustic emission signals, which is equipped on the electronic fabric strength tester during stretching. The proposed Hilbert-Huang Transform processing method was developed to identify the acoustic characteristics of collected unsteady acoustic emission signals of the woven fabric, which can be used to describe both time and frequency information. The experimental results demonstrate that acoustic emission signal is affected by orthogonal friction between warp and weft yarns rather than the fabric structure.