Analysis of influence of cold plasma on stiffness properties of polymeric materials

Abstract

Abstract A model of the polyester fabric behavior subjected to plasma treatment with a reduced pressure is proposed to evaluate its deformability in its plane. The method for identifying stiffness properties is described, and the results of processing the full-scale experiments as well as the results of the numerical studies of the problem regarding stretching samples of the fabric are presented. For the numerical analysis of the deformation process of the fabric samples the finite element method was used. The proposed finite-element model of deformation of nonlinear elastic fabric materials allows us to study the patterns of behavior of the tissue samples under various loads, given that the material is not able to support the compressive loads. The developed technique for an experimental determination of the stiffness characteristics of fabrics according to the results of testing the samples, cut at different angles to the base, under various stretching forces, made it possible to analyze the influence of treatment of the fabric with a cold plasma on its mechanical characteristics.