ДОСЛІДЖЕННЯ МІЦНОСТІ БАГАТОШАРОВИХ ТЕКСТИЛЬНИХ МАТЕРІАЛІВ З ВИКОРИСТАННЯМ МАТЕМАТИЧНОГО МОДЕЛЮВАННЯ

Abstract

The strength characteristics of multilayer textile materials are important indicators that affect their reliability and durability. When gluing layers of materials, one of the fundamental properties of matter is used - adhesion. Adhesion relative to textile materials is to obtain a non -detachable connection of the textile cloth and the canvas of the base by establishing between them with glue when heated with plastic deformation and further cooling of all components. During operation there is a displacement of layers relative to each other, as a result, the fabric is destroyed as a whole. Therefore, the process of destruction of adhesive connection of layers of textile materials is a consistent deformation of the adhesive and protruding fibers of the fabric and the canvas of the base before displacement, deformation (elongation) or destruction. The authors of the article investigated the influence of the mechanical properties of textile materials on the strength of the adhesive connection of layers of composite materials. A method of fabric strength research using mathematical modeling has been developed, which allows, without time-consuming experimental studies, to predict the loss of strength with known values ​​of the properties of fabric fibers, the number of layers, and the type of glue. On the basis of the theory of gluing of textile materials, theoretical and experimental studies of the strength of the adhesive connection of multilayer materials were carried out. When studying the strength of an adhesive joint, the main indicator is the magnitude of forces during delamination. The process of destruction of the adhesive connection of layers of textile materials in the event of a delamination load is considered as a sequential deformation of the glue with protruding fibers of the fabric and the base fabric until their displacement, deformation (elongation) or destruction.