Improving the consumer properties of compression knitwear with a given pressure based on modelling of nonlinear deformations

The article was devoted to the current problem of ensuring rational parameters of compression textile products, which affect the qualitative parameters of their functioning. The purpose of this work was to substantiate the pattern-making methods of compression clothing, taking into account individual features of the human body structure, anisotropy of materials, deviations from linear laws of deformation, and large deformations that have values similar to geometric dimensions. Discrete-continuous model was developed, which represented a conditionally continuous compression textile material in the form of cells, the elements of which have certain characteristics determined based on macro experiments. The individual geometry of the human body was determined by 3D scanning methods. The use of a structural model allowed the creation of a pattern that ensured a given pressure on the human body. The proposed approach allowed the creation of patterns of compression clothing to ensure a given pressure on the human body. The created discrete model for simulating textiles used additional structural elements, which allowed for taking into account the material’s resistance to shear stress and the anisotropy of the textile material. The deviation from the linear law of deformation of the textile material was provided by the characteristics of the structural elements. Significant deformations of the product were taken into account with compiling the system of nonlinear equations. Experimental studies had proven the adequacy of the results obtained. The proposed model allowed for the first time to take into account all real effects during the deformation of textile materials, which ensured the adequacy of the results in the process of creating compression clothing. The obtained results allow the creation of compression textile products with specified pressure parameters along the length