Analysis Of Wearing Pressure Of Knitted Garments Based On Finite Element Simulation

As the most common physical attribute,pressure exists between clothing and the human body.Pressure comfort,tactile comfort,and thermal and moisture comfort are important indicators that affect clothing comfort.Knitted clothing is often used for close-fitting because of its softness and good elasticity.The pressure comfort of knitted clothing has a significant impact on wearing comfort.The mechanical properties of knitted fabrics are an important index for evaluating the pressure comfort of clothing.Based on the finite element method and the mechanical properties of knitted fabrics,this paper proposes a numerical simulation method for predicting the mechanical properties of knitted fabrics and the wearing pressure of knitted garments.The aim is to analyze and study the pressure comfort of knitted garments through computer modeling.This subject toke the weft knitted weave fabric intercepted by the full-shaped sweater as a research object,and the yarn was 15.6 tex combed cotton yarn.Starting from the loop structure,the knitted fabric loop image was analyzed,the geometric structure parameters were obtained,the loop center line curve was constructed,and the needle knitted fabric loop model and plane knitted fabric model were established using Rhinoceros 3D modeling software As well as the tubular knitted fabric model,the theoretical calculation problem was transformed into a software application problem.According to the experimental standard of stretch elastic recovery rate of knitted fabric and the working method of universal strength machine,knitted fabric unit cell loop stretching finite element model,flat knitted fabric stretching finite element model,and tubular knitted fabric stretching finite element model were established by ABAQUS finite element software.The warp and weft stretching process of knitted fabric unit cell loop and flat knitted fabric and the weft stretching process of tubular knitted fabric were simulated.The morphology and stress changes during the stretching process of flat knitted fabrics were analyzed in both micro and macro perspectives,stretching process of tubular knitted fabrics was analyzed;through the knitted fabric tensile strength test experiment,the difference between the simulated value and the experimental value is within 8%.Finally,the human body model and sleeveless sweater were constructed by reverse engineering method.The knitted fabric stretch finite element model was combined with the knitted garment model,and the knitted sweater characteristics were determined by giving the garment model the mechanical properties of the knitted loops.The ABAQUS finite element software was used to simulate the wearing pressure of knitted garments when the human body was standing still,and experiments were conducted to verify the same results.