Numerical Simulation of 3D Dynamic Garment Pressure

Abstract

This paper presents a mechanical model for numerical simulations of 3D dynamic garment pressure during wear using a finite element method. Based on analyzing the contact characteristics between the human body and the garment, a mechanical model is developed based on the theory of dynamic contact mechanics. The garment is regarded as an elastic shell of geometric nonlinearity and the human body is assumed to be rigid. The contact between body and garment is modeled as a dynamic sliding interface. A series of examples is presented to illustrate the simulation results of the computational model using commercial finite element software: a female human model wearing a set of perfectly fitting sportswear. The garments have the same style but are made from different materials: a cotton denim fabric and a knitted nylon fabric. Compared with values of measured garment pressure reported in the literature, the predicted pressure is close to the magnitude of experimental measurements, indicating that the model is able to simulate garment pressure during wear with reasonable accuracy. The computational model can simulate and predict the dynamic mechanical behavior of garments during wear, such as garment deformation, pressure, and internal stresses, without actually producing the garment.

Human-Friendly Design of Virtual System “female Body-dress”

“…In the real world, the wearer-perceived apparel depends on the clothes construction and the material properties; thus, a series of indicators that are manifested in the "comfort-wear" system was under the influence of constructive solutions. More complexly, the actual garment pressure is closely related to the space allowance between the body and garment during body movement as it was proved by Zhang et al [7]. While the existing two methods for the simulated pressure display were concerned about objective indexes only, they were unintuitive and impractical for customers or designers observing how the human body would feel in the apparel.…”

Development of a low cost portable pressure measurement system using for garment design

“…The pressure distributions of S-type and L-type knitted garment are shown in Fig. 8, (A, B, C), (4,5,6), and (1 0 , 2 0 , 3 0 ) are eight groups points set, and each group is composed of points on under bust-line, waistline and abdomen-line along vertical direction, obviously, the pressures which are measured on mannequin using S-type and L-type knitted garments are increasing along vertical down direction in each group except the last group. The size of abdomen-line of knitted garments should be amplified appropriately to increasing the comfort according to the size of mannequin.…”

“…Sasaki et al [3] predicted the dynamic garment pressure based on the feelings when people wore clothes. Zhang et al [4] presented a mechanical model for numerical simulations of 3D dynamic garment pressure during wear by using a finite element method.…”

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