Finite Element Simulation of a Yarn Pullout Test for Plain Woven Fabrics

Abstract

In this study, a three-dimensional (3D) model of a yarn pullout test for plain woven fabrics is introduced. The main focus of the study is on the realization of a 3D fabric geometrical model, the incorporation of anisotropic material properties and the validation of yarn and fabric finite element meso-models using experimental results. The material properties of yarn and fabric were assumed to be linear orthotropic. The required engineering constants were obtained from experimentally-measured tensile, compression and shear diagrams. The accuracy of the applied engineering constants was investigated by finite element (FE) modeling of yarn pure bending. The yarn pullout test was modeled with the Abaqus FE package. The fabric sample was modeled with solid elements for the weft and warp yarns in the interlacing points, which are directly involved in the yarn pullout, plus shell elements for the parts of the fabric that undergo only shear deformation. The effects of the geometrical model and material anisotropy were investigated and the predicted force—displacement profiles of the yarn pullout test were compared with experimental measurements.

Identification of the elastic constant values for numerical simulation of high velocity impact on dyneema® woven fabrics using orthogonal experiments

“…Based on the measurement of the real fabric made of the Dyneema ® yarn of 175tex with thread density of 7 threads/cm, the width and height of the warp and weft yarns were assumed identical to 1.20mm and 0.29mm for the dimension of the warp and weft yarns were measured very closely in reality as shown in Figure 4(a). Such assumptions appear to be reasonable for they were widely used in FE modelling of plain woven fabrics, with continuous filament yarns, subject to transverse impact, and the modelled results agreed well with the experimental results [29][30][31][32].…”

Effect of the frictional coefficient and pre-tension on stress distribution of fabric during the weaving process

“…Hyperelastic and hypoelastic material constitutive laws were used to model the fabric in the macroscopic scale in the literature. 15 At the mesoscopic scale in the literature, 16 the material properties of yarn were assumed to be linear orthotropic. Yarn consists of thousands of individual filaments at the microscopic scale.…”

An overview of yarn pull-out behavior of woven fabrics

“…Although this method is able to capture phenomena that are not possible in other approaches, a satisfactory solution is obtained at the expense of a great amount of time and good computer performance; therefore, fabric is often simulated at a small size level. A considerable amount of literature has been published on the modeling of plain woven fabric, including work by Roylance and Wang, 55 Shim et al., 56,57 Tan et al., 58 Shockey et al., 31 Gu, 59 Duan et al., 60,61 Zhu et al., 13 Valizadeh et al., 62 Dong and Sun, 19 etc. Only a few of them pay attention to the behavior of yarn pull-out.…”

“…As a result, it could hardly be regarded as successful. A more reliable FE model developed by Valizadeh et al 62 consists of solid and unit-cell shell elements, aiming to simulate the movement of pulled out yarn and fabric shear deformation, respectively. Although no sub-routines were used for defining the properties of the element, the model could well predict the in-plane shear deformation of a real fabric.…”