Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (04): 47-54.doi: 10.13475/j.fzxb.20210405508

• Textile Engineering • Previous Articles     Next Articles

Mechanical property analysis of yarn pull-out from aramid plain woven fabrics based on micro-geometry

MA Ying1, LIU Yueyan1, ZHAO Yang1,2, CHEN Xiang1, LU Sheng1,2(), HU Hanjie3   

  1. 1. School of Advanced Manufacturing Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
    2. State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
    3. The Green Aerotechnics Research Institute of Chongqing Jiaotong University, Chongqing 401120, China
  • Received:2021-04-20 Revised:2021-07-20 Online:2022-04-15 Published:2022-04-20
  • Contact: LU Sheng E-mail:lusheng@cqupt.edu.cn

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Abstract:

In order to study the mechanical properties and parametric influence of yarn pull-out from aramid plain woven fabrics, an analytical model was proposed to provide the theoretical bases for subsequent numerical modeling. The micro-geometry of the plain woven fabric was generated through weaving process simulation using the digital element approach. On this basis, the yarn pull-out behavior of a single yarn was simulated by ABAQUS. One solid element is used through the thickness of the yarn and the yarn material properties were defined. The effect of transverse pre-loading and yarn-to-yarn friction on pull-out behavior and energy transfer mechanism were obtained. The simulation results show that the differences between the simulated peak pull-out force and the peak transverse force compared to the experimental ones are 5.96% and -8.51%, respectively. The external energy is mainly dissipated in the form of frictional energy. When the transverse pre-loading and yarn-to-yarn friction coefficient increases, the growth rate of the yarn peak pull-out force gradually decreases. The proposed model is capable of predicting the yarn pull-out performance with reasonable accuracy.

Key words: aramid plain woven fabric, micro-geometry, yarn pull-out, peak pull-out force, digital element approach

CLC Number: 

  • TB332

Fig.1

Schematic diagram of yarn pull-out device(a) and process (b)"

Fig.2

Discrete process of plain weave fabric"

Fig.3

Calculating schematic diagram of yarn cross-section profile. (a) Outer yarn profile; (b) Inner yarn profile"

Fig.4

Schematic diagram of calculating yarn surface mesh"

Fig.5

Comparison of fabric surface and yarn cross-section shape. (a) Actual fabric surface; (b) Numerical fabric model surface; (c) Comparison between actual and numerical yarn cross-section shape"

Tab.1

Parameters of yarn orthotropic linear elastic material"

E11/
GPa		 E22/
GPa		 E33/
GPa		 G12/
GPa		 G13/
GPa		 G23/
GPa		 ν12 ν13 ν23
84 4.2 4.2 4.2 4.2 4.2 0 0 0

Fig.6

Schematic diagram of mesh division. (a) Mesh unit division; (b) Meshed yarn cross-sectional shape with local seed distribution"

Fig.7

Energy-time curves"

Fig.8

Simulation and experimental pull-out force-displacement curves"

Fig.9

Simulation and experimental pre-tension force-displacement curves"

Fig.10

Effect of transverse pre-tension on pull-out force. (a) Pull-out mechanical and displacement curve; (b) Linear fitting of peak pull-out force curve"

Tab.2

Linear fitting of peak values under various friction coefficients"

横向预紧力/N 摩擦因数 斜率k 截距 b
100 0.10 -0.071 08 0.925 19
0.15 -0.092 60 1.261 49
0.20 -0.124 43 1.684 30
200 0.10 -0.089 83 1.201 42
0.15 -0.122 35 1.681 81
0.20 -0.177 31 2.337 95
300 0.10 -0.103 80 1.427 54
0.15 -0.151 86 2.059 79
0.20 -0.212 70 2.806 47

Fig.11

Effect of friction coefficient on yarn pull-out force"

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