Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (04): 124-132.doi: 10.13475/j.fzxb.20210506109

• Apparel Engineering • Previous Articles     Next Articles

Dynamic finite element modeling and simulation of single layer clothing ease allowance

YU Yukun1, SUN Yue1,2,3, HOU Jue1,2,3, LIU Zheng1,2,3(), YICK Kitlun4   

  1. 1. School of Fashion Design & Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
    2. Apparel Engineering Research Center of Zhejiang Province, Hangzhou, Zhejiang 310018, China
    3. Zhejiang Provincial Engineering Laboratory of Clothing Digital Technology, Hangzhou, Zhejiang 310018, China
    4. Institute of Textiles & Clothing, The Hong Kong Polytechnic University, Hong Kong 999077, China
  • Received:2021-05-24 Revised:2022-01-07 Online:2022-04-15 Published:2022-04-20
  • Contact: LIU Zheng E-mail:koala@zstu.edu.cn

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Abstract:

In order to investigate the dynamic change of ease allowance of clothing during motion, a dynamic simulation model for single layer clothing ease allowance using finite element method was proposed, simulating the mechanical state and clothing ease allowance generation mechanism. Based on the three-dimensional (3-D) point cloud data, 3-D sub-models of human body and clothing were constructed. Instron universal extensometer and 3-D motion capture system were used to measure the physical properties of clothing and the coordinates of human trunk during dynamic motion, then a finite element model of a single layer clothing ease allowance was established. The finite element simulation software was used for dynamic simulation, finally, the ease allowance obtained by simulation is compared and verified with the ease allowance in real motion state. The results show that the minimum average difference between the simulation and experiment is 0.24 mm, and the minimum relative mean square error is 1.81 mm.The simulation coordinate value is significantly correlated with that in experiment at the level of 0.01 (two tails). It indicated that the simulation results can accurately predict the dynamic garment ease allowance around the chest during motion.

Key words: clothing ease allowance, finite element analysis, numerical simulation, three-dimensional modeling, dynamic simulation

CLC Number: 

  • K826.16

Fig.1

Human-clothing contact coordinate system"

Fig.2

Modeling process of human body garment 3-D model"

Tab.1

Material parameters of finite element model"

结构 材料属性 密度/
(kg·m-3)		 材料参数
C10/
kPa		 C01/
kPa		 C11/
kPa		 C20/
kPa		 C02/
kPa		 弹性模
量/kPa		 泊松比
乳房 Mooney-Rivlin 1.00×103 0.25 0.26 1.87 3.90 3.40 — —
外部软组织 各向同性 1.00×103 — — — — — 150.00 0.30
服装 各向同性 1.43×103 — — — — — 0.20 0.19

Fig.3

Test diagram of 3-D motion capture instrument. (a) Sticky marking ball; (b) Sticky marking ball of computer-perspective"

Fig.4

Finite element model of human body(a) and clothing(b)"

Tab.2

Human body and clothing contact types"

接触体名称 接触体类型 服装 乳房 外部软组织 躯干
服装 变形体 — T T —
乳房 变形体 T — G G
外部软组织 变形体 T G — G
躯干 刚体 — — — —

Fig.5

Boundary conditions in finite element simulation. (a) Gravity boundary conditions of human body;(b) Gravity boundary conditions of clothing;(c) Displacement boundary conditions of human torso"

Fig.6

Cloud picture of displacement in state of dressing at different times"

Fig.7

Net body displacement cloud picture at different times"

Fig.8

Gap simulation value at different times"

Fig.9

Movement trend verification of main pares of human bust section. (a) Movement trend of front center; (b) Movement trend of left BP point; (c) Movement trend of right BP point; (d) Movement trend of back center"

Fig.10

Movement trend verification of main parts of clothing bust section. (a) Movement trend of front center; (b) Movement trend of left BP point; (c) Movement trend of right BP point; (c) Movement trend of back center"

Tab.3

Correlation analysis of clearance"

相关性系数 T1 T2 T3 T4 T5 T6
皮尔逊相关系数 0.830 0.706 0.722 0.733 0.411 0.828
显著性(双尾)系数 0.001 0.010 0.008 0.007 0.185 0.001
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