Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (06): 20-26.doi: 10.13475/j.fzxb.20180406407

• Textile Engineering • Previous Articles     Next Articles

Mechanical behavior and energy dissipation of polyvinyl chloride membrane under uniaxial multi-level cyclic loading

WANG Zexing(), ZHU Wenjia, HE Bin, LIU Chao   

  1. College of Textile and Fashion, Hunan Institute of Engineering, Xiangtan, Hunan 411104, China
  • Received:2018-04-27 Revised:2019-03-06 Online:2019-06-15 Published:2019-06-25

Abstract:

In order to investigate the mechanical behavior and energy dissipation of architectural membrane under multi-level loading, the uniaxial multi-level cyclic loading tests were conducted based on the polyvinyl chloride (PVC) membrane, and its deformation behavior, energy dissipation and damage properties were also analyzed. The experimental results show that the peak-strength of warp samples is lower than that of uniaxial tensile strength, and the fill samples is higher that of uniaxial tensile strength under multi-level cyclic loading. Under multi-level cyclic loading, the loading and unloading elastic modulus increase, and the later is higher than former. Compared with warp samples, the fill samples show higher total absorption strain energy, elastic strain energy and dissipated energy at lower loading level, while the indexes are lower at higher loading level. As the PVC membrane is always in viscoelastic plastic stage, it is more reasonable that damage variation is defined based on accumulative plastic deformation, compared with elastic modulus variation and accumulative dissipated energy.

Key words: polyvinyl chloride membrane, multi-level cyclic loading, energy dissipation, damage variable

CLC Number: 

  • TS101

Fig.2

Fracture stress-strain curves of tested specimens"

Fig.2

Stress-strain curves of tested specimens under multi-level cyclic loading and unloading"

Fig.3

Level 2 stress-strain curves of W-1 specimen"

Fig.4

Elastic modulus curves. (a) Warp specimens; (b) Fill specimens"

Fig.5

Energy variation curves with stress and normalized stress. (a) Total absorption strain energy with stress; (b) Elastic strain energy with stress; (c) Dissipated energy varied with stress; (d)Total absorption strain energy with normalized stress; (e) Elastic strain energy with normalized stress; (f) Dissipated energy varied with normalized stress"

Fig.6

First and second levels stress-strain curves of typical tested samples"

Fig.7

Variation curves of energy dissipation rate with stress (a) and normalized stress (b)"

Fig.8

Curves of damage variable DU and cycle number"

Fig.9

Curves of Damage variable Dε and cycle number"

[1] CHILTON J, VENLASCO R. Applications of textile composites in the construction industry [C]//LONG A C. Design and Manufacture of Textile Composites. Cambridge: Woodhead Publishing Limited, 2005: 426-427.
[2] 陈守辉. 机织建筑膜材料料料拉伸性能研究:从单轴、双轴到多轴[D]. 上海: 东华大学, 2008: 2-26.
CHEN Shouhui. Tensile performance of woven membrane materials under uni-axial, bi-axial and multi- axial loads[D]. Shanghai: Donghua University, 2008: 2-26.
[3] AMBROZIAK A. Mechanical properties of pre- contraint 1202s coated fabric under biaxial tensile with different load ratios[J]. Construction and Building Materials, 2015,80(1):201-224.
[4] 陈务军, 唐雅芳, 赵大鹏, 等. 建筑膜材料料力学性能与焊接缝合性能试验研究[J]. 空间结构, 2007,13(1):37-44.
CHEN Wujun, TAN Yafang, ZHAO Dapeng, et al. Experiments on the mechanical properties and the welded seam properties of architectural membranes[J]. Spatial Structures, 2007,13(1):37-44.
[5] 赵大鹏, 陈务军, 任小强. 高强PVDF/PES膜材料料缝合与膜材料料力学性能试验研究[J]. 空间结构, 2009,15(1):77-83.
ZHAO Dapeng, CHEN Wujun, REN Xiaoqian. Exp- eriments on mechanical properties of high-strength PVDF/ PES fabric and welded seams[J]. Spatial Structures, 2009,15(1):77-83.
[6] 张丽, 陈务军, 董石麟. PVDF/PES建筑织物膜材料料力学性能单双轴拉伸试验[J]. 空间结构, 2012,18(3):41-48.
ZHANG Li, CHEN Wujun, DONG Shilin. Mechanical properties analysis of architectural PVDF/ PES fabrics with uni-tensile and bi-axial test[J]. Spatial Structures, 2012,18(3):41-48.
[7] 汪泽幸, 蒋金华, 陈南梁. 反复加载下机织物增强柔性复合材料的力学行为[J]. 纺织学报, 2014,35(1):51-56.
WANG Zexing, JIANG Jinhua, CHEN Nanliang. Mechanical behavior of Woven fabric reinforced flexible composites under repeated loading[J]. Journal of Textile Research, 2014,35(1):51-56.
[8] CHEN J W, CHEN W J, ZHANG D X. Experimental study on uniaxial and biaxial tensile properties of coated fabric for airship envelopes[J]. Journal of Reinforced Plastics and Composites, 2013,33(7):630-647.
[9] WANG F X, CHEN Y L, XU W, et al. Experimental study on uniaxial tensile and welding performance of a new coated fabric for airship envelopes[J]. Journal of Industrial Textiles, 2017,46(7):1474-1497.
[10] ZHANG Y Y, ZHANG Q L, LEI K, et al. Experimental analysis of tensile behaviors of polytetrafluoroethylene- coated fabrics subjected to monotonous and cyclic loading[J]. Textile Research Journal, 2013,84(3):231-245.
[11] ZHANG Y Y, ZHANG M Y. Aging properties of polyvinyllidenefluoride-coated polyesters used in tensioned membrane structure: effect of loading protocol and environment[J]. Advances in Materials Science and Engineering, 2017,24:1-10.
[12] AMBROZIAK A, KŁOSOWSKI P. Mechanical properties of polyvinyl chloride-coated fabric under cyclic tests[J]. Journal of Reinforced Plastics and Composites, 2013,33(3):225-234.
[13] LEMAITRE J, DESMORAT R. Engineering Damage Mechanics: Ductile, Creep, Fatigue and Brittle Fai-lures[M]. Berlin: Springer-Verlag, 2005: 17.
[1] WANG Zexing, WU Bo, LI Shuai, HE Bin. Energy dissipation evolution of jute fabric / polyethylene composite under cyclic stress relaxation [J]. Journal of Textile Research, 2020, 41(10): 74-80.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!