A New Theoretical Equation to Estimate Poisson’s Ratio for Coated Bi-axial Warp Knitted Fabrics under Bias Tensile Loading

Chen, Jianwen; Han, Zhiwu; Zhao, Bing; Chen, Wujun; Wang, Mingyang; Zhang, Xu

doi:10.1007/s12221-018-8025-2

Cited by 7 publications

(2 citation statements)

References 33 publications

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“…Luo et al 17,18 have conducted a series of research on biaxial knitted coated fabrics; they presented the tensile strength and tearing strength under uniaxial load in seven in-plane directions and gave the conclusion that the biaxial knitted coated fabrics show strong orthotropic behavior, but the mechanical properties under multiaxial show isotropic behavior. Chen et al 19,20 presented a new equation to estimate Poisson’s ratio of coated biaxial warp-knitted fabrics under bias tensile loading by testing the uniaxial behavior in seven directions of 0°, 15°, 30°, 45°, 60°, 75°, and 90°. Dinh et al 21 investigated the mechanical behavior of knitted fabrics by numerical method, using representative unit cells to analyze the tensile and tearing strength.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive study on mechanical properties of coated biaxial warp-knitted fabrics

Yang

Shang

et al. 2021

Journal of Reinforced Plastics and Composites

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In recent years, coated fabrics have become the major material used in membrane structures. Due to the special structure of base layer and mechanical properties, coated biaxial warp-knitted fabrics are increasingly applied in pneumatic structures. In this article, the mechanical properties of coated biaxial warp-knitted fabrics are investigated comprehensively. First, off-axial tensile tests are carried out in seven in-plane directions: 0°, 15°, 30°, 45°, 60°, 75°, and 90°. Based on the stress–strain relationship, tensile strengths are obtained and failure modes are studied. The adaptability of Tsai–Hill criterion is analyzed. Then, the uniaxial tensile creep test is performed under 24-h sustained load and the creep elongation is calculated. Besides, tearing strengths in warp and weft directions are obtained by tearing tests. Finally, the biaxial tensile tests under five different load ratios of 1:1, 2:1, 1:2, 1:0, and 0:1 are carried out, and the elastic constants and Poisson’s ratio are calculated using the least squares method based on linear orthotropic assumption. Moreover, biaxial specimens under four load ratios of 3:1, 1:3, 5:1, and 1:5 are further tensile tested to verify the adaptability of linear orthotropic model. These experimental data offer a deeper and comprehensive understanding of mechanical properties of coated biaxial warp-knitted fabrics and could be conveniently adopted in structural design.

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Section: Introductionmentioning

confidence: 99%

Comprehensive study on mechanical properties of coated biaxial warp-knitted fabrics

Yang

Shang

et al. 2021

Journal of Reinforced Plastics and Composites

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“…Chen et al. [8] determined that tearing characteristics of PVDF coated bi-axial warp knitted fabrics vary greatly with the bias angles and W-shaped relationship between tearing strength and bias angle, with a local strength peak at 45 angle. In series of works Chen et al.…”

Section: Introductionmentioning

confidence: 99%

Investigation of some weathering impacts on tearing properties of PVC-coated fabrics used for architectural purposes

Dobilaitė

Jucienė

Bliūdžius

et al. 2020

Journal of Industrial Textiles

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This paper reports the comprehensive experimental study of the tearing behaviour of PES/PVC-coated architectural membranes exposed to different accelerated aging conditions. Coated fabrics intended as building envelopes are constantly exposed to the environmental impacts, therefore, it is important to determine the influence of these factors on changes of mechanical properties, and the tear strength was considered to be one of the essential characteristics associated with the life span of a tensioned membrane structures. An accelerated aging model was developed based on the analysis of the aging factors significantly relevant to the building operation. The effect of abrasion, higher temperature and humidity as well as set of these aging factors on tear performance were investigated. The results show that in most cases the tear strength of architectural membranes changes marginally within the limits after exposure to artificial aging. The biggest contributor to tearing changes was high temperature, which could be the dominant component in the aging model. The study provides a better understanding of tearing performance of PVC-coated fabrics in real environmental conditions.

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Experimental and Numerical Investigation of PA66 Fabrics Coated/Uncoated PVC by Biaxial Tensile Tests

Wang

Xifan²,

Shen

2021

Fibers Polym

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A New Theoretical Equation to Estimate Poisson’s Ratio for Coated Bi-axial Warp Knitted Fabrics under Bias Tensile Loading

Cited by 7 publications

References 33 publications

Comprehensive study on mechanical properties of coated biaxial warp-knitted fabrics

Comprehensive study on mechanical properties of coated biaxial warp-knitted fabrics

Investigation of some weathering impacts on tearing properties of PVC-coated fabrics used for architectural purposes

Experimental and Numerical Investigation of PA66 Fabrics Coated/Uncoated PVC by Biaxial Tensile Tests

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