Mechanical Properties of Warp-Knitted, Fabric-Reinforced Composites

1993 ◽  
Vol 12 (10) ◽  
pp. 1096-1110 ◽  
Author(s):  
Wei-Liang Wu ◽  
Masaya Kotaki ◽  
Akihiro Fujita ◽  
Hiroyuki Hamada ◽  
Miyako Inoda ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Knitted Fabric ◽  
Reinforced Composites ◽  
Warp Knitted Fabric

scholarly journals Mechanical Properties of Welt Knitted Fabric Reinforced Composites

1995 ◽  
Vol 4 (3) ◽  
pp. 096369359500400 ◽  
Author(s):  
Hiroyuki Hamada ◽  
Asami Nakai ◽  
Akihiro Fujita ◽  
Miyako Inoda
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Tensile Properties ◽  
Fracture Mode ◽  
Knitted Fabric ◽  
Reinforced Composites ◽  
Reinforced Composite ◽  
Plain Knitted Fabric ◽  
Knitted Structure

In this paper, welt knitted fabric reinforced composites were fabricated and its tensile properties were measured. Changing knitted structure from plain knit to welt knit caused changing mechanical properties, particularly isotropic tensile strength could be obtained. The fracture mode of welt knitted fabric reinforced composite was similar that of plain knitted fabric reinforced composite.

Environmental Corrosion Resistance of Textile Reinforced Composites in Seawater

2015 ◽  
Vol 813 ◽  
pp. 140-146
Author(s):  
Ning Ning Wang ◽  
Jia Ying Sun ◽  
Cheng Yan Zhu
Keyword(s):  
Corrosion Resistance ◽  
Bending Strength ◽  
Mechanical Performance ◽  
Knitted Fabric ◽  
Reinforced Composites ◽  
Surface Appearance ◽  
Bending Performance ◽  
Average Loss ◽  
Textile Reinforced Composite ◽  
Warp Knitted Fabric

In order to study on mechanical performance as the target of environmental corrosion resistance property, three kinds of glass fiber fabrics like biaxial warp knitted fabric, biaxial stitch-bonded felt and three axial warp knitted fabric were used to prepare textile reinforced composites in five layers laminated structure, which were soaked in seawater environment for 180 days. The result showed that, the surface appearance of textile reinforced composite became muddy and the color became darker, the tensile strength and bending strength of composites decline of the whole with the extension of soak time, the average loss rate of tensile and bending performance are respectively 24.8% and 56.5%, all of these provide the theoretical basis for researching and developing high-quality composite materials.

The Axial Warp-Knitted Fabric and its Reinforced Composite

2011 ◽  
Vol 332-334 ◽  
pp. 837-840
Author(s):  
Yi Hua Bu ◽  
Yan Feng ◽  
Hua Wu Liu
Keyword(s):  
Mechanical Properties ◽  
Woven Fabrics ◽  
Advanced Materials ◽  
Knitted Fabric ◽  
Knitted Fabrics ◽  
Unique Structure ◽  
Reinforced Composite ◽  
And Performance ◽  
Warp Knitted Fabric ◽  
Composite Reinforcement

The structure and performance of the axial warp-knitted composite were introduced, including bi-axial and multi-axial organizations. According to the unique structure of this fabric, the mechanical properties and the advantages as a composite reinforcement were compared with regular staple woven fabrics. The advantages of composites reinforced by bi-axial and multi-axial knitted fabrics were discussed and the applications of such advanced materials were briefly presented.

Tensile Properties on Single-Bar Modified Tricot Fabric Reinforced Composites

2012 ◽  
Vol 535-537 ◽  
pp. 223-226 ◽  
Author(s):  
Xiao Hong Ma ◽  
Zhi Gang Qin
Keyword(s):  
Elastic Modulus ◽  
Tensile Properties ◽  
Unsaturated Polyester ◽  
Testing Machine ◽  
Tensile Load ◽  
Knitted Fabric ◽  
Reinforced Composites ◽  
Stress Strain ◽  
Universal Material Testing Machine ◽  
Warp Knitted Fabric

Four kinds of single-bar modified tricot fabrics are knitted on a Raschel latch needle warp knitting machine with glass continuous-filament yarns. The glass warp knitted fabric/ unsaturated polyester resin composites are produced by manual molding technology. The tensile properties of composite samples are tested on the universal material testing machine. The stress-strain curves, elastic modulus, fracture strengths of composites are analyzed in the course, wale and diagonal directions. The results show that the tensile stress/strain curves of single-bar modified tricot warp knitted fabric reinforced composites were nonlinear. The tensile properties of composites possess obvious anisotropic characteristics. The values of elastic modulus and tensile strength were in relation to the yarn numbers bearing tensile load in tensile directions

Mesoscale model for elastic modulus of warp-knitted fabric-reinforced composites based on spring model

2019 ◽  
Vol 50 (1) ◽  
pp. 46-69
Author(s):  
Hadi Dabiryan ◽  
Mohammad H Ashouri
Keyword(s):  
Elastic Modulus ◽  
Mesoscale Model ◽  
Tensile Modulus ◽  
Theoretical Data ◽  
Tensile Tests ◽  
Geometrical Model ◽  
Knitted Fabric ◽  
Reinforced Composites ◽  
Spring Model ◽  
Warp Knitted Fabric

In this paper, a ‘mesoscale spring model’ was generated to predict the tensile modulus of warp-knitted fabric-reinforced composites. A previously developed geometrical model was used for generating a mechanical model as a set of series and parallel springs. For this purpose, the unit cell of straight line model was discretized into different segments. Each segment was modelled as a spring with definite constant based on the alignment of yarns in the segment. Warp-knitted fabrics (Queen's Cord) were used as reinforcement of composites. In order to validate the presented model, samples of composites were produced using hand layup method. Tensile tests were carried out on the prepared samples. The comparison between theoretical and experimental elastic modulus showed a reasonable agreement between experimental and theoretical data. Also, the comparison between the results of different models and experimental data showed that the results of spring model are closer to the experimental results than that of Krenchel's model. It can be concluded that the spring model can predict adequately the elastic modulus of composites.

scholarly journals Bending properties of 2.5 Dimensional Warp Knitted Fabric Reinforced Composites

1992 ◽  
Vol 1 (6) ◽  
pp. 096369359200100 ◽  
Author(s):  
W-L Wu ◽  
M Kotaki ◽  
H Hamada ◽  
M Inoda ◽  
Z Maekawa ◽  
...  
Keyword(s):  
Future Application ◽  
Knitted Fabric ◽  
Reinforced Composites ◽  
Bending Properties ◽  
Transfer Molding ◽  
Reinforced Composite ◽  
Fabric Structure ◽  
Knitted Structure ◽  
Warp Knitted Fabric ◽  
Face Structure

A study of bending properties of 2.5 dimensional warp knitted fabric reinforced composites is presented. Two kinds of 2.5 dimensional knitted fabric structure have been adopted. It is found that the mechanical properties of 2.5 dimensional warp knitted fabric reinforced composite with face structure of back half is superior to that with face structure of single dembigh. The effect of stretching the knitted structure before molding has also been taken into account. Finally, the future application of the 2.5 dimensional warp knitted fabric, e.g., to the resin transfer molding, is suggested.

Mechanical Properties of Weft Knitted Fabric Reinforced Composites.

1993 ◽  
Vol 19 (5) ◽  
pp. 179-188 ◽  
Author(s):  
W.L. WU ◽  
M. INODA ◽  
M. KOTAKI ◽  
A. GOTO ◽  
A. FUJITA ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Knitted Fabric ◽  
Reinforced Composites ◽  
Weft Knitted Fabric

scholarly journals Bending properties of Warp Knitted Fabric Reinforced Composites

1992 ◽  
Vol 1 (5) ◽  
pp. 096369359200100 ◽  
Author(s):  
W-L Wu ◽  
M Kotaki ◽  
A Fujita ◽  
H Hamada ◽  
M Inoda ◽  
...  
Keyword(s):  
Bending Strength ◽  
Knitted Fabric ◽  
Back Side ◽  
Reinforced Composites ◽  
Bending Properties ◽  
Knitted Structure ◽  
Warp Knitted Fabric

This paper dealt with the bending properties of warp knitted fabric reinforced composites. With the increasing of course density and the variation of knitted structure, the bending strength and modulus increased in course direction and kept invariable in wale direction. Furthermore, the specimen setting back side of knitted fabric at tensile side exhibited superior bending strength in course direction.

scholarly journals Finite Element Modeling for the Uni-Axial Tensile Behaviour of Metallic Warp-Knitted Fabric

2018 ◽  
Vol 26 (2(128)) ◽  
pp. 49-54 ◽  
Author(s):  
Hai-Yan Xu ◽  
Jin-Hua Jiang ◽  
Nan-Liang Cheng ◽  
Fang-Bing Lin ◽  
Hui-Qi Shao
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Tensile Force ◽  
Complex Structure ◽  
Numerical Results ◽  
Tensile Behaviour ◽  
Knitted Fabric ◽  
Axial Tensile ◽  
Tensile Process ◽  
Warp Knitted Fabric

The finite element analysis method (FEM), for its advantages of lower time and economic costing in predicting the mechanical properties of fabrics, was applied to warp-knitted fabrics. In this paper, two bar warp-knitted fabric knitted with wires was used as reflecting mesh antennas. Firstly the loop unit of the metallic warp-knitted fabric was simulated in 3-D by TexGen software. Secondly the 3-D loop unit model was inputted into ABAQUS software to form a model of the metallic warp-knitted fabric sheet for uni-axial tension analysis. Thirdly numerical results were obtained after setting the parameters in ABAQUS. Finally numerical results were verified by uni-axial tensile experiments on the metallic warp-knitted fabric. The results showed that the simulation was in good agreement with the experimental tensile process, where the transfer of yarns between loops when in low fabric elongation and in yarn elongation when in high fabric elongation were simulated by FEM of warp-knitted fabric in the tensile process. Also the same trend of tensile force was found in experiment and FEM results. Therefore it can be concluded that FEM can be used to predict the mechanical properties of warp-knitted fabric with a complex structure.

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