Parametric study on mechanical properties of basalt leno textile applied as concrete reinforcement

2021 ◽  
pp. 136943322110427
Author(s):  
Xiaofei Zhang ◽  
Xin Wang ◽  
Zheqi Peng ◽  
Zhongguo Zhu ◽  
Zhishen Wu
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Loading Rate ◽  
Tensile Load ◽  
Weft Yarn ◽  
Warp Yarn ◽  
Flexible Material ◽  
Yarn Structure ◽  
Force Mechanism ◽  
Concrete Reinforcement

In this study, the mechanical properties of the basalt leno textile applied as concrete reinforcement were experimentally investigated considering different parameters including the impregnation materials, geometrical characteristics (the number of yarns, yarn structure, and yarn spacing), and loading rate. The tensile strength, elastic modulus, and failure mode were examined. Furthermore, the force mechanism of impregnated leno textile under tensile load was analyzed. The experimental results showed that the textile with a stiff impregnation material exhibited a higher strength and modulus than that with a flexible material. The leno textile with the straight yarn had a better performance than those with the twisted yarns. Besides, the constraint of the weft yarns is obvious to the textile in the warp direction, while the warp yarn makes no contributions to the bearing capacity of textile in the weft direction. The weft yarn spacing had a significant impact on mechanical properties of the textile in the warp direction. Furthermore, the loading rate of approximately 1.2 mm/min was suggested to determine the maximum force of the impregnated basalt leno textile. A tensile strength model was proposed considering the effects of the impregnation material, consistent deformation, torsion damage, and twisted angle.

Tensile and Tearing Strength Properties of Printed Cotton Fabric Using Warp Yarn Printing Technique

2016 ◽  
Vol 848 ◽  
pp. 158-161
Author(s):  
Kittisak Ariyakuare ◽  
Charoon Klaichoi ◽  
Naruepon Phaisarntantiwong ◽  
Songkram Senatham
Keyword(s):  
Tensile Strength ◽  
Strength Properties ◽  
Weft Yarn ◽  
Cotton Yarn ◽  
Warp Yarn ◽  
Iso Standard ◽  
Three Samples ◽  
Printing Technique ◽  
White Cotton ◽  
Tearing Strength

Warp yarn of cotton samples were printed with pigment dyes has been investigated. The printed warp yarn was weaved by using white cotton yarn as a weft yarn. The physical properties were evaluated to testing in tensile strength and tearing strength of weaved samples, the test were determined according to ISO standard. The results showed that the tensile strength of three samples are shown to be in the range between 210 and 342 Newtons whereas tearing strength was in the range between 30 and 110 Newtons. The results indicated that the properties of printed samples (handling) were good to very good level.

Reduction of weaving process-induced warp yarn damage and crimp of leno scrims based on coarse high-performance fibers

2018 ◽  
Vol 89 (16) ◽  
pp. 3326-3341
Author(s):  
D Weise ◽  
M Vorhof ◽  
R Brünler ◽  
C Sennewald ◽  
G Hoffmann ◽  
...  
Keyword(s):  
Tensile Strength ◽  
High Performance ◽  
Breaking Strength ◽  
Woven Fabrics ◽  
Pattern Generation ◽  
Weft Yarn ◽  
Warp Yarn ◽  
Tensile Forces ◽  
Application Potential ◽  
First Time

In this paper, a constructively and technologically modified leno loom is introduced, which enables for the first time the low-damage processing of coarse high-performance fibers such as heavy tows with a non-crimped warp and weft yarn system to scrims. The modified leno loom requires just a single shedding element to achieve the vertical and horizontal offset motion of the weft yarn system for pattern generation. These modifications allow the low-damage processing of coarse high-performance fibers in the warp (straight yarn) and the weft yarn systems to create leno fabrics. These leno fabrics produced with the modified loom are investigated experimentally. By means of a three-factorial analysis of variance, the influence of tensile forces operating during processing and weft density on the crimp and the tensile strength of the straight yarn is examined. It is revealed that the property degradation (tensile/breaking strength) of the straight yarn caused by the weaving process is drastically reduced to 4.2% compared to an unprocessed roving. The determined crimp of the straight yarn affected by process-inherent tensile forces is 0.1% at its maximum. Thus, the presented leno-woven fabrics offer an enormous application potential for the reinforcement of brittle matrices, such as ceramic or concrete.

scholarly journals Development of Models to Predict Tensile Strength of Cotton Woven Fabrics

2011 ◽  
Vol 6 (4) ◽  
pp. 155892501100600 ◽  
Author(s):  
Zulfiqar Ali Malik ◽  
Mumtaz Hasan Malik ◽  
Tanveer Hussain ◽  
Farooq Ahmed Arain
Keyword(s):  
Tensile Strength ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Weft Yarn ◽  
Linear Regression Models ◽  
Warp Yarn ◽  
Yarn Strength ◽  
Fabric Density ◽  
Cotton Yarns ◽  
Fabric Strength

Tensile strength has been accepted as one of the most important performance attributes of woven textiles. In this work, multiple linear regression models are developed by using empirical data for the prediction of woven fabric tensile strength manufactured from cotton yarns. Tensile strength of warp & weft yarns, warp & weft fabric density, and weave design were used as input parameters to determine warp- and weft-way tensile strength of the woven fabrics. The developed models are able to predict the fabric strength with very good accuracy. Warp yarn strength and ends per 25 mm are found to be the most dominant factors influencing fabric strength in warp direction while weft yarn strength and picks per 25 mm are most vital in weft direction.

Effect of the viscosity of polyvinyl chloride resin and weaving structures of polyester fabric on the off-axis mechanical properties of PVC coated fabric

2020 ◽  
pp. 152808372098017
Author(s):  
Jong Hyun Eun ◽  
Min Seong Kim ◽  
Sun Min Sung ◽  
Bo Kyoung Choi ◽  
In Uk Jang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyester Fabric ◽  
Tensile Failure ◽  
Weft Yarn ◽  
Warp Yarn ◽  
Plain Weave ◽  
Low Viscosity ◽  
Weave Structure ◽  
Coated Fabric ◽  
Coated Fabrics

PVC coated fabric is a useful structural material mainly used as a roof material because of its lightweight, flexibility. However, the main issues of this PVC coated fabric product is that it is damaged such as tensile failure, peel, and tear when exposed to extreme environments such as strong rain and wind owing to its inferior mechanical properties. Various studies have been reported to improve the mechanical properties of PVC coated fabric, there have been no significant improvement. Therefore, in this study, to improve the mechanical properties of the PVC coated fabrics, applied the low viscosity PVC resin and 4 [Formula: see text] 4 matt weave structure polyester fabric. In addition, the mechanical properties of PVC coated fabrics with various viscosity PVC resins (D10, D8, D5, D2 and D0) were investigated and the mechanical properties of PVC coated fabrics with various weaving structure such as plain weave structure (1 [Formula: see text] 1), matt weave structure (2 [Formula: see text] 2, 3[Formula: see text] 3, and 4 [Formula: see text] 4) were studied. The PVC coated fabric fabricated by low viscosity PVC resin (D10), the tensile strength, tear load, and peel strength improved about 3%, 11%, and 29% compared to the PVC coated fabric fabricated by high viscosity PVC resin (D0). The mechanical properties of the PVC coated fabric fabricated by 4 × 4 matt weave structure polyester fabric was superior to the 1 × 1 plain weave structure polyester fabric and 2 × 2, 3 × 3 matt weave structure polyester fabrics because of the low crimp rate and low intersection point of the warp yarn and weft yarn of the fabric.

scholarly journals Mechanical characterization of heat treated Al2219 hybrid composites

2019 ◽  
Vol 13 (1) ◽  
pp. 4380-4389
Author(s):  
Gowrishankar M. C. ◽  
Sathyashankara Sharma ◽  
B. K. Pavan ◽  
Kamath Kiran ◽  
Kumar Rajendra ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Hybrid Composites ◽  
Impact Resistance ◽  
Tensile Load ◽  
Stir Casting ◽  
Age Hardening ◽  
Peak Hardness ◽  
Al Alloy ◽  
Alloy Matrix

Aluminium alloy matrix composites with Al2O3 reinforcements exhibit superior mechanical properties and utilize in several demanding fields’ viz., automobile, aerospace, defense, sports equipment, electronics and bio-medical. The present work emphasizes on improvement of microstructure and mechanical properties of age hardened graphite and alumina reinforced Al alloy matrix hybrid composites. Different composites with a constant carbon content of 1 weight % and 0, 2, 4 and 6 weight % Al2O3 as reinforcements are fabricated by using stir casting technic and tested for hardness, tensile and impact strength. Scanning electron microscopy (SEM) is performed to analyse the failure mode under tensile load. All the composites are subjected to age hardening treatment with solutionising temperature of 530oC and aging temperatures of 100 and 200oC. The peak hardness of the composites at two aging temperatures are noted. Tensile and impact tests are conducted for the peak aged specimens.  Results show substantial increase in the hardness of the age hardened specimens in the range of 34-44% in comparison with the as cast specimens. Result analysis shows increase in tensile strength (upto 40%) and decrease in impact resistance (upto 33%) with the increase in weight % of reinforcements. As the aging temperature increases a reduction in tensile strength and impact resistance is observed in each composites.

scholarly journals Composite from high density polyethylene (HDPE) reinforced with rice husks (Oryza sativa): Preparation and mechanical property

2020 ◽  
Vol 3 (2) ◽  
pp. 25
Author(s):  
Norin Zamiah Kassim Shaari ◽  
Ahmad Redha Taha ◽  
Suhaiza Hanim Hanipah
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Oryza Sativa ◽  
Citric Acid ◽  
Rice Husk ◽  
High Density Polyethylene ◽  
Extrusion Process ◽  
Rice Husks ◽  
Flexible Material ◽  
Processing Ability

In this study, the composite from HDPE polymer was formulated with the incorporation of Oryza sativa also known in general as rice husks or hulls with two different methods: with the incorporation of plasticiser (glycerol and citric acid) and without plasticisers. The ratio of glycerol to citric acid used in the experiment was 1:2. The aim of this study is to determine the effect of incorporating rice husk with different fibre sizes on the mechanical properties of the HDPE composite. The blending of HDPE with the rice husk was performed in a mixer in processing compounding polymer followed by the extrusion process. Results show that in the absence of the plasticiser, rice husk portrays good compatibility with HDPE polymer, where the composite possessed good tensile strength and elongation. The best plasticising effect was portrayed by filler with 100 µm as it yields the highest tensile strength and strain. In conclusion, the composite could be potentially used for suitable applications, which requires flexible material with better processing ability and would not be brittle.

The Mechanical Properties Study of Woven Fabrics

2011 ◽  
Vol 301-303 ◽  
pp. 1592-1595
Author(s):  
Yao Liu ◽  
Zhong Min Deng ◽  
Yi Ren Chen
Keyword(s):  
Mechanical Properties ◽  
Regression Analysis ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Woven Fabrics ◽  
Weft Yarn ◽  
Warp Yarn ◽  
Elongation At Break ◽  
Yarn Strength ◽  
Tearing Strength

Now the Mechanical Properties of fabrics is widely studied, but always involve in one kind of fabric or a certain property. In order to further understand the fabric tearing strength comprehensively, through a lot of experiments, this article mainly study the single or multiple influences of warp and weft fineness, warp and weft density, warp and weft yarn strength, break elongation of warp and weft yarn, fabric thickness of five fabrics on single stitch tearing strength and trapezoid tearing strength. Then we use SPSS statistical analysis tools to conduct multiple linear regression analysis. We can conclude that warp and weft tightness of fabrics, warp yarn strength, elongation at break of weft yarn have the influence on tearing strength; When trapezoid Angle is changed from 27 degrees to 45 degrees, the influence of warp and weft tightness on it will become bigger, but the influence of warp yarn strength, elongation at break of weft yarn on it will become smaller, and so on.

scholarly journals Effects of Surface Treatments on Mechanical properties of Knitted Structural Composites

1992 ◽  
Vol 1 (6) ◽  
pp. 096369359200100 ◽  
Author(s):  
K Kitagawa ◽  
Y Kankawa ◽  
T Shimamura
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Tensile Load ◽  
Surface Treatments ◽  
Knitted Fabric ◽  
Structural Composites ◽  
Knitted Fabrics ◽  
Silicone Coating ◽  
Structural Composite ◽  
The Matrix

Effects of surface treatments on tensile property of knitted structural composites were discussed. The maximum tensile load of weft knitted fabrics of silicone-coating aramid yams was higher than that of none coated yarns. Moreover, the maximum tensile load of knitted fabrics increased by means of the O2 plasma 2 min. exposure. In 20 min. exposure both maximum tensile load of knitted fabrics and tensile strength of knitted structural composites were lower than those in none and 2 min. exposure. In the O2 plasma 2 min. and 20 min. treated knitted fabric of silicone-coating yarns, it can be seen that the adhesion between the reinforcement and the matrix of the knitted structural composite was weakened. However, this has not affected tensile strength of knitted structural composites.

scholarly journals Fabrication and Mechanical Performance of Non-Crimp Unidirectional Jute-Yarn Preform-Based Composites

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6664
Author(s):  
Yeasin Ali ◽  
Atik Faisal ◽  
Abu Saifullah ◽  
Hom N. Dhakal ◽  
Shah Alimuzzaman ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Performance ◽  
Flexural Modulus ◽  
Tensile Modulus ◽  
Woven Composites ◽  
Weft Yarn ◽  
Warp Yarn ◽  
Load Bearing ◽  
Load Carrying ◽  
Jute Yarn

This work developed novel jute-yarn, non-crimp, unidirectional (UD) preforms and their composites, with three different types of warp jute yarns of varying linear densities and twists in the dry UD preforms, in order to present a possible solution to the detrimental effects of higher yarn twists and crimp at the warp–weft yarn interlacements of traditional, woven, preform-based composites on their mechanical properties. In the developed UD preforms, warp jute yarns were placed in parallel by using a wooden picture-frame pin board, with the minimal number of glass weft yarns to avoid crimp at the warp–weft yarns interlacements, which can significantly enhance the load-bearing ability of UD composites compared to traditional, woven, preform composites. It was found that an optimal combination of jute warp yarn linear densities and twists in the UD preforms is important to achieve the best possible mechanical properties of newly developed UD composites, because it encourages a proper polymer-matrix impregnation on jute fibres, leading to excellent fibre–matrix interface bonding. Composites made from the 25 lb/spindle jute warp yarn linear density (UD25) exhibited higher tensile and flexural properties than other UD composites (UD20, UD30). All the UD composites showed a much better performance compared to the traditional woven preform composites (W20), which were obviously related to the higher crimp and yarn interlacements, less load-carrying capacity, and poor fiber–matrix interfaces of W20 composites. UD25 composites exhibited a significant enhancement in tensile modulus by ~232% and strength by ~146%; flexural modulus by 138.5% and strength by 145% compared to W20 composites. This reveals that newly developed, non-crimp, UD preform composites can effectively replace the traditional woven composites in lightweight, load-bearing, complex-shaped composite applications, and hence, this warrants further investigations of the developed composites, especially on long-term and dynamic-loading mechanical characterizations.

Bending and Impact Properties of Biaxial Weft Knitted Composites

2011 ◽  
Author(s):  
O¨. Demircan ◽  
A. R. Torun ◽  
T. Kosui ◽  
A. Nakai ◽  
H. Hamada
Keyword(s):  
Mechanical Properties ◽  
Volume Fraction ◽  
Impact Damage ◽  
Maximum Load ◽  
Weft Yarn ◽  
Flexural Property ◽  
Warp Yarn ◽  
Cross Sectional ◽  
Impact Properties ◽  
Strength And Stiffness

In order to improve the mechanical properties of weft knitted fabric, straight yarns both in weft and warp directions can be integrated. These types of reinforcements are called biaxial weft knitted structures. Biaxial weft knitted fabrics include weft and warp yarn layers, which are held together by a stitching yarn system. Reinforcing yarns, e.g. glass or aramid fibers, can be used within all yarn systems. They provide necessary strength and stiffness of the fabric [1]. The present work concentrates on the mechanical properties of biaxial weft knitted composites. Mainly the effect of stitch yarn type such as aramid, glass and nylon and biaxial, warp and weft, yarn type such as aramid and glass were investigated. Six plies composite panels were fabricated by hand lay-up lamination method. Volume fraction (Vf) of all composites were kept constant. After production of composites, bending and impact tests had been conducted. GF-GF-NY composites exhibited superior flexural property than other tested composites. It was found that GF-GF-AR composites have higher impact properties (total energy and maximum load) than other tested composites. Better mechanical properties can be achieved by using aramid stitch yarn with combination glass warp and glass weft yarns. A better interfacial bonding of aramid stitch yarn seemed to be cause of this result. After impact test, fracture aspects of reverse side of weft knitted composites were analyzed. The crack propagation was explained by visual inspection. Moreover, impact damage for tested materials was evaluated by cross-sectional observations. For the better understanding of the fracture behavior, schematic drawings of all kind of specimens were drawn. To analyze the damage behavior of tested specimens, the damage lengths were measured. By this observation, the tendency between impact energy and crack length was showed.

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