Tensile and bending properties of biaxial weft-knitted and cross-ply thermoplastic composites

Demircan, Özgür; Ashibe, Shinsuke; Kosui, Tatsuya; Nakai, Asami

doi:10.1177/0892705714530751

Cited by 4 publications

(7 citation statements)

References 24 publications

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“…The possible reason for this effect could also be justified by the highest fibers volume fraction of cross-ply composites than other samples. Similar results were also achieved for bending behavior of composite samples, although there were no significant differences between the structures in terms of bending strength and stiffness [96].…”

Section: Thermoplastic Biaxial Weft-knitted Compositessupporting

confidence: 81%

“…Demircan et al developed their investigations regarding the biaxial weft-knitted reinforced thermoplastic composites and focused on differences between these structures and the cross-ply composites in term of their mechanical performance under tensile and bending loads [96,97]. They compared the mechanical performance of a single-layer biaxial weft-knitted reinforced composite with four different cross-ply composite samples which were varied in the numbers of reinforcing layers.…”

Section: Thermoplastic Biaxial Weft-knitted Compositesmentioning

confidence: 99%

“…In the case of multilayered textile reinforced composites, considering the interlaminar shear strength is of the main concern; since, applying tensile and bending loads would be contributed by forming the shear forces between the constitutive components of the resultant composite material [95,96]. It is claimed that the method of shear test could have a significant effect on determining the shear strength of multilayered composites.…”

Section: Thermoplastic Biaxial Weft-knitted Compositesmentioning

confidence: 99%

See 2 more Smart Citations

Biaxial weft-knitted fabrics as composite reinforcements: A review

Hasani

Hassanzadeh

Abghary

et al. 2016

Journal of Industrial Textiles

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Textile products are considered as an acceptable alternative for commonly used composite reinforcement due to their lightweight as well as relatively high specific strength and stiffness. Among the variety of textile structures which could be employed in composite manufacturing, the role of weft-knitted fabrics is almost very limited. This is because employing the weft-knitting technology would provide such structures with inferior mechanical properties due to their highly looped construction as well as low fiber volume fraction. But on other hand, it is important to be noted that some advantages such as high energy absorption, good impact resistance, and formability of knitted structures made the researchers to focus on investigating different methods by which the inferior mechanical properties of ordinary weft-knitted fabrics could be improved. Inserting the reinforcing yarns through the warp and weft direction of the knitted fabrics is considered as one of the effective solution for improving their mechanical behavior which eventually leads to a high potential product called as biaxial weft-knitted fabrics. In this literature, it is aimed to review different aspects of novel designed biaxial weft-knitted fabrics which could be suitable for a broad area of technical application such as composite reinforcements.

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Section: Thermoplastic Biaxial Weft-knitted Compositessupporting

confidence: 81%

Section: Thermoplastic Biaxial Weft-knitted Compositesmentioning

confidence: 99%

Section: Thermoplastic Biaxial Weft-knitted Compositesmentioning

confidence: 99%

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Biaxial weft-knitted fabrics as composite reinforcements: A review

Hasani

Hassanzadeh

Abghary

et al. 2016

Journal of Industrial Textiles

View full text Add to dashboard Cite

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“…3,6,7 Numerous experimental and numerical studies have been carried out on biaxial weftknitted fabrics and their composites. 1,3,[6][7][8][9][10][11][12][13][14][15][16][17][18] A detailed review of the mechanical properties of biaxial weft-knitted fabrics and their fabrication methods was made by Hasani et al 19 Demircan et al 3,12 investigated the tensile, flexural, and impact properties of BWK composites and also proposed a finite element model to predict the flexural modulus.…”

Section: Introductionmentioning

confidence: 99%

Damage and failure mechanisms of biaxial weft-knitted reinforced composites via meso-scale finite element modeling

Yan

Wang

et al. 2022

Journal of Industrial Textiles

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A meso-scale finite element model based on progressive damage was proposed to capture the failure and damage mechanisms of biaxial weft-knitted (BWK) composites. For this purpose, a suitable representative volume element of a BWK composite material was modeled. Then, appropriate boundary conditions were applied to simulate the uniaxial tensile test in the course and wale directions. Damage and failure mechanisms were predicted by developing a VUMAT user material subroutine based on the 3D Hashin criterion. To verify the numerical results, a comparison was made with the experimental data of Hessami et al. 1 It was found that the failure mechanisms of BWK composite are determined by the geometrical parameters of the BWK fabric. Based on the numerical assessments, some recommendations were made to fully exploit the potential of BWK composites as load-bearing structures. The numerical results provided new insights into the effect of the geometric parameters of BWK preforms on the composite failure mechanisms.

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“…Weft‐knitting is a kind of textile reinforcement that confers several advantages to the composite material including formability, drapability, and elongation 1,2 . The stiffness and strength of weft‐knitting composites are usually lower compared to other textile structures.…”

Section: Introductionmentioning

confidence: 99%

Low‐velocity impact resistance and acoustic emission evaluation on mechanical failure of carbon fiber weft‐knitting‐reinforced composites

Tian

Qin

Shi

et al. 2021

Polymers for Advanced Techs

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In this study, the carbon fiber weft‐knitting (CFWK)‐reinforced composites were prepared and the deformation mechanism during acoustic emission (AE) and low‐velocity impact resistance. To fabricate CFWK composites, single‐sided 1 × 1 variable plain stitch, double‐sided interlock structure, and two inter‐ply and intra‐ply hybrid structures of the former two stitches were applied for reinforcements in epoxy films via hot‐pressing. Moreover, we evaluated the tensile and bending properties during AE and investigated the low‐velocity impact properties of CFWK‐reinforced composites to evaluate the failure mechanism of composites. Finally, we analyzed the effects of laminating numbers, ply angle, and fabric structure on the properties of CFWK‐reinforced composites. Results showed that the composites with 1 × 1 variable plain stitch reinforcement exhibited the highest tensile strength and bending strength (206.22 and 213.43 MPa, respectively) among the composites with a two‐layer structure. The tensile fracture strength of [0/90] laying was 35%–50% lower than that of [0/0] laying. In addition, the cluster analysis on AE signal frequency showed that fiber debonding was the main failure mode, accounting for 68% of the total debonding when stretching along the longitudinal direction of the two‐ply composite loop. Under the impact energy of 4 J, the maximum load of CFWK‐reinforced composites with three‐ply interlock increased by 275% compared to that of single‐ply composites. Furthermore, the three‐ply interlock CFWK‐reinforced composites were perforated under impact energy of 10 J.

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Tensile and bending properties of biaxial weft-knitted and cross-ply thermoplastic composites

Cited by 4 publications

References 24 publications

Biaxial weft-knitted fabrics as composite reinforcements: A review

Biaxial weft-knitted fabrics as composite reinforcements: A review

Damage and failure mechanisms of biaxial weft-knitted reinforced composites via meso-scale finite element modeling

Low‐velocity impact resistance and acoustic emission evaluation on mechanical failure of carbon fiber weft‐knitting‐reinforced composites

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