Tensile/Shear Behaviour of Multi-stitched/Nano Composites

Bilişik, Kadir; Kaya, Gaye

doi:10.1007/s11664-017-5365-4

Cited by 6 publications

(3 citation statements)

References 22 publications

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“…Recently, Bilisik et al [ 148 ] demonstrated introducing nanostitching to multiscale composites improved the flexural and damage tolerance properties of carbon/epoxy composites by arresting crack propagations. [ 149 ] Shahbaz et al ascertained that MWCNTs grafting with the E‐glass and carbon fiber materials augmented the composite tensile properties while mixing with the polymer matrix caused a more improved flexural property. [ 150 ] The flexural properties of the nanocomposite were determined by following the ASTM 790‐10 [ 151 ] by using the following relations as:

σ_{f} = 3 italicPL / ((), 2 {bh}^{2})

E_{f} = \frac{L^{3} m}{4 {bh}^{3}}

ε_{f} = \frac{6 italicδh}{L^{2}}

where, σ f is the flexural strength or max.…”

Section: Properties Of Cnts Reinforced Carbon Fiber/epoxy Multiscale mentioning

confidence: 99%

Carbon nanotubes in carbon/epoxy multiscale textile preform composites: A review

Bilişik

Syduzzaman

2021

Polymer Composites

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Carbon nanotube integrated textile structural composites are one of the demanded materials especially for space/aerospace and defense industries in the 21st century due to their better damage tolerance properties compared to the metal and ceramics. This review paper exclusively performed on carbon nanotubes (CNTs) added carbon fiber/epoxy multiscale composites, including recent innovative methods of integrating CNTs to carbon filaments using the direct method such as growing on fiber, chemical grafting, and nanostitching or indirect methods such as mixing with matrix and application via lay-up and dip coating. In addition, various composite fabrication techniques, including vacuum bag molding, resin transfer molding, and resin film infusion molding techniques were discussed. Critical thermo-mechanical and electrical properties considering numerous micromechanics based composite modeling and computational analysis were explained. The review concludes that CNTs added carbon fiber/epoxy multiscale composites possess considerable potential in the use of advanced nanocomposites applications.

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σ_{f} = 3 italicPL / ((), 2 {bh}^{2})

E_{f} = \frac{L^{3} m}{4 {bh}^{3}}

ε_{f} = \frac{6 italicδh}{L^{2}}

where, σ f is the flexural strength or max.…”

Section: Properties Of Cnts Reinforced Carbon Fiber/epoxy Multiscale mentioning

confidence: 99%

Carbon nanotubes in carbon/epoxy multiscale textile preform composites: A review

Bilişik

Syduzzaman

2021

Polymer Composites

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“…The similar result was obtained for stitched nanocomposites (CS-CS-N and CS-TS-N) in which they were 2.71% and 7.1% greater with regard to the CSU. The small enhancement in shear strength due to stitching or stitching and carbon nanotubes was mostly referred to the interlayer suppression 71 or receiving the more ductile failure 72 after shear loading. On the contrary to the satin style composites, stitching barely decreased the shear strength of the twill style composites.…”

Section: Shear Strengthmentioning

confidence: 99%

In-plane shear of nanoprepreg/nanostitched three-dimensional carbon/epoxy multiwalled carbon nanotubes composites

Bilişik

Karaduman

Erdogan

et al. 2019

Journal of Composite Materials

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The in-plane shear properties of nanostitched three-dimensional (3D) carbon/epoxy composites were investigated. Adding the stitching fiber or multiwalled carbon nanotubes or nanostitched fiber into carbon fabric preform slightly improved the shear strength and modulus of stitched and stitched nanocomposites. The in-plane shear fracture of the base and nanostructures was extensive delamination and tensile fiber failures in the sheared region. But, the stitched and stitched nanocomposites had angular deformation of the stitching yarns in the fiber scissoring areas, shear hackles in the matrix and successive fiber breakages in the interlayers. Probably, this mechanism prohibited extensive interlayer opening in the nanostitched composites. The results exhibited that introducing the stitching fiber (1.44%) and multiwalled carbon nanotubes (0.03125%) in the base structure enhanced its transverse fracture properties as a form of confined delamination area. Therefore, the damaged tolerance properties of the stitched nanocomposites were enhanced.

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“…This degradation in inplane properties is due to the damage which occurs during the stitching process. This damage includes fiber breakage and fiber misalignment caused by needle and stitch yarn, leading to resin-rich regions around stitches in composites [1,3,7,9,[11][12][13][14][15]. However, delamination resistance was always improved in the studies in which impact behavior was investigated [1,2,4,[7][8][9]12,16,17].…”

Section: Introductionmentioning

confidence: 99%

High velocity impact properties of composites reinforced by stitched and unstitched glass woven fabrics

Behroozi

Nosraty

Tehrani

2021

Journal of Industrial Textiles

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The present research aimed to investigate the effect of stitching angle and stacking sequence of stitched layers on high velocity impact behavior of composites reinforced by glass woven fabrics. To study the effect of stitching angle on ballistic impact behavior, six different angles of (0°), (90°), (45°), (0°,90°), (±45°) and (0°,90°,±45°) were chosen as stitching angles. These stitching angles were applied on eight layers of glass woven fabric. To study the effect of stacking sequence of stitched layers, a different number of layers were stitched together with the angle of 0°. Unstitched and stitched composites were exposed to high velocity impact with 180 m/s using a spherical projectile. The residual velocity of projectile and dimensions of damage area on the composites’ front and back sides were measured. It was found that the sample with the 45° stitching angle had the best behavior against ballistic impact and its energy absorption was significantly higher than the other samples. Stitching also reduces damage area in front and back sides of the composites and inhibits delamination.

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Tensile/Shear Behaviour of Multi-stitched/Nano Composites

Cited by 6 publications

References 22 publications

Carbon nanotubes in carbon/epoxy multiscale textile preform composites: A review

Carbon nanotubes in carbon/epoxy multiscale textile preform composites: A review

In-plane shear of nanoprepreg/nanostitched three-dimensional carbon/epoxy multiwalled carbon nanotubes composites

High velocity impact properties of composites reinforced by stitched and unstitched glass woven fabrics

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