Evaluation of Flexural properties of the U-shape Composite Spring.

Hara, Katsuyuki; Uchida, T.; Watanabe, Yosuke; Nanami, Norimichi; Nakatani, Hayato; Hamada, Hiroyuki

doi:10.1016/j.promfg.2018.07.062

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…As compared to neat UD‐CFRP, improvement of 4.9% and 11.8% for flat and curved specimens, respectively, is reported (Figure 2(a)). The flexural strength in the curved portion is increased due to the prestressed CF in a bent position 38 . The flexural modulus also depicted the same trend with a peak value of 85.2 and 62.2 GPa at 0.3% GO content for flat and curved UD‐CFRP composites, respectively (Figure 2(b)).…”

Section: Resultsmentioning

confidence: 56%

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Relevance of graphene oxide as nanofiller for geometrical variation in unidirectional carbon fiber/epoxy composite

Pathak

Garg

Yokozeki

et al. 2021

J of Applied Polymer Sci

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Curved geometry in unidirectional CFRP (UD‐CFRP) demands ideal shape optimization to attain superior performance while maintaining the desired high strength to weight ratio. Herein, the effect of graphene oxide (GO) as the potential filler to improve the mechanical and thermal properties of flat and curved specimens of UD‐CFRP was investigated. The GO was synthesized using Hummer's method and introduced in the epoxy resin by wet transfer technique. Three‐point and four‐point bending analysis of UD‐CFRP showed maximum flexural strength and modulus at 0.3 wt% GO addition in UD‐CFRP. The improved interfacial adhesion of 0.3 wt% GO incorporated UD‐CFRP was realized by calculating storage modulus, reinforcement efficiency factor (r), C‐factor, adhesion factor, cross‐linking density, and glass transition temperature (Tg) from dynamic mechanical analyzer. Fracture analysis by scanning electron microscope showed the superior interlocking in carbon fiber, and epoxy polymer at 0.3 wt% GO addition.

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Section: Resultsmentioning

confidence: 56%

“…The flexural strength typically relies on the local density of microdefects in this region. Different geometries have different distribution of microdefects, which reduces the reliability of strength measurement by this method 38,40 . The four‐point bending applies a uniform bending moment in the region between the two loading noses.…”

Section: Resultsmentioning

confidence: 99%

Relevance of graphene oxide as nanofiller for geometrical variation in unidirectional carbon fiber/epoxy composite

Pathak

Garg

Yokozeki

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

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Mechanical Characterization of Hybrid Polymer Composite for Marine Application

Raheem¹,

Subbaya

Harish³

et al. 2022

jmmf

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An investigative work was conducted to examine the tensile, flexural and impact strength of carbon fiber reinforced vinyl ester composites filled with different proportions (0, 0.5, 1, 1.5 and 2) of graphitic carbon nitride (g-C3N4) and silicon nitride (Si3N4) filler. Composites were fabricated by hand layup method. Results showed an increase in tensile strength of g-C3N4 and Si3N4 particles content by 1% and beyond which the strength decreased. With the addition of 1wt% of g-C3N4 and Si3N4 in carbon fiber reinforced vinyl ester composites, the flexural strength increased to 16% and the tensile strength increased by 10%. The eroded surface of specimen was observed under scanning electron microscope and the results are reported. Incorporation of nano fillers in hybrid polymer composite will enhance the mechanical properties. Hence hybrid C-V extensively used in marine applications.

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Evaluation of Flexural properties of the U-shape Composite Spring.

Cited by 2 publications

References 5 publications

Relevance of graphene oxide as nanofiller for geometrical variation in unidirectional carbon fiber/epoxy composite

Relevance of graphene oxide as nanofiller for geometrical variation in unidirectional carbon fiber/epoxy composite

Mechanical Characterization of Hybrid Polymer Composite for Marine Application

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