Nanoindentation of freestanding single Kevlar® fibers with an adjusted indentation area function

Patel, Hinal R.; Flood, Shannon H.; Raju, Hermise; Tenorio, Max; Pelegri, Assimina A.

doi:10.1016/j.jmrt.2022.05.065

Cited by 2 publications

(2 citation statements)

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“…These composites have gained widespread adoption in the fabrication of sensitive equipment due to their exceptional material properties, including high strength, 22 high moduli, and good stabilities, 23 as well as excellent thermal resistance 24 . Aramid fiber, a synthetic organic fiber composed of highly crystalline aromatic polyamides, 25 exhibits excellent fatigue resistance, a high strength‐to‐weight ratio, 23 resistance to abrasion, 26 high energy absorption, 27 and resistance to creep 28 . Its unique combination of high stiffness and high elongation at fracture results in outstanding impact resistance 29 .…”

Section: Introductionmentioning

confidence: 99%

“…24 Aramid fiber, a synthetic organic fiber composed of highly crystalline aromatic polyamides, 25 exhibits excellent fatigue resistance, a high strengthto-weight ratio, 23 resistance to abrasion, 26 high energy absorption, 27 and resistance to creep. 28 Its unique combination of high stiffness and high elongation at fracture results in outstanding impact resistance. 29 The utilization of aramid fiber reinforced composites in the automotive industry and related sectors has witnessed an increase.…”

Section: Introductionmentioning

confidence: 99%

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The effects of graphene oxide addition on low velocity impact performance of aramid fiber reinforced epoxy composites

Azimpour‐Shishevan,

Mohtadi‐Bonab,

Rahmatinejad

2023

J of Applied Polymer Sci

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In this study, the impact of incorporating graphene oxide (GO) nanoparticles into the matrix of aramid fiber reinforced polymer (AFRP) composites was investigated. The GO nanoparticles were dispersed in the AFRP matrix at three different weight percentages: 0.1%, 0.3%, and 0.5%. The fabrication of the GO dispersed AFRP nanocomposites was achieved using the vacuum assisted resin infusion molding (VARIM) method, and the AFRP plates were cut using a water jet. The sectioned specimens of the fabricated nanocomposites were subjected to low velocity impact tests. The effects of introducing GO nanoparticles at different percentages were evaluated by analyzing the contact force, deflection, maximum absorbed energy versus time and contact force versus deflection curves. Finally, the key parameters of low velocity impact, including contact force, deflection, and maximum absorbed energy, were compared for the different fabricated AFRP nanocomposites. Based on the results, the AFRP composite with 0.3 wt.% of GO nanoparticles exhibited the best performance under low velocity impact loading conditions. However, the agglomeration of nanoparticles became a significant challenge when higher percentages of GO nanoparticles were added to the composite structure. The findings highlight the importance of determining the optimal percentage of nano materials for incorporation into composite structures.

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