Nano-silica inclusion effects on mechanical and dynamic behavior of fiber reinforced carbon/Kevlar with epoxy resin hybrid composites

Alsaadi, Mohamad; Bulut, Mehmet; Erkliğ, Ahmet; Jabbar, Arkan

doi:10.1016/j.compositesb.2018.07.015

Cited by 91 publications

(45 citation statements)

References 25 publications

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“…Accordingly, the damping of the CSP filled polyester showed increasing trend as the CSP content was increased up to 8 wt%. The damping ratio decreased slightly when the content of CSP was beyond 8 wt% due to the aggregation of CSP and hence these particles would decrease the internal friction and the load transfer between composite's constituents, which is in consistent with the observation by Zhou et al [41] and Alssadi et al [27]. At relatively higher CSP weight fractions (i.e.…”

Section: Free Vibration Characteristicssupporting

confidence: 90%

“…The incorporation of little content of CSP (4-8 wt%) within the polyester matrix could offer a large amount of interfacial region, which enhances the energy dissipation by hysteresis damping. The microparticles with very low aspect ratios could highly increase the damping of the composite as stated by Finegan and Gibson [39] and Alsaadi et al [27]. Incorporating of CSP within the polyester could also produce a weak interface with the polyester matrix.…”

Section: Free Vibration Characteristicsmentioning

confidence: 93%

“…Meanwhile, damping ratio increased by 29% when adding 5% of borax and decreased after further addition of borax filler. Alsaadi et al [27] investigated the effect of inclusion nano-silica particles (from 0.5 to 3 wt%) on the dynamic properties (natural frequency and damping ratio) of the carbon/Kevlar/epoxy hybrid composite. Their study showed that maximum improvement (about 20.5%) in the natural frequency of the hybrid composite obtained at 0.5 wt% of nano-silica content, whereas damping ratio of this composite reduced by 37% compared to composites without nano-silica filler.…”

Section: Eiras and Pessanmentioning

confidence: 99%

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Mechanical and free vibration properties of clamshell particles/polyester composites

Mostafa

Hunain

Khafaji

2020

Mater. Res. Express

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In this work, an experimental investigation was implemented to identify the effect of adding clamshell powder (CSP) into the polyester matrix on the tensile and impact properties along with vibration characteristics of the particulate composites towards using eco-friendly reinforcement phase. Different weight ratios of clamshell powder, ranged from 0 to 20 wt%, were loaded into the polyester resin with particle sizes ranged from 25 to 75 μm. Tensile, Charpy impact and free vibration tests were performed to the specimens fabricated from the neat polyester and CSP-filled polyester. The results showed that the inclusion of CSP into the polyester matrix could improve the tensile modulus of the polyester up to 50% when the CSP weight ratio equals to 12%. Meanwhile, the strain-to-failure, tensile and impact strengths showed decreasing trends with increasing the CSP filler content owing to the weak adhesion (bonding) strength between CSP and the polyester matrix. Maximum improvements in the fundamental natural frequency and damping ratio of CSP-filled polyester were 24% (at 12 wt% of CSP) and 21% (at 8 wt% of CSP), respectively. Based on the results, the clamshell powder could be used as a very cheap bio-filler material within the polyester matrix if the high stiffness composites with improved damping properties are required.

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Section: Free Vibration Characteristicssupporting

confidence: 90%

Section: Free Vibration Characteristicsmentioning

confidence: 93%

Section: Eiras and Pessanmentioning

confidence: 99%

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Mechanical and free vibration properties of clamshell particles/polyester composites

Mostafa

Hunain

Khafaji

2020

Mater. Res. Express

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“…Hand Lay-up process was applied to prepare samples of composite and hybrid nanocomposite material. Such materials were made using a glass mold having dimensions of (260×140×3.4) mm 3 . The inward of the mold was covered with thermal sheet which helps in extracting the specimens easily.…”

Section: Composite and Hybrid Nanocomposite Materials Preparationmentioning

confidence: 99%

“…Study of dynamic properties of the composite materials is very important for the designer engineers. In polymeric composite materials the energy was dissipated under vibration due to its viscoelastic nature [3]. The damping ratio is the most important factor which affect the dynamic behavior of such materials [4].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the effect of multi wall carbon nano tubes on the dynamic characteristics of woven kevlar/carbon fibers-polyester composites

Aubad

Abass

Shareef

2020

Mater. Res. Express

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This research offers an experimental and numerical study on the influence of multi-wall carbon nanotubes (MWCNTs) addition with different weight fractions on the dynamic characteristics of the unsaturated polyester (UP) reinforced by hybrid laminate composites. The laminate composites were prepared for only three layers as a total number of layers in such composites using Kevlar fibers and/or carbon fibers with different volume fractions. Both types of fibers were in the form of plain woven at (0°/90°) angle direction. Hand lay-up method was used to prepare the test samples. It was found that The best mechanical and dynamic properties based on the experimental study have been obtained for unsaturated polyester reinforced with (MWCNTs) particles at weight fraction (0.4% wt). Composite material made of unsaturated polyester reinforced with (MWCNTs) particles was also prepared with the same weight fraction of MWCNTs. Finite element method was used to model the free vibration of a cantilever beam made of composite material. ANSYS software composite Prep-Post (ACP) integrated within ANSYS Workbench software (18.2) was used to solve the FE problem. Field emission scanning electron microscopy (FESEM) and scanning electron microscopy (SEM) are applied to check the morphological properties of the composite material and the dispersion of MWCNT nanoparticles in the polymer matrix. Experimental and numerical Results obtained in the present work showed that the natural frequency and damping ratio of nano composite specimens increase with increasing weight fraction of MWCNTs. The results also showed that composite and hybrid composite materials with (0.4% wt) MWCNTs have higher values of natural frequency and damping ratio. It was found that the natural frequency for the hybrid nano composite with stacking sequence (UP+K/K/ K+MWCNT) increased by about 10.4% when adding MWCNTs compared with (UP+K/K/K) laminated composite while it becomes 13.82% and 5.8% for (UP+K/C/K+MWCNT) and (UP+C/K/C+MWCNT) hybrid nano composite material in comparison with that without MWCNTs. The increase percentages of the damping ratio of the such materials have been calculated and it was found to be, 12.23%, 15.9% and 8.6%, respectively. An agreement between the experimental and numerical results has been obtained from flexural and vibration tests with maximum errors not exceeded 3.4% and 9.34%, respectively.

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Axial and lateral buckling analysis of kevlar/epoxy fiber‐reinforced composite laminates incorporating silica nanoparticles

Özbek

2020

Polymer Composites

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The aim of this study was to experimentally determine the effect of silica nanoparticles (NS) on the buckling characteristics of Kevlar/epoxy fiber reinforced composite laminates. The composite samples with different weight fractions of NS particles, namely 0.0, 0.5, 1.0, 1.5 and 2.5 wt%, were prepared by vacuum assisted resin transfer molding (VARTM) and subjected to axial and lateral buckling tests. Additionally, the buckling tests were performed on the samples with different lengths (125, 150, 175, 200 and 225 mm) to analyze in more detail the influence of NS fractions on axial and lateral buckling performances. Morphology and failure mechanisms of the samples were analyzed using scanning electron microscopy images of critical regions of each sample. The results showed that the incorporation of NS particles led to higher critical buckling load values for both axial and lateral buckling. The highest critical buckling load values for both axial and lateral buckling events were observed for 1.5 wt% NS particle content in Kevlar/epoxy composite laminates. Further

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Nano-silica inclusion effects on mechanical and dynamic behavior of fiber reinforced carbon/Kevlar with epoxy resin hybrid composites

Cited by 91 publications

References 25 publications

Mechanical and free vibration properties of clamshell particles/polyester composites

Mechanical and free vibration properties of clamshell particles/polyester composites

Investigation of the effect of multi wall carbon nano tubes on the dynamic characteristics of woven kevlar/carbon fibers-polyester composites

Axial and lateral buckling analysis of kevlar/epoxy fiber‐reinforced composite laminates incorporating silica nanoparticles

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