Fracture toughness of filament wound BFR and GFR arc shaped specimens with Charpy impact test method

Demirci, Mehmet Turan; Tarakçıoğlu, Necmettin; Avcı, Ahmet; Erkendirci, Ömer Faruk

doi:10.1016/j.compositesb.2014.04.015

Cited by 29 publications

(31 citation statements)

References 23 publications

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“…Hence, the use of basalt fibers for the fabrication of composite materials and the determination of their mechanical properties have attracted considerable attention in recent years. The tensile, compression, flexural, impact, creep, abrasive wear, fracture, and interlaminar shear strength properties of basalt fiber reinforced composites have been explored in a number of researches , and there are several numbers of researches related with the incorporation of basalt fibers with the fibers of other reinforcement materials, such as glass , carbon , nylon , aramid , hemp , jute , glass/flax , glass/hemp , flax/hemp . Compared to those of neat glass, carbon, nylon, jute, hemp and aramid fiber composites, improvements in impact strength and energy absorption were reported for the basalt/glass , basalt/carbon , basalt/nylon , basalt/jute , basalt/hemp , and basalt/aramid hybrid composites, respectively.…”

Section: Introductionmentioning

confidence: 99%

Hybridization effects on charpy impact behavior of basalt/aramid fiber reinforced hybrid composite laminates

2016

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Basalt/aramid hybrid fiber reinforced composite laminates were prepared to examine the effect of hybridization on Charpy impact behavior of aramid fiber reinforced composite laminates. The effect of position of basalt layers on the impact behaviors was also investigated by preparing hybrid composite laminates with the substitution of basalt layers into different positions. The position change of basalt layers in the hybrid configurations were resulted in variations in the impact behavior. The impact energy and impact damages strictly depended on impact behavior of fiber at impacted surface due to the difference between deformation characteristics of basalt fiber and aramid fiber. When the basalt layer was at the impacted surface, the hybrid composite laminates exhibited a lower impact energy. This was attributed to the restriction in deformation of aramid layers. The position of basalt layers resulted in variations in the impact behavior of hybrid composite laminates. POLYM. COMPOS., 39:467–475, 2018. © 2016 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Hybridization effects on charpy impact behavior of basalt/aramid fiber reinforced hybrid composite laminates

2016

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“…The parameters controlling the impact toughness of the gradient hardened layer are the surface impact toughness, a k 1 , and the gradient, k, for the assumption of linearly gradient distribution of impact toughness during the peened layer. Charpy impact tests are widely used to determine the impact toughness of material [18][19][20]. Figure 4a shows the schematic of fracture of a Charpy specimen at impact load.…”

Section: Modeling Of the Impact Toughness Of A Gradient Hardened Layermentioning

confidence: 99%

Impact toughness of a gradient hardened layer of Cr5Mo1V steel treated by laser shock peening

Xia

Yan

et al. 2015

Acta Mech. Sin.

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Laser shock peening (LSP) is a widely used surface treatment technique that can effectively improve the fatigue life and impact toughness of metal parts. Cr5Mo1V steel exhibits a gradient hardened layer after a LSP process. A new method is proposed to estimate the impact toughness that considers the changing mechanical properties in the gradient hardened layer. Assuming a linearly gradient distribution of impact toughness, the parameters controlling the impact toughness of the gradient hardened layer were given. The influences of laser power densities and the number of laser shots on the impact toughness were investigated. The impact toughness of the laser peened layer improves compared with an untreated specimen, and the impact toughness increases with the laser power densities and decreases with the number of laser shots. Through the fracture morphology analysis by a scanning electron microscope, we established that the Cr5Mo1V steel was fractured by the cleavage fracture mechanism combined with a few dimples. The increase in the impact toughness of the material after LSP is observed because of the decreased dimension and increased fraction of the cleavage fracture in the gradient hardened layer.

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“…Also, the amplitude of the vibration of the composite structure can be controlled by providing the required amount of damping to it, for avoiding the resonance and therefore, to protect the structure from the failure [34]. Although there are several studies [35][36][37][38][39][40] on the mechanical and pressure bursting behavior of FRP tubes and its nanocomposites, the vibration characterization studies of FRP nanocomposite tubes (FRPNCTs) are limited. Moreover, there is no literature has investigated for vibration response of BFRP nanocomposite tubes.…”

Section: Problem Statement and Methodologymentioning

confidence: 99%

Effect of nanoparticles loading on free vibration response of epoxy and filament winding basalt/epoxy and E-glass/epoxy composite tubes: experimental, analytical and numerical investigations

Ilangovan

Kumaran

Naresh

2020

Mater. Res. Express

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In recent times, basalt fiber reinforced polymer (BFRP) nanocomposites is being increasingly used in aerospace applications such as wing and fuselage structures of the aircraft and outer casings of the rocket, automobile engine drive shafts and fuel tanks in the oil and gas industries, which fills the gap between carbon and E-glass fiber reinforced polymer nanocomposites. These structures are subjected to vibrations and exposed to different temperatures in various places during their service life. However, the comparison of vibration response of silica particles reinforced basalt/epoxy and glass/ epoxy nanocomposite tubes in all three approaches, namely, experimental, analytical and numerical (Finite Element Modeling), have not found elsewhere. Analytical and numerical approaches minimize time, manpower and cost. Therefore, investigating the vibration response of different weight contents of these FRP nanocomposite tubes is novel and essential. Hence, in this study, the vibration response of silica nanoparticles reinforced epoxy, basalt/epoxy and E-glass/epoxy composites with different weight contents (0, 0.5, 1 and 1.5%) were investigated. The vibration tests were performed at three different boundary conditions such as cantilever, simply supported and fixed-fixed. The first three modes of vibration were considered for analysis. Besides, the heat deflection temperature and the hardness properties were also studied. The results indicate that the natural frequencies were higher for the fixed-fixed case and the damping parameters were higher for the simply supported case. Vibration properties, heat deflection temperature and hardness values were found to be higher in fiberreinforced nanocomposites than those of epoxy nanocomposites. The data presented in this study will be useful to generate the numerical models for the ground vibration test (GVT).

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Fracture toughness of filament wound BFR and GFR arc shaped specimens with Charpy impact test method

Cited by 29 publications

References 23 publications

Hybridization effects on charpy impact behavior of basalt/aramid fiber reinforced hybrid composite laminates

Hybridization effects on charpy impact behavior of basalt/aramid fiber reinforced hybrid composite laminates

Impact toughness of a gradient hardened layer of Cr5Mo1V steel treated by laser shock peening

Effect of nanoparticles loading on free vibration response of epoxy and filament winding basalt/epoxy and E-glass/epoxy composite tubes: experimental, analytical and numerical investigations

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