Influence of marine environment on mechanical properties of glass fiber reinforced composites

Padmaraj, N H; Chethan, K N; Utkarsh, Suyash; Banerjee, Siddharth; Utkarsh,

doi:10.1088/1757-899x/377/1/012132

Cited by 8 publications

(6 citation statements)

References 8 publications

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“…This is because during the vacuum infusion method, the resin is rapidly moved by the narrow spaces and long flow paths between the reinforcing fibers. This situation allows the composite material to have less void structure and therefore causes less water absorption [7]. Furthermore, an internal evaluation of each group reveals that the samples with inner layer fiber web and outer layer woven fabric had higher water absorption values in both groups.…”

Section: A Physical Analysismentioning

confidence: 99%

“…Both composites exhibited brittle failure after prolonged exposure to seawater, and the decrease in strength and strain at failure suggests degradation in the matrix and at the fiber-matrix interface [5]. In another study, Padmaraj et al (2018) stated the effect of sea water on mechanical properties of glass fiber reinforced composites. The mechanical properties of glass/polyester laminates were studied the influence of artificial sea water.…”

Section: Introductionmentioning

confidence: 99%

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Examination of the effects of reinforcement type, production method and seawater aging on the impact strength of composites developed for marine industry

2023

Proceeding Book of 4th International Conference on Engineering and Applied Natural Sciences ICEANS 2023

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Metals and wood have been used extensively in the marine industry since ancient times, but many metals are susceptible to corrosion, particularly because seawater contains a high concentration of salt. Conversely, since composite materials lower production costs and enhance the vehicle's structural qualities, they have become increasingly popular for use in marine vehicle bodies, particularly in the last 40 years. In this study, E-glass reinforced composite structures are designed and produced by two different production methods (hand lay-up and vacuum infusion). E-glass woven fabric and E-glass carded fiber web are used as reinforcement materials, while epoxy is used as resin material. Half of the composite samples are kept in seawater taken from the Marmara Sea for a month to monitor the aging effect of seawater. Then, the impact strength of samples treated and untreated with seawater is examined, and the effects of reinforcement material, production method and seawater treatment on the mechanical properties of the samples are discussed. The findings prove that especially 3-layer woven fabric reinforced composites show the best impact resistance value with 0% water absorption rate. Additionally, it has been observed that aging with sea water slightly reduces the impact strength of the material.

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Section: A Physical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Examination of the effects of reinforcement type, production method and seawater aging on the impact strength of composites developed for marine industry

2023

Proceeding Book of 4th International Conference on Engineering and Applied Natural Sciences ICEANS 2023

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“…Moisture FRP materials are extensively used in marine applications such as hulls, masts, funnels, superstructures, air, and fuel storage tanks and propeller shaft [19]. In marine field, moisture absorption is the major parameter behind the degradation of FRP composites.…”

Section: Effect Of Environmental Parameters On Durability Of Marine Smentioning

confidence: 99%

Effect of Marine Environmental Conditions on Physical and Mechanical Properties of Fiber-Reinforced Composites—A Review

Mayya

Pai

Kini

et al. 2021

J. Inst. Eng. India Ser. C

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Fiber-reinforced polymer materials are finding their increasing importance as structural material in marine, civil and aerospace applications. The durability and potential applications of these structures are influenced by the susceptibility to working environments. The ease of prediction of degradation of mechanical property becomes cumbersome due to the heterogeneity of constituent materials and non-standardized weathering conditions. This review article presents a study of long-term performance behavior of composite structures exposed to moisture, temperature, ultraviolet radiation and alkaline solution. Reduction in modulus due to increasing temperature, swelling of polymers due to moisture absorption and scission or alteration of polymer structures are either due to the attack of chemical mediums or ultraviolet rays observed in polymer composites during their service life.

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“…Two rectangular (50×50×2.5 mm) specimens of untreated fiber-reinforced composites (UFRC) and treated fiber-reinforced composites (TFRC) were used to monitor the moisture absorption behavior of the laminates. Moisture concentration of the laminates during the ageing period in regular intervals monitored and expressed by using gravimetric Equation 1 [32,33].…”

Section: Accelerated Ageingmentioning

confidence: 99%

“…The tensile properties of untreated fiber-reinforced composites (UFRC) and treated fiber-reinforced composites (TFRC) were investigated as per ASTM 3039 with a dimension of 250×25×2.5mm [32]. Tests were conducted using 50 kN BiSS make Universal Testing Machine with a crosshead speed of 2mm/min.…”

Section: Tensile Testmentioning

confidence: 99%

An experimental investigation of the effect of natural fiber treatment and marine environment on Cannabis Sativa/epoxy laminates

Chethan

Hegde²,

Kumar

et al. 2021

J Appl Eng Science

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Materials have helped in evolving technology to a great extent. Composites have replaced conventional metals/non-metals because of their lightweight. Natural Fibres have been need of the hour owing to environmental concerns and ease of availability. In this work, Cannabis Sativa fibers were treated with 5% Potassium Hydroxide solution. The laminates were prepared by the Compression Moulding technique by reinforcing treated and untreated fibers with an epoxy matrix material. To access the durability of natural fiber composites in the marine environment, prepared laminates were aged in seawater for 150 days. Tensile, flexural and moisture absorption behavior tests have been performed to estimate the durability in seawater. The data obtained have been compared with pristine treated and untreated fiber reinforced samples. From the results, it has been observed that tensile and flexural behavior of untreated fiber reinforced composites were superior to a treated counterpart in both pristine and aged conditions.

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Influence of marine environment on mechanical properties of glass fiber reinforced composites

Cited by 8 publications

References 8 publications

Examination of the effects of reinforcement type, production method and seawater aging on the impact strength of composites developed for marine industry

Examination of the effects of reinforcement type, production method and seawater aging on the impact strength of composites developed for marine industry

Effect of Marine Environmental Conditions on Physical and Mechanical Properties of Fiber-Reinforced Composites—A Review

An experimental investigation of the effect of natural fiber treatment and marine environment on Cannabis Sativa/epoxy laminates

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