Evaluation of the hydrothermal aging effect on the buckling behavior of hybrid glass/aramid/epoxy composite plates: Comparison of distilled water and seawater

Oğuz, Zeynal Abidin; Erkliğ, Ahmet

doi:10.1002/pc.26705

Cited by 14 publications

(18 citation statements)

References 43 publications

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“…34 Therefore, the temperature is one of the parameters of the water absorption character in this study. Regarding the effect of temperature on water character, it was previously stated in our investigations 28,29,63 that water intake is drastically changed at high temperatures owing to moistureinduced considerable deterioration. The maximum mass change ratio of composites is shown in Figure 7.…”

Section: Hydrothermal Aging Resultsmentioning

confidence: 67%

“…The leading causes of rapid water penetration can be attributed to micro-defects, micro-voids, and fiber and matrix. 28,29,36,63 However, rapid water absorption slowed down after a specific time (1000 t 0.5 second aging period).…”

Section: Resultsmentioning

confidence: 99%

“…The greater water absorption of the composite samples at 70°C can be explained by the increased segmental motion of the polymeric chain at higher temperatures. 37,63 Moreover, the increase in plasticization at high temperature compared to room temperature, further deterioration of the fiber-matrix interface, causing the formation of more micro-voids in the composite structure, also causes more water absorption. 37,38

Figure 7.Maximum mass change ratio of all composite groups.…”

Section: Resultsmentioning

confidence: 99%

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Hydrothermal aging effect on the tensile properties of hybrid aramid/glass/epoxy composites: Comparison of distilled water and seawater

Oğuz

Erkliğ

2022

Journal of Composite Materials

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This paper evaluated the effect of water adsorption on the tensile characteristics of hybrid aramid/glass/epoxy composites. The composite samples ([G6]S, [A6]S, [G3A3]S, [A3G3]S immersed in hydrothermal aging conditions (distilled water at 25°C, distilled water at 70°C, seawater at 25°C, seawater at 70°C) for 1000 h. The kinetic diffusion parameters of hybrid and plain specimens were evaluated experimentally and theoretically. Further, the effects of the stacking sequence of fabrics, seawater/distilled water aging, and temperature on the tensile behavior of dry, wet, and re-dried specimens were systematically discussed. At the end of the test, SEM images were obtained from the surfaces of the broken samples. Water gain plots for various conditions displayed that the samples absorbed more water when the aramid fabrics were on the outer surface of the hybrid composites. The hydrothermal aging significantly decreased the tensile strength of hybrid aramid/glass/epoxy and plain glass/epoxy composites. The tensile strength decrease rate of samples immersed in distilled water was higher than in seawater. Besides, the re-drying process induced more tensile strength degradation for both water types. SEM results showed that delaminations increased with aging and increasing temperature.

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Section: Hydrothermal Aging Resultsmentioning

confidence: 67%

Section: Resultsmentioning

confidence: 99%

Figure 7.Maximum mass change ratio of all composite groups.…”

Section: Resultsmentioning

confidence: 99%

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Hydrothermal aging effect on the tensile properties of hybrid aramid/glass/epoxy composites: Comparison of distilled water and seawater

Oğuz

Erkliğ

2022

Journal of Composite Materials

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“…Because of their outstanding mechanical, thermal, and electrical qualities, polymer‐based composite materials have become increasingly popular in engineering applications such as aircraft, naval, and automobiles in recent decades. [ 1–4 ] Today's modern technological structures commonly use fiber reinforced composites. Fiber reinforced composite laminates, in particular, are widely employed in thin‐walled form in key aircraft components such as the fuselage, wing, tail, and propeller.…”

Section: Introductionmentioning

confidence: 99%

Assessment of nanoclay impact on buckling response of carbon/Kevlar hybrid composites

et al. 2023

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This study investigates the effects of nanoclay (NC) particles on the buckling behavior of carbon/Kevlar intraply hybrid composites. The laminates containing various amounts of NC particles (0.5%, 1%, 1.5%, 2%, and 3% by weight) were manufactured using hand layup stacking followed by vacuum bag molding process. The prepared samples were subjected to axial and lateral compressive loads under fixed-fixed and fixed-free boundary conditions, respectively, and the relevant critical buckling loads were determined. Furthermore, the failure modes were examined via microscopic views taken from the damaged areas on the samples to fully understand the influences of NC particles on buckling characteristics. The findings demonstrated that the buckling behaviors of the samples were significantly affected by the introduction of NC particles. Compared with the composite samples without any NC particles, the composite samples with 1 wt% NC particles showed an increase of 21.12% and 25.33% in the axial and lateral critical buckling loads, respectively. However, the inclusion of NC particles with an amount that higher than 1 wt% showed a decreasing trend in terms of critical loads for both buckling loadings, which can be viewed as a measure of load-bearing capability. Moreover, the samples filled with 3 wt% NC particles exhibited a decrement on critical loads compared with those of samples without any NC particle filler. With the help of microscopic views, the failure modes were detected as matrix fragmentation and delamination for both buckling loadings.

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“…Determining the durability of composite materials when exposed to water/moisture or after being kept in different environments is extremely important in terms of learning the mechanical properties of the materials. 4,5 Because polymerbased materials show a different character from their dry state when exposed to an aging environment in the short or long term due to the hydrophilic nature of fibers. 6 From a broad perspective, vibration methodologies are designed to investigate a structure's dynamic response by utilizing its primary natural mode of vibration.…”

Section: Introductionmentioning

confidence: 99%

An experimental study on the hydrothermal aging effect on the free vibration properties of hybrid aramid/glass/epoxy composites: Comparison of sea water and distilled water

Doğan,

Oğuz,

Erkliğ

2023

Polymer Composites

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The purpose of this experimental work is to investigate the impact of hydrothermal aging on the viscoelastic characteristics of hybrid aramid/glass/epoxy composites. In addition to the hybrid composites prepared by vacuum infusion method in two different hybrid configurations ([G3A3]S, [A3G3]S) and two non‐hybrid composite groups ([G6]S, [A6]S) were included for comparison purposes. Composite samples were kept in 4 different aging environments (distilled water 25°C, distilled water 70°C, seawater 25°C, and seawater 70°C) for 6 weeks. To assess the dynamic properties (natural frequency and damping ratio) of composites, a free vibration test was conducted. The vibration test results of the samples were calculated by the half‐power bandwidth method. The results revealed that hydrothermal aging did not have serious effects on first‐mode natural frequency. It was observed that the damping ratios of hybrid composites increased after hydrothermal aging when compared with unaged samples. The results from dynamic aspects like the storage modulus and loss modulus were consistent among themselves. The parameters of the storage modulus and loss modulus have both decreased as a result of hydrothermal aging. In addition, the results proved that the rise in temperature accelerated the degradation in mechanically deteriorated composite materials. It was also found that aging in seawater was induced to more deterioration of hybrid and non‐hybrid composite materials.Highlights The order of the fabrics play an important role in free vibration properties of hybrid composites. Aging hybrid composites at different temperatures affects their free vibration properties. and values decreased more as the temperature increased. Hydrothermal aging has increased the dumping ratio values of composite materials.

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Evaluation of the hydrothermal aging effect on the buckling behavior of hybrid glass/aramid/epoxy composite plates: Comparison of distilled water and seawater

Abstract: This study aims to investigate the hydrothermal effect on the buckling behavior of glass/aramid/epoxy hybrid composites under distilled and seawater environments. The four types of composite groups ([G

Cited by 14 publications

References 43 publications

Hydrothermal aging effect on the tensile properties of hybrid aramid/glass/epoxy composites: Comparison of distilled water and seawater

Hydrothermal aging effect on the tensile properties of hybrid aramid/glass/epoxy composites: Comparison of distilled water and seawater

Assessment of nanoclay impact on buckling response of carbon/Kevlar hybrid composites

An experimental study on the hydrothermal aging effect on the free vibration properties of hybrid aramid/glass/epoxy composites: Comparison of sea water and distilled water

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