Failure modes in GFRP composites assessed with the aid of SEM fractographs

Beura, S.; Chakraverty, A.P.; Thatoi, Dhirendra Nath; Mohanty, U. K.; Mohapatra, Meryleen

doi:10.1016/j.matpr.2020.08.518

Cited by 9 publications

(8 citation statements)

References 15 publications

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“…Carbon and glass Fiber pullout, crushed fibers, fiber and matrix debris, buckling failure, longitudinal splitting [76] Epoxy adhesive Carbon Fiber pull-out matrix debonding [79] Epoxy Carbon Fiber fracture, fiber pull-out [81] Glass Polyester Fiber pullout, fiber breakage, matrix fracture, fiber fracture, matrix peeling, matrix crack, matrix pores [83] Epoxy Glass Fiber pull-out [84] Polyester (orthophthalic) Chopped E-glass fiber Interface cracks, matrix cracks, fiber cavities [85] Polyester E-glass Fiber pullout, fiber-matrix interface failure [86] as the crack approaches the neutral axis and enters a field of decreasing compressive stress and increasing interlaminar shear stress. Beura et al 88 investigated the failure analysis of GFRP composite based on several SEM fractographs. In this study, the author created specimens using an 18-layer epoxy resin GFRP hand-layout process.…”

Section: Epoxymentioning

confidence: 99%

“…The fractured samples in this investigation were seen graphically by SEM at 150Â and 750Â magnifications which shows the point of weakness, the type of breaking, and the interaction F I G U R E 4 SEM micrograph of fractured flexural specimen (a-f). 88 T A B L E 3 Summary of SEM fractography of flexural fracture of FRP composites.…”

Section: Impact Failurementioning

confidence: 99%

“…Hydrothermal-fiber breakage, fiber pullout, cusps(crazing), fibermatrix debonding, fiber imprint. Sea water and low/high intensified gamma radiation-fiber pullout, matrix cracking, fiber breakage, fiber imprint, fiber-matrix debonding, cusps(crazing) [88] Epoxy E-glass and carbon Matrix crack, river hackles, debonding, matrix crack, cusps, fiber imprint, delamination [90] between the fibers and matrix. Jesthi and Nayak 93 provide the fractography analysis of carbon and glassreinforced epoxy hybrid laminate composites.…”

Section: Epoxy Carbonmentioning

confidence: 99%

See 2 more Smart Citations

Fractographic analysis of fiber‐reinforced polymer laminate composites for marine applications: A comprehensive review

Ojha,

Bisaria,

Mohanty

et al. 2024

Polymer Composites

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In the past decade, polymer‐based glass fiber‐reinforced laminate composites have gained significant popularity in various mass transit applications, including marine, aircraft, and automotive industries. However, it is crucial to consider the degradation and potential failure of these materials, especially in mass transit networks. To address this concern, fractographic analysis has emerged as a valuable approach for investigating fracture surfaces, extracting vital information, and facilitating the development of new materials. Furthermore, it sheds light on the underlying physical mechanisms that contribute to composite failure. This paper primarily focuses on examining flaws, failure modes, and performing fractography analysis on fiber‐reinforced polymer (FRP) laminate composites subjected to various loading conditions such as tension, compression, flexure, impact, shear, and fracture. Fractography, as an indispensable method, plays a pivotal role in the comprehensive development of composite structures and has become a reliable tool for composite engineers. The outcomes of this study are expected to serve as a foundation for identifying areas that require further investigation in terms of fracture analysis and failure modes specific to FRP composite materials, particularly those used in marine applications.Highlights Introduction to FRP laminate composites in marine structures. Concise analysis of failure modes in FRP laminate composites. SEM fractography review of FRP laminate composites under varied loading conditions. Comprehensive study on tensile, flexural, impact, compression, shear, and fracture toughness failure modes. Summarization of identified defects in FRP composites.

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Section: Epoxymentioning

confidence: 99%

Section: Impact Failurementioning

confidence: 99%

Section: Epoxy Carbonmentioning

confidence: 99%

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Fractographic analysis of fiber‐reinforced polymer laminate composites for marine applications: A comprehensive review

Ojha,

Bisaria,

Mohanty

et al. 2024

Polymer Composites

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“…Due to these advantages, GFRPs are one of the most widely utilized composite materials across all the fields of engineering, e.g., the manufacturing of airship fuselage and wing parts, ship hulls, auto body parts, printed circuit boards, pressure tanks, concrete reinforcement bars, and blades of wind turbines. Despite their numerous advantages, successfully using GFRPs also poses a challenge, due to the increased number of failure modes of composite materials [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Damage Detection in Glass Fibre Composites Using Cointegrated Hyperspectral Images

Długosz,

Dao,

Staszewski

et al. 2024

Sensors

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Hyperspectral imaging (HSI) is a remote sensing technique that has been successfully applied for the task of damage detection in glass fibre-reinforced plastic (GFRP) materials. Similarly to other vision-based detection methods, one of the drawbacks of HSI is its susceptibility to the lighting conditions during the imaging, which is a serious issue for gathering hyperspectral data in real-life scenarios. In this study, a data conditioning procedure is proposed for improving the results of damage detection with various classifiers. The developed procedure is based on the concept of signal stationarity and cointegration analysis, and achieves its goal by performing the detection and removal of the non-stationary trends in hyperspectral images caused by imperfect lighting. To evaluate the effectiveness of the proposed method, two damage detection tests have been performed on a damaged GFRP specimen: one using the proposed method, and one using an established damage detection workflow, based on the works of other authors. Application of the proposed procedure in the processing of a hyperspectral image of a damaged GFRP specimen resulted in significantly improved accuracy, sensitivity, and F-score, independently of the type of classifier used.

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“…They stated that there were decreases in Young's modulus and tensile strength and were affected by the hydrothermal environment. Beura et al [24] kept glass fiber reinforced epoxy composite specimens in distilled water and seawater. They stated that hydrothermal aging causes degradation in the material and a longer aging process causes further deterioration of the composite structure.…”

Section: Introductionmentioning

confidence: 99%

Farklı Fiber Dizilimlerine Sahip Kompozit Levhalar Üzerinde Nem ve Sıcaklık Etkisi

ÖRÇEN

Koyun²

2021

Mühendis Ve Makina

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In this study, the effect of humidity and temperature on glass fiber reinforced epoxy composite plates with different fiber reinforcement angles and different widths were experimentally investigated. For this purpose, composite plates with fiber reinforcement angles of [0°]8 and [45°/-45°/0°/90°]s were prepared in 25 mm and 30 mm dimensions and kept in hot water at 40 °C, 60 °C and 80 °C for 15, 30 and 45 days. At the end of the duration, the moisture absorption rates and strengths of the specimens were obtained. The obtained data were compared among themselves and with that of dry specimens. In addition, the morphologies of the specimens were visualized with the help of Scanning Electron Microscope (SEM) and the effects of humidity and temperature on failure behavior were examined. It was determined that the strength of the [45°/-45°/0°/90°]s fiber orientations specimens was lower than the strength values obtained from the [0°]8 fiber orientations specimens. It has been determined that when the waiting time and temperature increase, the matrix/fiber structure of the specimens deteriorates and the strength values decrease accordingly.

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Failure modes in GFRP composites assessed with the aid of SEM fractographs

Cited by 9 publications

References 15 publications

Fractographic analysis of fiber‐reinforced polymer laminate composites for marine applications: A comprehensive review

Fractographic analysis of fiber‐reinforced polymer laminate composites for marine applications: A comprehensive review

Damage Detection in Glass Fibre Composites Using Cointegrated Hyperspectral Images

Farklı Fiber Dizilimlerine Sahip Kompozit Levhalar Üzerinde Nem ve Sıcaklık Etkisi

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