Acoustic emission monitoring of damage mechanisms an aramid-epoxy composite after tensile fatigue and aging seawater

Menail, Younès; Mahi, Abderrahim El; Assarar, Mustapha; Redjel, Bachir

doi:10.5755/j01.mech.22.1.12176

Cited by 11 publications

(10 citation statements)

References 2 publications

(2 reference statements)

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“…While the works on molecular mechanisms and kinetics by Horta et al are of special fundamental importance for modelling environmental degradation of aramid fibres, there are also other noteworthy publications. Chronologically, these include works by Shubha et al (1993) [ 166 ], Connor et al (1996) [ 167 ], Perry (1997) [ 168 ], Jain et al (2000) [ 169 ], Lin et al (2001) [ 170 ], Tanaka et al (2002) [ 171 ], Menail et al (2009) [ 172 ], Ramesh et al (2013) [ 173 ], Menail et al (2016) [ 174 ], Srivastav et al (2017) [ 175 ], Engelbrecht-Wiggans et al (2020) [ 176 ], Oğuz et al (2021) [ 177 ], and Starkova et al (2021) [ 66 ].…”

Section: Ageing and Degradation Modelling Of Composite Microconstituentsmentioning

confidence: 99%

Modelling of Environmental Ageing of Polymers and Polymer Composites—Modular and Multiscale Methods

et al. 2022

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Service lifetimes of polymers and polymer composites are impacted by environmental ageing. The validation of new composites and their environmental durability involves costly testing programs, thus calling for more affordable and safe alternatives, and modelling is seen as such an alternative. The state-of-the-art models are systematized in this work. The review offers a comprehensive overview of the modular and multiscale modelling approaches. These approaches provide means to predict the environmental ageing and degradation of polymers and polymer composites. Furthermore, the systematization of methods and models presented herein leads to a deeper and reliable understanding of the physical and chemical principles of environmental ageing. As a result, it provides better confidence in the modelling methods for predicting the environmental durability of polymeric materials and fibre-reinforced composites.

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Section: Ageing and Degradation Modelling Of Composite Microconstituentsmentioning

confidence: 99%

Modelling of Environmental Ageing of Polymers and Polymer Composites—Modular and Multiscale Methods

et al. 2022

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“…It thus remains essential to know as a preliminary the kinetics of absorption which govern the kinetics of degradation in these materials to be able to include/ understand and envisage their behavior. The presence of water involves reversible and irreversible structural degradations [7,47,48].…”

Section: Wöhler Curvesmentioning

confidence: 99%

“…This concept of the degradation rate per decade of cycles has been raised and reported by many authors based on randomly oriented short fiber reinforced composite materials. They estimate it in general at 10% [44][45][46][47][48][49][50]. However, no explanation has been advanced to characterize this constant value.…”

Section: Normalized Wöhler Curvesmentioning

confidence: 99%

Fatigue resistance of randomly oriented short glass fiber reinforced polyester composite materials immersed in seawater environment

Djeghader

Redjel

2017

Mechanics & Industry

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Randomly oriented short fiber mat reinforced polyester composite laminates immersed in natural seawater for various periods were tested in static and cyclic fatigue loading under three-point bending conditions. Water absorption increased the weight of the specimen while the extraction of soluble compounds induces a weak weight loss. Wöhler curves carried out from repetitive fatigue tests were drawn for the different periods of immersion time. These curves, which are characterized by an important and a significant scatter in their lifetime, were modeled by straight lines. These glass-polyester laminates deteriorate in fatigue tests at a constant rate by cycle decade. This rate increases with increasing immersion time in seawater at a constant speed. A comparison between different mathematical models of endurance curves shows that Wöhler's equation gives a good representation of the average part of the curve.

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“…Menail et al 25 studied the mechanical properties of nonhybrid glass and kevlar‐fiber epoxy composite materials immersed in tap water. The test results displayed that the specimens immersed in the hydrothermal condition were more fragile than nonaged specimens.…”

Section: Introductionmentioning

confidence: 99%

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

Oğuz¹,

Erkliğ

2022

Polymer Composites

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Acoustic emission monitoring of damage mechanisms an aramid-epoxy composite after tensile fatigue and aging seawater

Cited by 11 publications

References 2 publications

Modelling of Environmental Ageing of Polymers and Polymer Composites—Modular and Multiscale Methods

Modelling of Environmental Ageing of Polymers and Polymer Composites—Modular and Multiscale Methods

Fatigue resistance of randomly oriented short glass fiber reinforced polyester composite materials immersed in seawater environment

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

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