Effect of aging on the in-plane and out-of-plane mechanical properties of composites for design of marine structures

Robin, Alban; Arhant, Maël; Davies, Peter; LEJEUNE, S.; Lolive, Éric; Bonnemains, Thomas; Habert, Bertrand

doi:10.1016/j.jcomc.2023.100354

Cited by 3 publications

(1 citation statement)

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“…Asasaari et al [19] revealed a decrease in the mechanical parameters of PCM during moisture saturation. Exposure of CFRP in open climatic conditions according to the data of [20,21] showed that as a result of exposure to temperature, freezing-thawing processes, marine chlorides in the air, aging occurs, accompanied by a change in mechanical properties. According to Shi et al [22] CFRP aging grows under the influence of the ultraviolet component of solar radiation.…”

Section: Introductionmentioning

confidence: 99%

Strength Characteristics of Carbon Fiber Reinforced Plastic in Shear and Cyclic Extension-Compression after 7 Years of Climate Exposure

Petrov

2024

Univers. J. Carbon Res.

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The results of studies of carbon fiber reinforced plastic (CFRP) for aviation purposes based on the Cycom 977-2 epoxy binder and Tenax® IMS carbon fibers after 7 years of exposure under a canopy and on an open atmospheric stand in the warm humid climate of Sochi are presented. The influence of climatic aging is determined by the change in strength parameters during interlaminar shear and cyclic tension – compression. After exposure under a canopy, the strength characteristics during interlaminar shear and cyclic tension–compression increase by 7–13 %. If the plate is under the direct influence of solar radiation, then the strength characteristics of the material are slightly reduced, but remain at the level of the original values. The kinetic concept of fracture was used to interpret the results. The thermal activation analysis showed that the characteristics of the inelasticity of the plate specimens, both in terms of the relaxation and hysteresis parts of energy absorption, correspond to their strength characteristics.

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Section: Introductionmentioning

confidence: 99%

Strength Characteristics of Carbon Fiber Reinforced Plastic in Shear and Cyclic Extension-Compression after 7 Years of Climate Exposure

Petrov

2024

Univers. J. Carbon Res.

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Exploring the impact of void content and hygrothermal aging on the performance of carbon/epoxy composite laminates: a comprehensive study

Baghad,

Mabrouk

2024

Iran Polym J

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Analysis and structural evaluation of seawater-aged composite tidal turbine blades using multi-walled carbon nanotubes and acoustic emission

José-Trujillo,

Rubio-González,

Rodríguez-González

2024

Journal of Reinforced Plastics and Composites

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The main objective of this research was to evaluate the piezoresistive response and mechanical performance of seawater-aged blades manufactured with glass fiber/epoxy resin incorporating multi-walled carbon nanotubes (MWCNTs). MWCNTs content was 0.75 wt. %, which was sufficient to form an electric percolation network. MWCNTs were dispersed in the fiber using the spray-coating method, allowing the entire blade outer surface to gain strain self-sensing capability. Exposure of the blades with and without MWCNT to seawater caused a moisture absorption of 1.67% and 1.56%, respectively. This caused damage such as matrix cracking, and fiber/matrix interfacial debonding. These effects were manifested by an increase in tip displacement of 13% and 1.43% in the blades with and without MWCNTs, also local deformations on the blade increased. The MWCNTs induced a positive effect on piezoresistive capability, resulting in the development of sensitivity to deformation. This showed that MWCNTs in the specified content is efficient for damage detection in complex structural components even after seawater aging while retaining maximum electrical resistance change of 0.45% and 0.26% on the tensile and compressive side, respectively. With acoustic emission (AE), it was confirmed that the presence of MWCNTs acts as toughening mechanisms reducing damage such as micro-cracks in the matrix.

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Effect of aging on the in-plane and out-of-plane mechanical properties of composites for design of marine structures

Cited by 3 publications

References 48 publications

Strength Characteristics of Carbon Fiber Reinforced Plastic in Shear and Cyclic Extension-Compression after 7 Years of Climate Exposure

Strength Characteristics of Carbon Fiber Reinforced Plastic in Shear and Cyclic Extension-Compression after 7 Years of Climate Exposure

Exploring the impact of void content and hygrothermal aging on the performance of carbon/epoxy composite laminates: a comprehensive study

Analysis and structural evaluation of seawater-aged composite tidal turbine blades using multi-walled carbon nanotubes and acoustic emission

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