Factors affecting the ageing of polymer composite: A state of art

Polymer Degradation and Stability, Journal Year: 2024, Volume and Issue: 221, P. 110670 - 110670

Published: Jan. 20, 2024

Language: Английский

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Using machine learning and experimental study to correlate and predict accelerated aging with natural aging of GFRP composites in hygrothermal conditions

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 438, P. 137264 - 137264

Published: June 29, 2024

Language: Английский

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Predicting natural aging effects on fatigue life of CFRP–aluminum adhesive joints using machine learning and accelerated aging data

Journal of Adhesion Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 22

Published: Feb. 3, 2025

Language: Английский

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The Aging of Polymers under Electromagnetic Radiation

Polymers, Journal Year: 2024, Volume and Issue: 16(5), P. 689 - 689

Published: March 3, 2024

Polymeric materials degrade as they react with environmental conditions such temperature, light, and humidity. Electromagnetic radiation from the Sun’s ultraviolet rays weakens mechanical properties of polymers, causing them to degrade. This study examined phenomenon polymer aging due exposure radiation. The three specific objectives, including key theories explaining (UV) radiation’s impact on decomposition, underlying testing procedures for determining polymeric materials, appraising current technical methods enhancing UV resistance polymers. utilized a literature review methodology understand effect electromagnetic Thus, concluded that using additives absorbers polymers composites can elongate lifespan by shielding effects findings suggest thermal contribute degradation breaking down their physical chemical bonds. Thermal oxidative environments accelerate presence temperatures foster quicker plastics.

Language: Английский

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Machine Learning-Based Strength Prediction of Nano-Reinforced Adhesive and Hybrid Joints Under Hygrothermal Conditions

Materials Today Communications, Journal Year: 2024, Volume and Issue: unknown, P. 111046 - 111046

Published: Nov. 1, 2024

Language: Английский

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Mechanical behavior of the polyamide 6.6 nanofiber and MWCNT‐reinforced hybrid nanocomposites

Polymer Composites, Journal Year: 2024, Volume and Issue: 45(5), P. 4693 - 4708

Published: Jan. 5, 2024

Abstract The present study examines the influence of polyamide 6.6 (PA 6.6) nanofiber and MWCNTs reinforcements on mechanical behavior nanocomposite plates formed by hybridization carbon fabric (CF) kevlar (KF). First, PA nanofibers were manufactured electrospinning. produced placed in interlaminar plates. MWCNT‐reinforced consisting 12 layers vacuum bagging method. Tensile, Mode‐II fracture bending tests applied to composite accordance with standards. After tests, plates' macro micro damage analysis was performed. As a result reinforcement 6.6, 6.6‐MWCNTs, tensile strength, toughness strength significantly enhanced compared unreinforced samples. In addition, crack propagation reinforced samples became more stable than sample. Highlights Investigated impact MWCNT through CF KF hybridization. Reinforcement MWCNTs, 6.6‐MWCNTs improved toughness, strength. demonstrated stability reinforcements.

Language: Английский

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T700 Carbon Fiber/Epoxy Resin Composite Material Hygrothermal Aging Model

Materials, Journal Year: 2025, Volume and Issue: 18(2), P. 369 - 369

Published: Jan. 15, 2025

The hygrothermal aging model, based on Fick’s second law of diffusion, characterizes the degradation engineering constants in T700 carbon fiber/epoxy resin composites. It focuses changes tensile modulus, shear and transverse Poisson’s ratio due to moisture absorption temperature variations. model validates through mass change observations before after seawater immersion, along with surface morphology assessments experiments. results reveal that saturated rate for single-layer laminates immersion is 0.35%. Short-term at room (≤60 days) does not induce cracks or defects (≥10 μm) composite’s surface. modulus decreases as increases, longitudinal dropping by an order 10−5%, while other decrease 10−3%. also rising temperature; closer matrix’s glass transition, faster declines, decreasing 0.84%, 100%. This research provides valuable insights applications composite materials marine environments.

Language: Английский

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Advances in developing cost-effective carbon fibers by coupling multiscale modeling and experiments: A critical review

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 146, P. 101329 - 101329

Published: June 13, 2024

Language: Английский

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Impact response of hybrid composites under varying environmental conditions: A comparative study

Polymer Composites, Journal Year: 2024, Volume and Issue: unknown

Published: June 10, 2024

Abstract Composite materials are widely preferred in the aviation, automotive, construction and maritime industries due to their many superior properties. As a result of this widespread use, composite structures inevitably subjected various environmental conditions. Various conditions may negatively affect mechanical performance structure, structure become unable maintain its initial properties, especially face critical loading, such as low‐velocity impacts. This research investigated influence on impact strength materials. 12‐layer plate samples with epoxy matrix reinforced woven glass fabric (GF), carbon (CF), hybrid (HF), where two fabrics used together, were produced. Low‐velocity tests conducted these specimens at 20 40 J energy levels. Damages occurring material test interpreted using high‐resolution camera optical microscope images. Force‐time force‐ displacement curves drawn interpreted. It was concluded that values increased, maximum force also increased. Highlights The which be exposed dynamic response has been investigated. significantly affected structure's behavior. While (GF) more by seawater environment, (CF) HCl environment. Hybrid (HF) approximately equal amounts.

Language: Английский

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Investigating the role of fibre-matrix interfacial degradation on the ageing process of carbon fibre-reinforced polymer under hydrothermal conditions

Composites Science and Technology, Journal Year: 2024, Volume and Issue: unknown, P. 110922 - 110922

Published: Oct. 1, 2024

Language: Английский

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