A new study conducted by researchers at Monash University and RMIT University has identified moisture absorption as the primary factor driving the ageing of carbon‑fiber composite materials used in aircraft structures. The findings provide important insights for both design and maintenance strategies in aviation.
The research shows that long‑term exposure to moisture can significantly affect the mechanical properties of composite materials, potentially more than temperature effects previously considered dominant. This process can gradually alter stiffness and strength, with direct implications for aircraft maintenance schedules and structural lifespan predictions.
As modern aircraft increasingly rely on CFRP structures to reduce weight and improve fuel efficiency, understanding how these materials degrade over time is essential for the aerospace industry.
According to the researchers, the findings could help engineers develop more accurate lifetime prediction models and design composite materials better suited to harsh operating environments.
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28 April 2026
