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1 April 2019 Infrared thermography application for analyzes of internal structure damage due to moisture and temperature influence
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Advanced composite materials have gained popularity in high-performance structural designs applications (like aircraft, yachts, wind turbine blades) that require lightweight components with superior mechanical properties in order to perform in demanding service conditions as well as provide energy efficiency and safety to mankind and nature. Due to high safety requirements related to the objects structural health monitoring systems based on fiber optics techniques are recently widely applied. One of the problems that can influence on material durability is moisture introduced into element structure during its manufacturing or exploitation processes. Moisture changes material characteristics, affect element durability and can be a damage origin especially during exposure on negative temperature influence (resulting in burst or ripping of an element). One of the non-destructive techniques that can be applied for evaluation of the internal structure of composite materials (like glass and/ or carbon fiber reinforced polymers) is infrared thermography (pulse and/ or vibrothermography). The methods can be used for identification of material structural disintegration that results in changes in the behavior of temperature field changes. The paper presents an application of infrared thermography (vibrothermography) for inspection of composite (glass fiber reinforced polymers) sample internal structure. The method will be used for detection, localization, and determination of the size of internal damage due to the influence of moisture introduced into material structure and exposure on negative temperature influence. During analysis, the limitations of the proposed method will be determined.
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Katarzyna Majewska, Magdalena Mieloszyk, and Wieslaw Ostachowicz "Infrared thermography application for analyzes of internal structure damage due to moisture and temperature influence ", Proc. SPIE 10972, Health Monitoring of Structural and Biological Systems XIII, 1097210 (1 April 2019);

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