Proceedings of 41st Danubia-Adria Symposium Advances in Experimental Mechanics (pp. 65-66)
AUTOR(I) / AUTHOR(S): Milan Blagojević 
, Živče Šarkočević , Ivica Čamagić
DOI: 10.46793/41DAS2025.065B
UVOD / INTRODUCTION:
During the operational use of fibre-reinforced composite components, structural defects such as cracks, delamination, or fibre breakage may develop due to mechanical overload, cyclic fatigue, environmental degradation, or manufacturing imperfections. These defects can compromise the integrity of the load-bearing structure, resulting in a reduction of stiffness, strength, and overall performance. The propagation of such damage under service conditions not only shortens the component’s lifespan but also increases the risk of sudden failure, which can have severe safety and economic consequences. Understanding the underlying causes and mechanisms of crack formation is therefore essential for implementing effective preventive measures and improving the durability of composite structures.
“Burn-off” and resin removal techniques are widely applied in composite characterization to evaluate fibre–matrix ratios and detect potential structural inconsistencies. The results provide insight into material uniformity and support the evaluation of possible links between fibre content and the occurrence of structural defects. In this study, the mass fraction of glass fibres in a composite door panel was determined to assess whether material composition differences exist in defect-prone zones compared to unaffected areas.
KLJUČNE REČI / KEYWORDS:
PROJEKAT / ACKNOWLEDGEMENT:
The part of this research is funded by Ministry of Science, Technological Development and Innovation of the Republic of Serbia, Contract no. 451- 03-65/2024-03/200155.
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