| Abstract Scope |
In the marine industry, the need for structures that are highly resilient to environmental impacts and exhibit excellent structural integrity increase at a significant rate. This study presents a feasibility analysis of the impact of debonding defect in the proposed multilayered material, where carbon-fiber-reinforced polymer is coated to structural steel, with potential applications in marine structure. Debonding size covering the smallest to the largest debonding area were investigated. Both nondestructive testing and numerical simulation was employed to assess the influence of debonding. Frequency response function analysis was utilized to extract the frequency components, with the first four natural frequencies providing insights into stiffness degradation due to debonding. The results revealed that the reduction in natural frequencies was primarily due to stiffness degradation than mass redistribution or stress variation. The analysis also shows, CFRP has a considerable benefit for the overall performance and applicability in improving structural integrity of traditional steel. |