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ABSTRACT
This research aims to investigate the residual strength of dented offshore pipelines that experience crack formations, resulting in leakages and subsequently reduced operating pressures. The occurrence of dents and cracks in offshore pipelines is a pressing concern that adversely affects the performance and integrity of these critical structures. Understanding the residual strength characteristics of dented pipelines with cracks is vital for ensuring their safe and reliable operation. The research methodology involves a comprehensive analysis of the mechanical response of dented pipelines under various loading conditions. Finite element analysis (FEA) techniques will be employed to model and simulate the behavior of dented pipelines with different crack geometries and defect severity levels. The research will also focus on the development of reliable prediction models for estimating the residual strength of dented pipelines with cracks. These models will incorporate crucial parameters such as dent depth, crack length, geometry, and pipeline material properties. By utilizing extensive numerical simulations and experimental data, the proposed models will provide accurate predictions of the critical burst pressure and remaining fatigue life of damaged pipelines.
