Published: Jan. 1, 2024

This study addresses pipeline failure, a critical issue primarily attributed to corrosion, with far-reaching consequences in social, economic, and environmental domains. Traditional assessment methods, while simple fast, often yield conservative results. Existing approaches typically overlook inherent uncertainties failure pressure prediction, emphasizing safety factors. research focuses on the probability of complex corrosion profiles characterized by river-bottom (RBPs), aiming bridge gap literature. The employs traditional Monte Carlo (MC) an proposed modified first-order reliability method (FORM) assess intricate defects, utilizing Effective Area within function. To manage computational demands, FORM is favored for its efficiency requiring fewer evaluations. Despite challenges gradient computation using Level-2 methods like Area, novel procedure efficiently accurately determining FP gradients algorithm. Results show that converges 15 iterations all 11 cases, presenting rapid precise alternative Level-1 methods. approach offers valuable contribution computing as demonstrated this comparative purposes.

Language: Английский