Collapse of medium-thick-walled pipes with multi-oval defects under external pressure

An Investigation on the Effect of Widespread Internal Corrosion Defects on the Collapse Pressure of Subsea Pipelines

“…The ovality, Δ o , and eccentricity, Ξ o , illustrated in Fig. 1, are related to the diameter and wall thickness according to (Chen et al, 2022;Li et al, 2022;Netto et al, 2007;Sakakibara et al, 2008):…”