Analysis of UOE forming process accounting for Bauschinger effect and welding

UOE forming is commonly used to manufacture offshore and onshore line pipes. The process involves multi-step plastic deformation of High Strength Low Alloy (HSLA) steel plates combined with welding along the seam. The strain path continuously changes during the manufacturing process leading to yield strength variation due to Bauschinger effect. In the present work, the Bauschinger effect in line pipe is analyzed using finite element (FE) method...