Time-variant burst strength of pipe with corrosion defects considering mechano-electrochemical interaction

This study aims at assessing the time-variant burst strength of pipe with corrosion defects under high internal pressure. A new numerical model was developed, where the mechano-electrochemical interaction was considered in a simplified manner. The damage evolution of corrosion, which was governed by a stress corrosion model, was realized by a user defined UMESHMOTION subroutine. The time-variant corrosion morphology and burst strength can be...