Damaged Pipeline repairs by GRINDING

Abstract

These cracks are responsible for the majority of failures that occur in structures and machine parts in service, subjected to static or dynamic forces. The presence of a crack in a pressurized pipeline requires, for obvious safety reasons, a precise knowledge of its degree of harmfulness. The gas transport pipeline containing a longitudinal crack (mode I of the rupture) is solicited with an internal pressure. The numerical modeling of a cracked medium by the commercial code ANSYS allows on the one hand to characterize the singularity of the stress field at the crack front. Crack repair with grinding has confirmed its effectiveness in reducing the stress intensity at the crack points