Artículos de revistas
Influence of multiple sleeve repairs on the structural integrity of gas pipelines
Otegui, Luis Jose; Cisilino, Adrian Pablo; Rivas, Andres Eduardo; Chapetti, Mirco Daniel; Soula, G.; Influence of multiple sleeve repairs on the structural integrity of gas pipelines; Elsevier; International Journal of Pressure Vessels and Piping; 79; 11; 11-2002; 759-765
Otegui, Luis Jose
Cisilino, Adrian Pablo
Rivas, Andres Eduardo
Chapetti, Mirco Daniel
This paper addresses the structural integrity of gas pipelines with multiple full-encirclement weld repairs. The scope of the work is to identify and quantify the effects of the number and type of repairs, the distance between them, and the pressurization of the pipe to sleeve gap on the mechanical behaviour of the component. The study includes full-scale experimental testing and finite element modelling. Burst tests were carried out in tracts of pipelines removed from service, including various geometric configurations with and without circumferential girth welds. It is concluded that the reliability of the repairs is strongly influenced by the construction procedures and that interaction effects between successive repairs are not appreciable if the repairs are more than a half pipe diameter apart. © 2002 Elsevier Science Ltd. All rights reserved.