Sunday 6 July 2008
EVALUATION OF MATERIAL RESPONSE SUBJECTED TO HIGH PLASTIC DEFORMATION WHEN FORGED INTO SAIPEM SUBMARINE REPAIRING SYSTEM
G. Mannucci (CSM); G. Brandi (SAIPEN); G.SPINELLI (ENI)
Referee: T. Coppola
Paper presented to ISOPE 2008; Vancouver, 6-11 luglio 2008
ABSTRACT
An innovative pipeline repair system for deepwater applications has been recently developed by Saipem. Sealing is ensured by a forging process which plastically deforms the linepipe material at very high strain level. In order to evaluate the material response to high plastic deformation when forged into the system, a devoted testing programme has been performed coupled with FEM calculations so to assess the material response during the plastic straining process and in the after straining plus ageing conditions.
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