Per: Victor Barbosa de Souza (uenf), Heitor Braga Ferreira (redentor), Rômulo Simiquel Lobato (redentor), Niander Aguiar Cerqueira (redentor), Amanda Camerini Lima (redentor), Afonso Rangel Garcez de Azevedo (uenf), Markssuel Teixeira Marvila (uenf), Sergio Neves Monteiro (ime), Thais Pirovane Miguel (uenf)
Abstract:
The present work deals with the presentation and comparison of two methods of dimensioning the thickness of a composite material glove for repairing a pipe, from the off-shore industry, which presents external corrosion and significant loss of thickness. The first sizing method is guided according to ISO / PDTS 24817 (Repairs of composites for pipelines in the oil, petrochemical and natural gas industries - Qualification, design, installation, testing and inspection) which basically summarizes in the calculation of the repair thickness and the axial length of the repair respectively. The other sizing method is the thin wall theory that determines the thickness of the repair taking into account the allowable stress and the contact pressure between the pipe and the composite. The results show a considerable difference in the values obtained by the two methods, with the thin wall theory having obtained a dimensioning result of the repair thickness 136.33% greater than the value obtained by the dimensioning carried out by ISO, which can be considered insufficient for the defect corrected, which would lead to a possible leak that could cause damage.