Digital radiography using digital detector arrays fulfills critical applications for offshore pipelines

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dc.contributor.authorMoreira, Edson Vasques [UNESP]
dc.contributor.authorRabello, Jose Emauricio Barbosa
dc.contributor.authorPereira, Marcelo dos Santos [UNESP]
dc.contributor.authorLopes, Ricardo Tadeu
dc.contributor.authorZscherpel, Uwe
dc.contributor.institutionNondestruct Testing Lab TenarisConfab
dc.contributor.institutionPetrobras Engn SL SEQUI CI
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.contributor.institutionFed Inst Mat Res & Testing Radiol Methods
dc.date.accessioned2014-05-20T13:28:22Z
dc.date.available2014-05-20T13:28:22Z
dc.date.issued2010-01-01
dc.description.abstractDigital radiography in the inspection of welded pipes to be installed under deep water offshore gas and oil pipelines, like a presalt in Brazil, in the paper has been investigated. The aim is to use digital radiography for nondestructive testing of welds as it is already in use in the medical, aerospace, security, automotive, and petrochemical sectors. Among the current options, the DDA (Digital Detector Array) is considered as one of the best solutions to replace industrial films, as well as to increase the sensitivity to reduce the inspection cycle time. This paper shows the results of this new technique, comparing it to radiography with industrial films systems. In this paper, 20 test specimens of longitudinal welded pipe joints, specially prepared with artificial defects like cracks, lack of fusion, lack of penetration, and porosities and slag inclusions with varying dimensions and in 06 different base metal wall thicknesses, were tested and a comparison of the techniques was made. These experiments verified the purposed rules for parameter definitions and selections to control the required digital radiographic image quality as described in the draft international standard ISO/DIS 10893-7. This draft is first standard establishing the parameters for digital radiography on weld seam of welded steel pipes for pressure purposes to be used on gas and oil pipelines.en
dc.description.affiliationNondestruct Testing Lab TenarisConfab, BR-12414900 Pindamonhangaba, SP, Brazil
dc.description.affiliationPetrobras Engn SL SEQUI CI, BR-12220840 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUNESP, FEG, Dept Mat & Technol, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationUniv Fed Rio de Janeiro, COPPE, Nucl Instrumentat Lab, BR-21945 Rio de Janeiro, Brazil
dc.description.affiliationFed Inst Mat Res & Testing Radiol Methods, BAM, D-12205 Berlin, Germany
dc.description.affiliationUnespUNESP, FEG, Dept Mat & Technol, BR-12516410 Guaratingueta, SP, Brazil
dc.description.sponsorshipXYLON International
dc.description.sponsorshipTenarisConfab
dc.format.extent7
dc.identifierhttp://dx.doi.org/10.1155/2010/894643
dc.identifier.citationEurasip Journal on Advances In Signal Processing. New York: Hindawi Publishing Corporation, p. 7, 2010.
dc.identifier.doi10.1155/2010/894643
dc.identifier.fileWOS000280793000001.pdf
dc.identifier.issn1687-6172
dc.identifier.lattes9386730770147178
dc.identifier.lattes6464565985923561
dc.identifier.urihttp://hdl.handle.net/11449/9435
dc.identifier.wosWOS:000280793000001
dc.language.isoeng
dc.publisherHindawi Publishing Corporation
dc.relation.ispartofEurasip Journal on Advances In Signal Processing
dc.relation.ispartofsjr0,322
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleDigital radiography using digital detector arrays fulfills critical applications for offshore pipelinesen
dc.typeArtigo
dcterms.licensehttp://www.springeropen.com/authors/license
dcterms.rightsHolderHindawi Publishing Corporation
unesp.author.lattes9386730770147178
unesp.author.lattes6464565985923561
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt

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