Measurement of the Distribution of Residual Stresses in Layered Thick-Walled GFRP Pipes.

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dc.citation.doi10.1007/s11340-014-9934-7en_ZA
dc.citation.epage1638en_ZA
dc.citation.issue9en_ZA
dc.citation.spage1627en_ZA
dc.contributor.authorCarpenter, H.W.
dc.contributor.authorReid, R.G.
dc.contributor.authorPaskaramoorthy, R.
dc.date.accessioned2016-11-21T12:43:58Z
dc.date.available2016-11-21T12:43:58Z
dc.date.issued2014-11
dc.description.abstractThe objective of this study is to measure the axial, circumferential, shear and radial residual stress distributions in three thick-walled glass fibre reinforced plastic (GFRP) filament-wound pipes, two of which are layered. The measurement of residual stresses was carried out using a recently published layer removal method which overcomes the limitations of previous techniques and can be applied to layered anisotropic pipes of any wall thickness. Layers of approximately 0.3 mm thickness were incrementally ground from the outer surface of the pipes. The resulting strains were measured on the inner surfaces. A least-squares polynomial was fitted to each measured data set, and used to calculate the corresponding stress distributions. All of the resulting axial, hoop and shear stress distributions adhere to the requirement of self-equilibrium and the radial stress distributions all vanish to zero at the inner and outer surfaces. The radial stresses of the layered pipes showed a tendency to have two peaks, one for each layer, a consequence of the two-stage manufacturing process of these pipes. The measured axial and hoop stresses of all three pipes were similar at the inner surfaces despite significant differences in the stiffnesses in the principal directions arising from different wind angles.en_ZA
dc.description.librarianMvdH2016en_ZA
dc.description.sponsorshipDST/NRF Centre of Excellence in Strong Materials (CoE-SM).en_ZA
dc.description.urlhttp://www.springer.com/engineering/mechanics/journal/11340en_ZA
dc.identifier.citationCarpenter, H. W., Reid, R. G. and Paskaramoorthy, R. 2014. Measurement of the Distribution of Residual Stresses in Layered Thick-Walled GFRP Pipes. Experimental Mechanics 54(9), pp. 1627-1638. DOI: 10.1007/s11340-014-9934-7en_ZA
dc.identifier.issn0014-4851
dc.identifier.urihttp://hdl.handle.net/10539/21461
dc.journal.titleExperimental Mechanicsen_ZA
dc.journal.volume54en_ZA
dc.language.isoenen_ZA
dc.publisherSpringeren_ZA
dc.rights© Springer. 2014. Authors may deposit the accepted manuscript of the article in any repository, provided it is only made publicly available 12 months after official publication or later.en_ZA
dc.subjectResidual stressen_ZA
dc.subjectLayer removalen_ZA
dc.subjectFilament windingen_ZA
dc.subjectStress concentrationen_ZA
dc.subjectManufacturing processen_ZA
dc.subjectRadial stress distributionen_ZA
dc.subjectSelf-equilibriumen_ZA
dc.subjectFilament windingen_ZA
dc.titleMeasurement of the Distribution of Residual Stresses in Layered Thick-Walled GFRP Pipes.en_ZA
dc.typePostprint Articleen_ZA
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