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

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dc.contributor.author Carpenter, H.W.
dc.contributor.author Reid, R.G.
dc.contributor.author Paskaramoorthy, R.
dc.date.accessioned 2016-11-21T12:43:58Z
dc.date.available 2016-11-21T12:43:58Z
dc.date.issued 2014-11
dc.identifier.citation Carpenter, 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/s11340-014-9934-7 en_ZA
dc.identifier.issn 0014-4851
dc.identifier.uri http://hdl.handle.net/10539/21461
dc.description.abstract The 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.sponsorship DST/NRF Centre of Excellence in Strong Materials (CoE-SM). en_ZA
dc.language.iso en en_ZA
dc.publisher Springer en_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.subject Residual stress en_ZA
dc.subject Layer removal en_ZA
dc.subject Filament winding en_ZA
dc.subject Stress concentration en_ZA
dc.subject Manufacturing process en_ZA
dc.subject Radial stress distribution en_ZA
dc.subject Self-equilibrium en_ZA
dc.subject Filament winding en_ZA
dc.title Measurement of the Distribution of Residual Stresses in Layered Thick-Walled GFRP Pipes. en_ZA
dc.type Postprint Article en_ZA
dc.journal.volume 54 en_ZA
dc.journal.title Experimental Mechanics en_ZA
dc.description.librarian MvdH2016 en_ZA
dc.citation.doi 10.1007/s11340-014-9934-7 en_ZA
dc.citation.epage 1638 en_ZA
dc.citation.issue 9 en_ZA
dc.description.url http://www.springer.com/engineering/mechanics/journal/11340 en_ZA
dc.citation.spage 1627 en_ZA


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