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dc.contributor.authorTeall, O.R.*
dc.contributor.authorPilegis, M.*
dc.contributor.authorSweeney, John*
dc.contributor.authorGough, Timothy D.*
dc.contributor.authorThompson, Glen P.*
dc.contributor.authorJefferson, A.*
dc.contributor.authorLark, R.*
dc.contributor.authorGardner, D.*
dc.date.accessioned2017-02-13T12:45:03Z
dc.date.available2017-02-13T12:45:03Z
dc.date.issued2017-02-24
dc.identifier.citationTeall OR, Pilegis M, Sweeney J et al (2017) Development of high shrinkage Polyethylene Terephthalate (PET) shape memory polymer tendons for concrete crack closure. Smart Materials and Structures. 26(4): 045006.en_US
dc.identifier.urihttp://hdl.handle.net/10454/11340
dc.descriptionYesen_US
dc.description.abstractThe shrinkage force exerted by restrained shape memory polymers can potentially be used to close cracks in structural concrete. This paper describes the physical processing and experimental work undertaken to develop high shrinkage die-drawn Polyethylene Terephthalate (PET) shape memory polymer tendons for use within a crack closure system. The extrusion and die-drawing procedure used to manufacture a series of PET tendon samples is described. The results from a set of restrained shrinkage tests, undertaken at differing activation temperatures, are also presented along with the mechanical properties of the most promising samples. The stress developed within the tendons is found to be related to the activation temperature, the cross-sectional area and to the draw rate used during manufacture. Comparisons with commercially-available PET strip samples used in previous research are made, demonstrating an increase in restrained shrinkage stress by a factor of two for manufactured PET filament samples.en_US
dc.description.sponsorshipThanks must go to the EPSRC for their funding of the Materials for Life (M4L) project (EP/K026631/1) and to Costain Group PLC. for their industrial sponsorship of the project and author.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.1088/1361-665X/aa5d66en_US
dc.rights© 2017 IOP Publishing Ltd. Reproduced in accordance with the publisher's self-archiving policy. This Accepted Manuscript will be available for reuse under a CC BY-NC-ND 3.0 licence.en_US
dc.subjectShape memory polymers; Concrete cracks; Polyethylene Terephthalate (PET); Restrained shrinkageen_US
dc.titleDevelopment of high shrinkage Polyethylene Terephthalate (PET) shape memory polymer tendons for concrete crack closureen_US
dc.status.refereedYesen_US
dc.date.Accepted2017-02-01
dc.date.application2017-02-01
dc.typeArticleen_US
dc.type.versionAccepted Manuscripten_US
refterms.dateFOA2018-07-26T09:49:13Z


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