Non-destructive testing on aramid fibres for the long-term assessment of interventions on heritage structures

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dc.contributor.authorCeravolo, Rosario
dc.contributor.authorDe Marchi, Andrea
dc.contributor.authorPinotti, Elena
dc.contributor.authorSurace, Cecilia
dc.contributor.authorZanotti Fragonara, Luca
dc.date.accessioned2016-10-03T13:57:21Z
dc.date.available2016-10-03T13:57:21Z
dc.date.issued2015-07-09
dc.description.abstractHigh strength fibre reinforced polymers (FRPs) are composite materials made of fibres such as carbon, aramid and/or glass, and a resin matrix. FRPs are commonly used for structural repair and strengthening interventions and exhibit high potential for applications to existing constructions, including heritage buildings. In regard to aramid fibres, uncertainties about the long-term behaviour of these materials have often made the designers reluctant to use them in structural engineering. The present study describes simple and non-destructive nonlinearity tests for assessing damage or degradation of structural properties in Kevlar fibres. This was obtained by using high precision measurements to detect small deviations in the dynamic response measured on fibres and ropes. The change in dynamic properties was then related to a damage produced by exposure of the sample to UV rays for a defined time period, which simulated long-term sun exposure. In order to investigate the sensitivity of such an approach to damage detection, non-linearity characterisation tests were conducted on aramid fibres in both damaged and undamaged states. With the purpose of carrying out dynamic tests on small fibre specimens, a dedicated instrumentation was designed and built in cooperation with the Metrology Laboratory of the Department of Electronics at the Politecnico di Torino.en_UK
dc.identifier.citationCeravolo et al. 2015. Non-destructive testing on aramid fibres for the long-term assessment of interventions on heritage structures, Journal of Physics: Conference Series, Volume 628, Conference 1.en_UK
dc.identifier.isbnhttp://dx.doi.org/10.1088/1742-6596/628/1/012102
dc.identifier.issn1742-6588
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/10647
dc.language.isoenen_UK
dc.publisherIOP Publishing: Conference Series / Institute of Physics (IoP)en_UK
dc.rightsAttribution 3.0 Unported (CC BY 3.0). You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.  
dc.titleNon-destructive testing on aramid fibres for the long-term assessment of interventions on heritage structuresen_UK
dc.typeArticleen_UK

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