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dc.contributor.authorWang, Ben
dc.contributor.authorSeffen, Keithen
dc.contributor.authorGuest, Simonen
dc.contributor.authorLee, TLen
dc.contributor.authorHuang, Sen
dc.contributor.authorLuo, Sen
dc.contributor.authorMi, Jen
dc.date.accessioned2020-07-13T23:30:51Z
dc.date.available2020-07-13T23:30:51Z
dc.date.issued2020-11-10en
dc.identifier.issn0266-3538
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/307907
dc.description.abstractA bistable composite tape-spring (CTS) is stable in both the extended and coiled configurations, with fibres oriented at ±45°. It is light weight and multifunctional, and has attracted growing interest in shape-adaptive and energy harvesting systems in defence-, civil- and, especially aerospace engineering. The factors governing its bistability have been well-understood, but there is limited research concerning the mechanics of structural failure: here, we investigate the shear failure mechanisms in particular. We perform in-situ neutron diffraction on composite specimens using the ENGIN-X neutron diffractometer at Rutherford Appleton Laboratory (STFC, UK), and shear failure is characterised at both macroscopic and microscopic scales. Elastic and viscoelastic strain evolutions at different strain levels reveal the fundamentals of micromechanical shear failure, and their temperature dependency. Multiscale shear failure mechanisms are then proposed, which will benefit the optimisation of structural design to maintain structural integrity of CTS in aerospace applications.
dc.description.sponsorshipISIS Neutron and Muon Source, Rutherford Appleton Laboratory, Science and Technology Facilities Council (STFC), Grant no. RB1910213 Innovate UK, ‘‘Large Landing Gear of the Future: Bistable Composite Technologies’’, Grant no. 113077 EPSRC, "NRFIS", Grant no. EP/P013848/1
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleIn-situ multiscale shear failure of a bistable composite tape-springen
dc.typeArticle
prism.publicationDate2020en
prism.publicationNameComposites Science and Technologyen
prism.volume200en
dc.identifier.doi10.17863/CAM.55000
dcterms.dateAccepted2020-07-07en
rioxxterms.versionofrecord10.1016/j.compscitech.2020.108348en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2020-11-10en
dc.contributor.orcidSeffen, Keith [0000-0002-7725-0361]
dc.contributor.orcidGuest, Simon [0000-0002-0152-6579]
dc.identifier.eissn1879-1050
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idTechnology Strategy Board (113077)
pubs.funder-project-idEPSRC (EP/P013848/1)
cam.orpheus.successMon Sep 14 09:23:08 BST 2020 - Embargo updated*
cam.orpheus.counter9*
rioxxterms.freetoread.startdate2021-11-10


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Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted, this item's licence is described as Attribution-NonCommercial-NoDerivatives 4.0 International