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dc.contributor.authorDestrade, Michel
dc.contributor.authorGilchrist, Michael
dc.date.accessioned2013-03-11T10:52:23Z
dc.date.available2013-03-11T10:52:23Z
dc.date.issued2012
dc.identifier.citationRashid, Badar; Destrade, Michel; Gilchrist, Michael (2012) 'Inhomogeneous deformation of brain tissue during tension tests'. Computational Materials Science, 64 :295-300.en_US
dc.identifier.issn0927-0256
dc.identifier.urihttp://hdl.handle.net/10379/3288
dc.description.abstractMechanical characterization of brain tissue has been investigated extensively by various research groups over the past 50 years. These properties are particularly important for modeling Traumatic Brain Injury (TBI). In this research, we present the design and calibration of a High Rate Tension Device (HRTD) capable of performing tests up to a maximum strain rate of 90/s. We use experimental and numerical methods to investigate the effects of inhomogeneous deformation of porcine brain tissue during tension at different specimen thicknesses (4.0 14.0 mm), by performing tension tests at a strain rate of 30/s. One-term Ogden material parameters (μ = 4395.0 Pa, α = −2.8) were derived by performing an inverse finite element analysis to model all experimental data. A similar procedure was adopted to determine Young s modulus (E = 11200 Pa) of the linear elastic regime. Based on this analysis, brain specimens of aspect ratio (diameter/thickness) S /1.0 are required to minimise the effects of inhomogeneous deformation during tension tests.en_US
dc.description.sponsorshipIRCSETen_US
dc.formatapplication/pdfen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofComputational Materials Scienceen
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Ireland
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/ie/
dc.subjectTraumatic Brain Injury (TBI)en_US
dc.subjectImpacten_US
dc.subjectCompressionen_US
dc.subjectShearen_US
dc.subjectOgdenen_US
dc.subjectHyperelasticen_US
dc.subjectElasticen_US
dc.titleInhomogeneous deformation of brain tissue during tension testsen_US
dc.typeArticleen_US
dc.date.updated2013-03-11T10:47:42Z
dc.identifier.doihttp://dx.doi.org/10.1016/j.commatsci.2012.05.030
dc.local.publishedsourcehttp://dx.doi.org/10.1016/j.commatsci.2012.05.030en_US
dc.description.peer-reviewedpeer-reviewed
dc.contributor.funder|~|IRCSET|~|
dc.internal.rssid3623927
dc.local.contactMichel Destrade, Room C202 Áras De Brún, School Of Mathematics, Nui Galway. Email: michel.destrade@nuigalway.ie
dc.local.copyrightcheckedYes
dc.local.versionACCEPTED
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Attribution-NonCommercial-NoDerivs 3.0 Ireland
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Ireland