On the rate dependent behaviour of epoxy adhesive joints: experimental characterisation and modelling of mode I failure

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dc.contributor.authorLißner, M.
dc.contributor.authorAlabort, E.
dc.contributor.authorCui, Hao
dc.contributor.authorPellegrino, Antonio
dc.contributor.authorPetrinic, N.
dc.date.accessioned2018-01-18T14:20:43Z
dc.date.available2018-01-18T14:20:43Z
dc.date.issued2018-01-10
dc.description.abstractThe increasing use of adhesive joints in dynamic applications require reliable measurements of the rate-dependent stress-displacement behaviour. The direct measurement of the stress-displacement curve is necessary when using cohesive models in discretised solutions of boundary value problems in solid mechanics. This paper aims to investigate the rate-dependent tensile failure of adhesive joints by using a new experimental methodology – it relies upon the combination of the stress wave propagation theory and digital image correlation methods on high speed footage to quantify the tensile stress and the dissipated energy respectively. For this purpose, the Split Hopkinson Bar methodology was employed – the experimental configuration was optimised using numerical modelling. To prove the sensitivity of our framework, two different adhesives are characterised at different loading rates: the adhesive failure strength was found to increase considerably with the strain rate, while the plastic deformation of these adhesives was reduced. The film adhesive showed superior performance over the particle toughened one. In the final part, a rate-dependent cohesive zone model is proposed, one which captures the measured behaviour and which has the potential to be used in industrial applications.en_UK
dc.identifier.citationLißner M, Alabort E, Cui H, et al., On the rate dependent behaviour of epoxy adhesive joints: experimental characterisation and modelling of mode I failure. Composite Structures, Volume 189, 1 April 2018, Pages 286-303en_UK
dc.identifier.issn0263-8223
dc.identifier.urihttp://dx.doi.org/10.1016/j.compstruct.2018.01.019
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/12906
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectAdhesive jointsen_UK
dc.subjectRate-dependenten_UK
dc.subjectDynamic characterisationen_UK
dc.subjectCohesive zone modelen_UK
dc.titleOn the rate dependent behaviour of epoxy adhesive joints: experimental characterisation and modelling of mode I failureen_UK
dc.typeArticleen_UK

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