Please use this identifier to cite or link to this item: http://buratest.brunel.ac.uk/handle/2438/10420
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dc.contributor.authorMusto, M-
dc.contributor.authorAlfano, G-
dc.date.accessioned2015-03-16T15:11:39Z-
dc.date.available2015-03-16T15:11:39Z-
dc.date.issued2015-
dc.identifier.citationInternational Journal for Numerical Methods in Engineering, 103(5): pp. 313–341, (2015)en_US
dc.identifier.issn0029-5981-
dc.identifier.urihttp://onlinelibrary.wiley.com/doi/10.1002/nme.4885/abstract;jsessionid=A2254C702E19B8B084AF6D374927EA13.f04t04-
dc.identifier.urihttp://bura.brunel.ac.uk/handle/2438/10420-
dc.description© 2015 The Authors. International Journal for Numerical Methods in Engineering published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en_US
dc.description.abstractThis paper presents a novel formulation of a hereditary cohesive zone model able to effectively capture ratedependent crack propagation along a defined interface, over a wide range of applied loading rates and with a single set of seven input parameters only, as testified by the remarkable agreement with experimental results in the case of a double cantilever beam made of steel adherends bonded along a rubber interface. The formulation relies on the assumption that the measured fracture energy is the sum of a rate-independent ‘rupture’ energy, related to the rupture of primary bonds at the atomic or molecular level, and of additional dissipation caused by other rate-dependent dissipative mechanisms present in the material and occurring simultaneously to rupture. The first contribution is accounted for by introducing a damage-type internal variable, whose evolution follows a rate-independent law for consistency with the assumption of rate independence of the rupture energy. To account for the additional dissipation, a fractional-calculus-based linear viscoelastic model is used, because for many polymers, it is known to capture the material response within an extremely wide range of strain rates much more effectively than classic models based on an exponential kernel. To the authors’ knowledge, this is the first application of fractional viscoelasticity to the simulation of fracture.en_US
dc.description.sponsorshipThe EPSRCen_US
dc.language.isoenen_US
dc.publisherJohn Wiley & Sons Ltd.en_US
dc.subjectCohesive zoneen_US
dc.subjectFractureen_US
dc.subjectFractional viscoelasticityen_US
dc.subjectDamage mechanicsen_US
dc.titleA fractional rate-dependent cohesive-zone modelen_US
dc.typeArticleen_US
dc.identifier.doihttp://dx.doi.org/10.1002/nme.4885-
dc.relation.isPartOfINTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING-
dc.relation.isPartOfINTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING-
pubs.publication-statusAccepted-
pubs.publication-statusAccepted-
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pubs.organisational-data/Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences/Dept of Mechanical, Aerospace and Civil Engineering-
pubs.organisational-data/Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences/Dept of Mechanical, Aerospace and Civil Engineering/Mechanical and Aerospace Engineering-
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pubs.organisational-data/Brunel/Brunel Staff by Institute/Theme/Institute of Materials and Manufacturing-
pubs.organisational-data/Brunel/Brunel Staff by Institute/Theme/Institute of Materials and Manufacturing/Structural Integrity-
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pubs.organisational-data/Brunel/University Research Centres and Groups/Brunel Business School - URCs and Groups/Centre for Research into Entrepreneurship, International Business and Innovation in Emerging Markets-
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Appears in Collections:Dept of Mechanical Aerospace and Civil Engineering Research Papers

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