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dc.contributor.authorTamayo Mas, Elena
dc.contributor.authorRodríguez Ferran, Antonio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III
dc.date.accessioned2015-06-30T11:50:18Z
dc.date.available2015-06-30T11:50:18Z
dc.date.created2014-02
dc.date.issued2014-02
dc.identifier.citationTamayo, E.; Rodriguez, A. A new continuous-discontinuous damage model: cohesive cracks via an accurate energy-transfer process. "Theoretical and applied fracture mechanics", Febrer 2014, vol. 69, p. 90-101.
dc.identifier.issn0167-8442
dc.identifier.urihttp://hdl.handle.net/2117/28470
dc.description.abstractA new continuous-discontinuous strategy to describe failure of quasi-brittle materials is presented. For the early stages of the failure process, a gradient-enhanced model based on smoothed displacements is employed. As soon as the damage parameter exceeds a critical value Dcrit<1, a cohesive crack is introduced. A new criterion to estimate the energy not yet dissipated by the bulk when switching models-from continuous to continuous-discontinuous-is proposed. Then, this energy is transferred to the cohesive crack thus ensuring that the continuous and the continuous-discontinuous strategies are energetically equivalent. Compared to other existing techniques, this new strategy accounts for the different unloading branches of damage models and thus, a more accurate estimation of the energy that has to be transferred is obtained. The performance of this technique is illustrated with one- and two-dimensional examples.
dc.format.extent12 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística
dc.subject.lcshFracture mechanics
dc.subject.otherCohesive cracks
dc.subject.otherContinuous-discontinuous strategy
dc.subject.otherEnergy balance
dc.subject.otherRegularisation
dc.subject.otherSmoothed displacements
dc.titleA new continuous-discontinuous damage model: cohesive cracks via an accurate energy-transfer process
dc.typeArticle
dc.subject.lemacMecànica de fractura
dc.contributor.groupUniversitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria
dc.identifier.doi10.1016/j.tafmec.2013.11.009
dc.description.peerreviewedPeer Reviewed
dc.subject.amsClassificació AMS::74 Mechanics of deformable solids::74R Fracture and damage
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0167844213000785#
dc.rights.accessOpen Access
local.identifier.drac13856220
dc.description.versionPostprint (author’s final draft)
local.citation.authorTamayo, E.; Rodriguez, A.
local.citation.publicationNameTheoretical and applied fracture mechanics
local.citation.volume69
local.citation.startingPage90
local.citation.endingPage101


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