Mostra el registre d'ítem simple
A new continuous-discontinuous damage model: cohesive cracks via an accurate energy-transfer process
dc.contributor.author | Tamayo Mas, Elena |
dc.contributor.author | Rodríguez Ferran, Antonio |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III |
dc.date.accessioned | 2015-06-30T11:50:18Z |
dc.date.available | 2015-06-30T11:50:18Z |
dc.date.created | 2014-02 |
dc.date.issued | 2014-02 |
dc.identifier.citation | Tamayo, 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.issn | 0167-8442 |
dc.identifier.uri | http://hdl.handle.net/2117/28470 |
dc.description.abstract | A 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.extent | 12 p. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject | Àrees temàtiques de la UPC::Matemàtiques i estadística |
dc.subject.lcsh | Fracture mechanics |
dc.subject.other | Cohesive cracks |
dc.subject.other | Continuous-discontinuous strategy |
dc.subject.other | Energy balance |
dc.subject.other | Regularisation |
dc.subject.other | Smoothed displacements |
dc.title | A new continuous-discontinuous damage model: cohesive cracks via an accurate energy-transfer process |
dc.type | Article |
dc.subject.lemac | Mecànica de fractura |
dc.contributor.group | Universitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria |
dc.identifier.doi | 10.1016/j.tafmec.2013.11.009 |
dc.description.peerreviewed | Peer Reviewed |
dc.subject.ams | Classificació AMS::74 Mechanics of deformable solids::74R Fracture and damage |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S0167844213000785# |
dc.rights.access | Open Access |
local.identifier.drac | 13856220 |
dc.description.version | Postprint (author’s final draft) |
local.citation.author | Tamayo, E.; Rodriguez, A. |
local.citation.publicationName | Theoretical and applied fracture mechanics |
local.citation.volume | 69 |
local.citation.startingPage | 90 |
local.citation.endingPage | 101 |
Fitxers d'aquest items
Aquest ítem apareix a les col·leccions següents
-
Articles de revista [3.265]
-
Articles de revista [589]