Mostra el registre d'ítem simple

dc.contributor.authorLabanda, Nicolás A.
dc.contributor.authorGiusti, Sebastián M.
dc.contributor.authorLuccioni, Bibiana M.
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2016-11-18T13:01:40Z
dc.date.available2017-11-01T01:30:41Z
dc.date.issued2016-10
dc.identifier.citationLabanda, Nicolás A.; Giusti, Sebastián M.; Luccioni, Bibiana M. Meso-scale fracture simulation using an augmented Lagrangian approach. "International journal of damage mechanics", Octubre 2016, p. 1-38.
dc.identifier.urihttp://hdl.handle.net/2117/96829
dc.description.abstractA cohesive zone model implemented in an augmented Lagrangian functional is used for simulation of meso-scale fracture problems in this paper. The method originally developed by Lorentz is first presented in a rigorous variational framework. The equivalence between the stationary point of the one-field problem and the saddle point of the mixed formulation is proved by solving the double inequality of the mixed functional. An adaptation to simulate fracture phenomena in the meso-scale via mesh modification is also presented as an algorithm to insert zero-thickness interface elements based on Lagrange multipliers, boarding the non-trivial task of the field interpolation for different crack paths (plain and tortuous). A suitable tool to study the matrix fracture and debonding phenomena in composites with strongly different component stiffnesses that avoids ill-conditioning matrices associated with intrinsic cohesive zone models is obtained. The method stability is discussed using a simple patch test. Some numerical applications to fracture problems taking into account the mesostructure and, particularly, the study of transverse failure of longitudinal fiber reinforced epoxy and the fracture in concrete specimens are included in the paper. Comparing the numerical results with the experimental results obtained by other researchers, the paper introduces a discussion about the influence of coarse aggregate volume in meso-scale fracture mechanisms in concrete L-shaped specimens.
dc.format.extent38 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures
dc.subject.lcshFracture mechanics--Mathematical models
dc.subject.otherAugmented Lagrangian method
dc.subject.othercohesive zone model
dc.subject.otherfracture simulation
dc.subject.otherextrinsic traction–separation law
dc.subject.othercomposite materials
dc.subject.otherCOMP-DES-MAT Project
dc.subject.otherCOMPDESMAT Project
dc.titleMeso-scale fracture simulation using an augmented Lagrangian approach
dc.typeArticle
dc.subject.lemacMecànica de fractura -- Models matemàtics
dc.contributor.groupUniversitat Politècnica de Catalunya. (MC)2 - Grup de Mecànica Computacional en Medis Continus
dc.identifier.doi10.1177/1056789516671092
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://ijd.sagepub.com/content/early/2016/10/14/1056789516671092.abstract
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/FP7/320815/EU/Advanced tools for computational design of engineering materials/COMP-DES-MAT
local.citation.publicationNameInternational journal of damage mechanics
local.citation.startingPage1
local.citation.endingPage38


Fitxers d'aquest items

Thumbnail

Aquest ítem apareix a les col·leccions següents

Mostra el registre d'ítem simple