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dc.contributor.authorLi, Kangan
dc.contributor.authorRodríguez Ferran, Antonio
dc.contributor.authorScovazzi, Guglielmo
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2023-03-27T11:59:23Z
dc.date.available2024-02-28T01:28:45Z
dc.date.issued2023-02-28
dc.identifier.citationLi, K.; Rodriguez-Ferran, A.; Scovazzi, G. A blended shifted-fracture/phase-field framework for sharp/diffuse crack modeling. "International journal for numerical methods in engineering", 28 Febrer 2023, vol. 124, núm. 4, p. 998-1030.
dc.identifier.issn1097-0207
dc.identifier.urihttp://hdl.handle.net/2117/385562
dc.descriptionThis is the peer reviewed version of the following article: Li, K.; Rodriguez-Ferran, A.; Scovazzi, G. A blended shifted-fracture/phase-field framework for sharp/diffuse crack modeling. "International journal for numerical methods in engineering", 28 Febrer 2023, vol. 124, núm. 4, p. 998-1030, which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/nme.7152. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
dc.description.abstractThe shifted fracture method (SFM) is an embedded method that enables sharp crack representations while using mesh-fitted data structures. In the SFM, the true crack is embedded in the computational grid, but the crack interface conditions are approximated by, or shifted to, a surrogate crack composed of element boundaries (i.e., edges/faces in two/three dimensions). This avoids enriched degrees-of-freedom and cut elements, so that data structures and geometrical treatment are much simpler, while still maintaining mesh-independent and accurate crack approximations. This article presents a continuous-discontinuous model of fracture based on blending a phase-field (PF) model with the SFM. The PF tracks the evolution of cracks inside a numerical fracture processing zone: diffuse cracks initiate, propagate, branch, and merge according to the field equations of energy minimization; no ad-hoc criteria are needed. The PF damage variable is then used to define the geometry of the true crack. With computational efficiency in mind, the PF model is only solved in subdomains where additional crack growth is expected and the SFM representation is used elsewhere. The efficiency and accuracy of the proposed approach in capturing complex crack patterns are illustrated by a representative set of two-dimensional numerical examples.
dc.format.extent33 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències
dc.subject.lcshStrength of materials
dc.subject.lcshFracture mechanics
dc.subject.otherShifted boundary method
dc.subject.otherShifted fracture method
dc.subject.otherFracture mechanics
dc.subject.otherPhase-field model
dc.subject.otherEmbedded methods
dc.subject.otherExtended finite element method
dc.titleA blended shifted-fracture/phase-field framework for sharp/diffuse crack modeling
dc.typeArticle
dc.subject.lemacResistència de materials
dc.subject.lemacMecànica de fractura
dc.contributor.groupUniversitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria
dc.identifier.doi10.1002/nme.7152
dc.description.peerreviewedPeer Reviewed
dc.subject.amsClassificació AMS::74 Mechanics of deformable solids::74S Numerical methods
dc.subject.amsClassificació AMS::74 Mechanics of deformable solids::74R Fracture and damage
dc.relation.publisherversionhttps://onlinelibrary.wiley.com/doi/10.1002/nme.7152
dc.rights.accessOpen Access
local.identifier.drac34927499
dc.description.versionPostprint (author's final draft)
local.citation.authorLi, K.; Rodriguez-Ferran, A.; Scovazzi, Guglielmo
local.citation.publicationNameInternational journal for numerical methods in engineering
local.citation.volume124
local.citation.number4
local.citation.startingPage998
local.citation.endingPage1030


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