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dc.contributor.author
Rossi Cabral, Néstor Oscar
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dc.contributor.author
Invaldi, María Agustina
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dc.contributor.author
Barrios D'Ambra, Ricardo José
dc.contributor.author
Iturrioz, Ignacio
dc.date.available
2020-10-14T14:06:35Z
dc.date.issued
2019-07
dc.identifier.citation
Rossi Cabral, Néstor Oscar; Invaldi, María Agustina; Barrios D'Ambra, Ricardo José; Iturrioz, Ignacio; An alternative bilinear peridynamic model to simulate the damage process in quasi-brittle materials; Pergamon-Elsevier Science Ltd; Engineering Fracture Mechanics; 216; 7-2019
dc.identifier.issn
0013-7944
dc.identifier.uri
http://hdl.handle.net/11336/115864
dc.description.abstract
The study of damage process in quasi-brittle materials (such as plain or reinforced concrete and composites formed by a brittle matrix with ductile filler) is a challenge for researchers, especially when neither linear fracture mechanics nor plasticity approaches can be used. Some quasi-brittle material effects such as localization, scale effects and interaction between a cluster of micro-cracks are difficult to be captured with the standard formulation of the Finite Element Method (FEM). A valid alternative in the study of damage consists in using Discrete Element Methods (DEM). Among different versions available, one proposed by Silling can be highlighted due to the consistent way to connect continuum and discontinuum behaviour. This approach considers the body as composed by a set of nodes with lumped masses that can interact with each other in a finite volume or neighbourhood by uniaxial laws, where the variation of distance between two nodes regulates the intensity of the interaction forces. In this context, a bilinear law to represent this interaction among the nodes is proposed. This law was used by the authors with success in other versions of the DEM. Simulations of sandstone specimens submitted to uniaxial tensile show an acceptable compliance with experimental results, thus verifying the bilinear model. The proposal reduces the computational cost in the simulations and makes the model calibration more flexible. Considerations of the material random nature were fundamental to obtain good results in the applications. Finally, the advantages of the new law implementation are discussed.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
DAMAGE PROCESS
dc.subject
PERIDYNAMIC
dc.subject
QUASI-BRITTLE MATERIALS
dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
An alternative bilinear peridynamic model to simulate the damage process in quasi-brittle materials
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-09-25T19:08:16Z
dc.journal.volume
216
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Rossi Cabral, Néstor Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina. Universidad Nacional del Nordeste. Facultad de Ingeniería. Departamento de Mecanica Aplicada; Argentina
dc.description.fil
Fil: Invaldi, María Agustina. Universidad Nacional del Nordeste. Facultad de Ingeniería. Departamento de Mecanica Aplicada; Argentina
dc.description.fil
Fil: Barrios D'Ambra, Ricardo José. Universidad Nacional del Nordeste. Facultad de Ingeniería. Departamento de Mecanica Aplicada; Argentina
dc.description.fil
Fil: Iturrioz, Ignacio. Promec, Ufrgs; Brasil
dc.journal.title
Engineering Fracture Mechanics
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S001379441930147X
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.engfracmech.2019.106494
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