A hybrid local/non-local framework for the simulation of damage and fracture

Handle URI:
http://hdl.handle.net/10754/312218
Title:
A hybrid local/non-local framework for the simulation of damage and fracture
Authors:
Azdoud, Yan
Abstract:
Recent advances in non-local continuum models, notably peridynamics, have spurred a paradigm shift in solid mechanics simulation by allowing accurate mathematical representation of singularities and discontinuities. This doctoral work attempts to extend the use of this theory to a community more familiar with local continuum models. In this communication, a coupling strategy - the morphing method -, which bridges local and non-local models, is presented. This thesis employs the morphing method to ease use of the non-local model to represent problems with failure-induced discontinuities. First, we give a quick review of strategies for the simulation of discrete degradation, and suggest a hybrid local/non-local alternative. Second, we present the technical concepts involved in the morphing method and evaluate the quality of the coupling. Third, we develop a numerical tool for the simulation of the hybrid model for fracture and damage and demonstrate its capabilities on numerical model examples
Advisors:
Lubineau, Gilles ( 0000-0002-7370-6093 )
Committee Member:
Askari, Abe; Camanho, Pedro; Mai, Paul Martin ( 0000-0002-9744-4964 ) ; Prudhomme, Serge; Samtaney, Ravi ( 0000-0002-4702-6473 ) ; Zohdi, Tarek
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Program:
Mechanical Engineering
Issue Date:
Jan-2014
Type:
Dissertation
Appears in Collections:
Dissertations; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.advisorLubineau, Gillesen
dc.contributor.authorAzdoud, Yanen
dc.date.accessioned2014-02-05T07:44:25Z-
dc.date.available2014-02-05T07:44:25Z-
dc.date.issued2014-01en
dc.identifier.urihttp://hdl.handle.net/10754/312218en
dc.description.abstractRecent advances in non-local continuum models, notably peridynamics, have spurred a paradigm shift in solid mechanics simulation by allowing accurate mathematical representation of singularities and discontinuities. This doctoral work attempts to extend the use of this theory to a community more familiar with local continuum models. In this communication, a coupling strategy - the morphing method -, which bridges local and non-local models, is presented. This thesis employs the morphing method to ease use of the non-local model to represent problems with failure-induced discontinuities. First, we give a quick review of strategies for the simulation of discrete degradation, and suggest a hybrid local/non-local alternative. Second, we present the technical concepts involved in the morphing method and evaluate the quality of the coupling. Third, we develop a numerical tool for the simulation of the hybrid model for fracture and damage and demonstrate its capabilities on numerical model examplesen
dc.language.isoenen
dc.subjectPeridynamicsen
dc.subjectNon-Local Continuumen
dc.subjectCoupling Methodsen
dc.subjectFracture Mechanicsen
dc.subjectDamage Mechanicsen
dc.subjectComputational Mechanicsen
dc.titleA hybrid local/non-local framework for the simulation of damage and fractureen
dc.typeDissertationen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
thesis.degree.grantorKing Abdullah University of Science and Technologyen_GB
dc.contributor.committeememberAskari, Abeen
dc.contributor.committeememberCamanho, Pedroen
dc.contributor.committeememberMai, Paul Martinen
dc.contributor.committeememberPrudhomme, Sergeen
dc.contributor.committeememberSamtaney, Ravien
dc.contributor.committeememberZohdi, Tareken
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.nameDoctor of Philosophyen
dc.person.id113299en
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