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Biomechanical analysis of PDMS channels using different hyperelastic numerical constitutive models

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dc.contributor.authorCardoso, Cátia
dc.contributor.authorFernandes, Carla S.
dc.contributor.authorLima, Rui A.
dc.contributor.authorRibeiro, J.E.
dc.date.accessioned2019-07-31T11:26:36Z
dc.date.available2019-07-31T11:26:36Z
dc.date.issued2018
dc.description.abstractBrain aneurysms are pathological dilatations of cerebral arteries and are known as one of the most com- mon and serious cerebrovascular events. However, patients with cerebral aneurysms do not exhibit ev- ident symptoms until they rupture. The main objective of the present study is to perform numerical characterizations of the biomechanical behavior of aneurysms in order to analyze the blood vessel wall behavior during the formation of an aneurysm. By taking into account different geometric and physi- ological parameters, flow simulations of a well-known Newtonian fluid (glycerin) was performed using the commercial finite volume method package Ansys®-Fluent, and pressure along the channel was de- termined. These pressures were imported into the channel, in the Ansys®- Static Structural, in order to evaluate and analyze the displacement and strain fields in the channel wall, caused by the internal pressure induced by the fluid flow. All calculations were performed by using the most widely accepted hyperelastic constitutive models and it was found that any constitutive model can be applied to this kind of studies, allowing to visualize where pressure achieves its maximum value and consequently, the most favorable region where the rupture is more likely to occur.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCardoso, Cátia; Fernandes, Carla S.; Lima, R.; Ribeiro, J.E. (2018). Biomechanical analysis of PDMS channels using different hyperelastic numerical constitutive models. Mechanics Research Communications. ISSN 0093-6413. 90, p.26-33pt_PT
dc.identifier.doi10.1016/j.mechrescom.2018.04.007pt_PT
dc.identifier.issn0093-6413
dc.identifier.urihttp://hdl.handle.net/10198/19460
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBrain aneurysmspt_PT
dc.subjectDisplacement and strain fieldspt_PT
dc.subjectNumerical simulationspt_PT
dc.subjectPDMS channelspt_PT
dc.titleBiomechanical analysis of PDMS channels using different hyperelastic numerical constitutive modelspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage33pt_PT
oaire.citation.startPage26pt_PT
oaire.citation.titleMechanics Research Communicationspt_PT
oaire.citation.volume90pt_PT
person.familyNameFernandes
person.familyNameLima
person.familyNameRibeiro
person.givenNameCarla S.
person.givenNameRui A.
person.givenNameJ.E.
person.identifierR-000-6Y8
person.identifier.ciencia-idF319-3D67-9DB7
person.identifier.ciencia-idEE12-C3FB-349D
person.identifier.ciencia-id0F15-FB62-29DB
person.identifier.orcid0000-0002-3138-7493
person.identifier.orcid0000-0003-3428-637X
person.identifier.orcid0000-0001-6300-148X
person.identifier.ridA-4269-2015
person.identifier.ridH-5157-2016
person.identifier.ridG-3839-2018
person.identifier.scopus-author-id8253740700
person.identifier.scopus-author-id18437397800
person.identifier.scopus-author-id25638652400
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication8f9cf139-cfef-4025-ba87-56425618bc6e
relation.isAuthorOfPublication7b50c499-8095-4f4f-8b1b-fa7388e4ff62
relation.isAuthorOfPublicationc90169e6-7889-4270-a096-35b98c75f9f9
relation.isAuthorOfPublication.latestForDiscovery7b50c499-8095-4f4f-8b1b-fa7388e4ff62

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