Fracture Toughness Determination on an SCB Specimen by Meshless Methods

Detalhes bibliográficos
Autor(a) principal: Mehri Sofiani, Farid
Data de Publicação: 2022
Outros Autores: Farahani, Behzad V., Belinha, Jorge
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.22/22032
Resumo: This work investigates fracture characteristics of a marble semi-circular bend (SCB) specimen with a pre-defined crack under a compressive loading condition. It aims at evaluating how the fracture toughness can be affected by the crack and span length variation. Numerically, the model is solved using meshless methods, extended to the linear elastic fracture mechanics (LEFM), resorting to radial point interpolation method (RPIM) and its natural neighbor versions (NNRPIMv1 and NNRPIMv2). Alternatively, to validate the meshless method results, the problem is resolved following the finite element method (FEM) model based on the standard 2D constant strain triangle elements. As a result, fracture toughness and the critical strain energy release rate are characterized following the testing method on the cracked straight through semi-circular bend specimen (CSTSCB). A comparison is drawn amongst the theoretical, meshless methods and FEM results to evaluate the capability of advanced numerical methods. Encouraging results have been accomplished leading to validate the supporting numerical methodologies.
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spelling Fracture Toughness Determination on an SCB Specimen by Meshless MethodsFracture toughnessSCBFEMLEFMMeshless methodsRPIMNNRPIMThis work investigates fracture characteristics of a marble semi-circular bend (SCB) specimen with a pre-defined crack under a compressive loading condition. It aims at evaluating how the fracture toughness can be affected by the crack and span length variation. Numerically, the model is solved using meshless methods, extended to the linear elastic fracture mechanics (LEFM), resorting to radial point interpolation method (RPIM) and its natural neighbor versions (NNRPIMv1 and NNRPIMv2). Alternatively, to validate the meshless method results, the problem is resolved following the finite element method (FEM) model based on the standard 2D constant strain triangle elements. As a result, fracture toughness and the critical strain energy release rate are characterized following the testing method on the cracked straight through semi-circular bend specimen (CSTSCB). A comparison is drawn amongst the theoretical, meshless methods and FEM results to evaluate the capability of advanced numerical methods. Encouraging results have been accomplished leading to validate the supporting numerical methodologies.Behzad V. Farahani gratefully acknowledges the funding received from Ministério da Educação e Ciência, Fundação para a Ciência e a Tecnologia (Portugal), under grant PTDC/EME-EME/29339/2017. Farid Mehri Sofiani expresses his deep gratitude to Professor Paulo Tavares de Castro (https://sigarra.up.pt/feup/en/FUNC_GERAL.FORMVIEW?p_codigo=207900 (accessed on 20 December 2021)) for advice and assistance in a course project in which present work initially developed and afterwards extended.MDPIRepositório Científico do Instituto Politécnico do PortoMehri Sofiani, FaridFarahani, Behzad V.Belinha, Jorge2023-01-31T13:46:17Z20222022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/22032eng10.3390/app12052633info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-13T13:18:23Zoai:recipp.ipp.pt:10400.22/22032Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:42:06.681253Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Fracture Toughness Determination on an SCB Specimen by Meshless Methods
title Fracture Toughness Determination on an SCB Specimen by Meshless Methods
spellingShingle Fracture Toughness Determination on an SCB Specimen by Meshless Methods
Mehri Sofiani, Farid
Fracture toughness
SCB
FEM
LEFM
Meshless methods
RPIM
NNRPIM
title_short Fracture Toughness Determination on an SCB Specimen by Meshless Methods
title_full Fracture Toughness Determination on an SCB Specimen by Meshless Methods
title_fullStr Fracture Toughness Determination on an SCB Specimen by Meshless Methods
title_full_unstemmed Fracture Toughness Determination on an SCB Specimen by Meshless Methods
title_sort Fracture Toughness Determination on an SCB Specimen by Meshless Methods
author Mehri Sofiani, Farid
author_facet Mehri Sofiani, Farid
Farahani, Behzad V.
Belinha, Jorge
author_role author
author2 Farahani, Behzad V.
Belinha, Jorge
author2_role author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico do Porto
dc.contributor.author.fl_str_mv Mehri Sofiani, Farid
Farahani, Behzad V.
Belinha, Jorge
dc.subject.por.fl_str_mv Fracture toughness
SCB
FEM
LEFM
Meshless methods
RPIM
NNRPIM
topic Fracture toughness
SCB
FEM
LEFM
Meshless methods
RPIM
NNRPIM
description This work investigates fracture characteristics of a marble semi-circular bend (SCB) specimen with a pre-defined crack under a compressive loading condition. It aims at evaluating how the fracture toughness can be affected by the crack and span length variation. Numerically, the model is solved using meshless methods, extended to the linear elastic fracture mechanics (LEFM), resorting to radial point interpolation method (RPIM) and its natural neighbor versions (NNRPIMv1 and NNRPIMv2). Alternatively, to validate the meshless method results, the problem is resolved following the finite element method (FEM) model based on the standard 2D constant strain triangle elements. As a result, fracture toughness and the critical strain energy release rate are characterized following the testing method on the cracked straight through semi-circular bend specimen (CSTSCB). A comparison is drawn amongst the theoretical, meshless methods and FEM results to evaluate the capability of advanced numerical methods. Encouraging results have been accomplished leading to validate the supporting numerical methodologies.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-01-01T00:00:00Z
2023-01-31T13:46:17Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.22/22032
url http://hdl.handle.net/10400.22/22032
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.3390/app12052633
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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