Simulation of the in-plane structural behavior of unreinforced masonry walls and buildings using DEM
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/68377 |
Resumo: | In this study, a novel computational modeling strategy is proposed to estimate the lateral load capacity and behavior of unreinforced masonry (URM) structures. All commonly noted failure mechanisms are captured via the proposed modeling strategy using the discrete element method (DEM) in three-dimensions (3D). Masonry walls are represented as a system of elastic discrete blocks, where the nodal velocities are evaluated by integrating the equations of motion using the central difference method. Then, the mechanical interactions among adjacent blocks are examined utilizing the relative contact displacements and employed in the contact stress calculation. Through this research, a new stress-displacement contact constitutive model is considered and implemented in the commercial software 3DEC, which includes softening stress-displacement behavior for tension, shear, and compression along with the fracture energy concept. The results of the discontinuum models are validated on small- and large-scale experimental studies available in the literature with good agreement. Furthermore, important inferences are made regarding the effect of block size, the number of contact points, and contact stiffness values for robust and accurate simulations of masonry walls. |
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Simulation of the in-plane structural behavior of unreinforced masonry walls and buildings using DEMComputational modelingContact mechanicsDiscrete element methodMasonryUnreinforced masonryEngenharia e Tecnologia::Engenharia CivilScience & TechnologyIn this study, a novel computational modeling strategy is proposed to estimate the lateral load capacity and behavior of unreinforced masonry (URM) structures. All commonly noted failure mechanisms are captured via the proposed modeling strategy using the discrete element method (DEM) in three-dimensions (3D). Masonry walls are represented as a system of elastic discrete blocks, where the nodal velocities are evaluated by integrating the equations of motion using the central difference method. Then, the mechanical interactions among adjacent blocks are examined utilizing the relative contact displacements and employed in the contact stress calculation. Through this research, a new stress-displacement contact constitutive model is considered and implemented in the commercial software 3DEC, which includes softening stress-displacement behavior for tension, shear, and compression along with the fracture energy concept. The results of the discontinuum models are validated on small- and large-scale experimental studies available in the literature with good agreement. Furthermore, important inferences are made regarding the effect of block size, the number of contact points, and contact stiffness values for robust and accurate simulations of masonry walls.- (undefined)ElsevierUniversidade do MinhoPulatsu, BoraErdogmus, EceLourenço, Paulo B.Lemos, Jose V.Tuncay, Kagan20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/68377eng2352-01242352-012410.1016/j.istruc.2020.08.026https://www.sciencedirect.com/science/article/pii/S2352012420304173info: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:RCAAP2023-07-21T12:49:43Zoai:repositorium.sdum.uminho.pt:1822/68377Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:48:16.775193Repositório 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 |
Simulation of the in-plane structural behavior of unreinforced masonry walls and buildings using DEM |
title |
Simulation of the in-plane structural behavior of unreinforced masonry walls and buildings using DEM |
spellingShingle |
Simulation of the in-plane structural behavior of unreinforced masonry walls and buildings using DEM Pulatsu, Bora Computational modeling Contact mechanics Discrete element method Masonry Unreinforced masonry Engenharia e Tecnologia::Engenharia Civil Science & Technology |
title_short |
Simulation of the in-plane structural behavior of unreinforced masonry walls and buildings using DEM |
title_full |
Simulation of the in-plane structural behavior of unreinforced masonry walls and buildings using DEM |
title_fullStr |
Simulation of the in-plane structural behavior of unreinforced masonry walls and buildings using DEM |
title_full_unstemmed |
Simulation of the in-plane structural behavior of unreinforced masonry walls and buildings using DEM |
title_sort |
Simulation of the in-plane structural behavior of unreinforced masonry walls and buildings using DEM |
author |
Pulatsu, Bora |
author_facet |
Pulatsu, Bora Erdogmus, Ece Lourenço, Paulo B. Lemos, Jose V. Tuncay, Kagan |
author_role |
author |
author2 |
Erdogmus, Ece Lourenço, Paulo B. Lemos, Jose V. Tuncay, Kagan |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Pulatsu, Bora Erdogmus, Ece Lourenço, Paulo B. Lemos, Jose V. Tuncay, Kagan |
dc.subject.por.fl_str_mv |
Computational modeling Contact mechanics Discrete element method Masonry Unreinforced masonry Engenharia e Tecnologia::Engenharia Civil Science & Technology |
topic |
Computational modeling Contact mechanics Discrete element method Masonry Unreinforced masonry Engenharia e Tecnologia::Engenharia Civil Science & Technology |
description |
In this study, a novel computational modeling strategy is proposed to estimate the lateral load capacity and behavior of unreinforced masonry (URM) structures. All commonly noted failure mechanisms are captured via the proposed modeling strategy using the discrete element method (DEM) in three-dimensions (3D). Masonry walls are represented as a system of elastic discrete blocks, where the nodal velocities are evaluated by integrating the equations of motion using the central difference method. Then, the mechanical interactions among adjacent blocks are examined utilizing the relative contact displacements and employed in the contact stress calculation. Through this research, a new stress-displacement contact constitutive model is considered and implemented in the commercial software 3DEC, which includes softening stress-displacement behavior for tension, shear, and compression along with the fracture energy concept. The results of the discontinuum models are validated on small- and large-scale experimental studies available in the literature with good agreement. Furthermore, important inferences are made regarding the effect of block size, the number of contact points, and contact stiffness values for robust and accurate simulations of masonry walls. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 2020-01-01T00:00:00Z |
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/1822/68377 |
url |
http://hdl.handle.net/1822/68377 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2352-0124 2352-0124 10.1016/j.istruc.2020.08.026 https://www.sciencedirect.com/science/article/pii/S2352012420304173 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133060446289920 |