Novel non-linear static numerical model for curved masonry structures based on a combined adaptive limit analysis and discrete FE computations
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/88527 |
Resumo: | A new procedure for a fast and comprehensive description of the collapse behavior of curved masonry structures is presented. The first step provides the identification of the exact collapse mechanism and the load-bearing capacity through adaptive NURBS limit analysis. This method is based on the discretization of the masonry vault through very few curved elements, assumed as rigid blocks with internal dissipation allowed only at interfaces, whose shape is iteratively modified until interfaces coincide with the correct position of cracks. On the obtained mechanism, a kinematic non-linear analysis with rigid-softening behavior can be also applied to better understand how the load-bearing capacity decreases during the evolution of the mechanism. A finite element (FE) non-linear static analysis is then applied to obtain the force-displacement curve according to the real elastic-softening behavior. The NURBS optimized model is converted into a discrete FE model composed of three-dimensional elastic units joint together by interfaces where the non-linear mechanical properties are lumped. Within this assumption, non-linear interfaces are applied along the cracks previously found through the limit analysis in a fully automatic way, preventing any mesh dependency effect. Furthermore, the combination of such approaches allows overcoming the respective drawbacks of the methods. Selected masonry arches and vaults are here studied to present the reliability of the presented coupled approach. |
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Novel non-linear static numerical model for curved masonry structures based on a combined adaptive limit analysis and discrete FE computationsMasonry vaultsAdaptive limit analysisAutomatic mesh generationDiscrete approachNon-linear static analysisScience & TechnologyA new procedure for a fast and comprehensive description of the collapse behavior of curved masonry structures is presented. The first step provides the identification of the exact collapse mechanism and the load-bearing capacity through adaptive NURBS limit analysis. This method is based on the discretization of the masonry vault through very few curved elements, assumed as rigid blocks with internal dissipation allowed only at interfaces, whose shape is iteratively modified until interfaces coincide with the correct position of cracks. On the obtained mechanism, a kinematic non-linear analysis with rigid-softening behavior can be also applied to better understand how the load-bearing capacity decreases during the evolution of the mechanism. A finite element (FE) non-linear static analysis is then applied to obtain the force-displacement curve according to the real elastic-softening behavior. The NURBS optimized model is converted into a discrete FE model composed of three-dimensional elastic units joint together by interfaces where the non-linear mechanical properties are lumped. Within this assumption, non-linear interfaces are applied along the cracks previously found through the limit analysis in a fully automatic way, preventing any mesh dependency effect. Furthermore, the combination of such approaches allows overcoming the respective drawbacks of the methods. Selected masonry arches and vaults are here studied to present the reliability of the presented coupled approach.NSFC - National Natural Science Foundation of China(51576043)ElsevierUniversidade do MinhoScacco, JacopoGrillanda, NicolaMilani, GabrieleLourenço, Paulo B.2022-11-022022-11-02T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/88527eng0020-76831879-214610.1016/j.ijsolstr.2021.111265https://www.sciencedirect.com/science/article/pii/S0020768321003474info: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:RCAAP2024-05-11T04:50:27Zoai:repositorium.sdum.uminho.pt:1822/88527Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T04:50:27Repositório 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 |
Novel non-linear static numerical model for curved masonry structures based on a combined adaptive limit analysis and discrete FE computations |
title |
Novel non-linear static numerical model for curved masonry structures based on a combined adaptive limit analysis and discrete FE computations |
spellingShingle |
Novel non-linear static numerical model for curved masonry structures based on a combined adaptive limit analysis and discrete FE computations Scacco, Jacopo Masonry vaults Adaptive limit analysis Automatic mesh generation Discrete approach Non-linear static analysis Science & Technology |
title_short |
Novel non-linear static numerical model for curved masonry structures based on a combined adaptive limit analysis and discrete FE computations |
title_full |
Novel non-linear static numerical model for curved masonry structures based on a combined adaptive limit analysis and discrete FE computations |
title_fullStr |
Novel non-linear static numerical model for curved masonry structures based on a combined adaptive limit analysis and discrete FE computations |
title_full_unstemmed |
Novel non-linear static numerical model for curved masonry structures based on a combined adaptive limit analysis and discrete FE computations |
title_sort |
Novel non-linear static numerical model for curved masonry structures based on a combined adaptive limit analysis and discrete FE computations |
author |
Scacco, Jacopo |
author_facet |
Scacco, Jacopo Grillanda, Nicola Milani, Gabriele Lourenço, Paulo B. |
author_role |
author |
author2 |
Grillanda, Nicola Milani, Gabriele Lourenço, Paulo B. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Scacco, Jacopo Grillanda, Nicola Milani, Gabriele Lourenço, Paulo B. |
dc.subject.por.fl_str_mv |
Masonry vaults Adaptive limit analysis Automatic mesh generation Discrete approach Non-linear static analysis Science & Technology |
topic |
Masonry vaults Adaptive limit analysis Automatic mesh generation Discrete approach Non-linear static analysis Science & Technology |
description |
A new procedure for a fast and comprehensive description of the collapse behavior of curved masonry structures is presented. The first step provides the identification of the exact collapse mechanism and the load-bearing capacity through adaptive NURBS limit analysis. This method is based on the discretization of the masonry vault through very few curved elements, assumed as rigid blocks with internal dissipation allowed only at interfaces, whose shape is iteratively modified until interfaces coincide with the correct position of cracks. On the obtained mechanism, a kinematic non-linear analysis with rigid-softening behavior can be also applied to better understand how the load-bearing capacity decreases during the evolution of the mechanism. A finite element (FE) non-linear static analysis is then applied to obtain the force-displacement curve according to the real elastic-softening behavior. The NURBS optimized model is converted into a discrete FE model composed of three-dimensional elastic units joint together by interfaces where the non-linear mechanical properties are lumped. Within this assumption, non-linear interfaces are applied along the cracks previously found through the limit analysis in a fully automatic way, preventing any mesh dependency effect. Furthermore, the combination of such approaches allows overcoming the respective drawbacks of the methods. Selected masonry arches and vaults are here studied to present the reliability of the presented coupled approach. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11-02 2022-11-02T00:00:00Z |
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 |
https://hdl.handle.net/1822/88527 |
url |
https://hdl.handle.net/1822/88527 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0020-7683 1879-2146 10.1016/j.ijsolstr.2021.111265 https://www.sciencedirect.com/science/article/pii/S0020768321003474 |
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 |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
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 |
repository.mail.fl_str_mv |
mluisa.alvim@gmail.com |
_version_ |
1817544434678497280 |