Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an Explosion

Autores
Ameijeiras, Mariano Pablo; Godoy, Luis Augusto
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The static and dynamic behavior of a horizontal cylindrical shell (as used to store fuels in tanks) is investigated in this work by means of computational modeling. Under a distributed pressure commonly used to model effects due to explosions, the geometrically nonlinear behavior is explored to identify bifurcation and limit points along the static equilibrium path, and the associated displacements. Critical load reductions due to imperfections are found in the order of 25%. The dynamic analysis is next presented to identify the possibility of reaching a quasi-bifurcation. It is found that the first peak in the transient response at which the displacement reaches the same value as in the limit static case occurs for a load which is about 3.5 times the static bifurcation load. The velocity is zero at this state and is identified as a quasi-bifurcation, at which the shell is expected to display a static instability. Imperfection-sensitivity of the quasi-bifurcation load is found to be of the same order as the static one. This is the first quasi-bifurcation study of a shell to identify dynamic buckling due to a nearby explosion.
Fil: Ameijeiras, Mariano Pablo. Universidad Nacional de Córdoba; Argentina
Fil: Godoy, Luis Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; Argentina
Materia
DYNAMIC BUCKLING
EXPLOSIONS
IMPERFECTION-SENSITIVITY
QUASI-BIFURCATIONS
SHELL STRUCTURES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/138009
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an ExplosionAmeijeiras, Mariano PabloGodoy, Luis AugustoDYNAMIC BUCKLINGEXPLOSIONSIMPERFECTION-SENSITIVITYQUASI-BIFURCATIONSSHELL STRUCTUREShttps://purl.org/becyt/ford/2.1https://purl.org/becyt/ford/2The static and dynamic behavior of a horizontal cylindrical shell (as used to store fuels in tanks) is investigated in this work by means of computational modeling. Under a distributed pressure commonly used to model effects due to explosions, the geometrically nonlinear behavior is explored to identify bifurcation and limit points along the static equilibrium path, and the associated displacements. Critical load reductions due to imperfections are found in the order of 25%. The dynamic analysis is next presented to identify the possibility of reaching a quasi-bifurcation. It is found that the first peak in the transient response at which the displacement reaches the same value as in the limit static case occurs for a load which is about 3.5 times the static bifurcation load. The velocity is zero at this state and is identified as a quasi-bifurcation, at which the shell is expected to display a static instability. Imperfection-sensitivity of the quasi-bifurcation load is found to be of the same order as the static one. This is the first quasi-bifurcation study of a shell to identify dynamic buckling due to a nearby explosion.Fil: Ameijeiras, Mariano Pablo. Universidad Nacional de Córdoba; ArgentinaFil: Godoy, Luis Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; ArgentinaShahid Chamran University of Ahvaz2021-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/138009Ameijeiras, Mariano Pablo; Godoy, Luis Augusto; Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an Explosion; Shahid Chamran University of Ahvaz; Journal of Applied and Computational Mechanics; 7; 2; 3-2021; 984-9922383-4536CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.22055/JACM.2021.35449.2659info:eu-repo/semantics/altIdentifier/url/https://jacm.scu.ac.ir/article_16514.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:38Zoai:ri.conicet.gov.ar:11336/138009instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:01:38.392CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an Explosion
title Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an Explosion
spellingShingle Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an Explosion
Ameijeiras, Mariano Pablo
DYNAMIC BUCKLING
EXPLOSIONS
IMPERFECTION-SENSITIVITY
QUASI-BIFURCATIONS
SHELL STRUCTURES
title_short Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an Explosion
title_full Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an Explosion
title_fullStr Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an Explosion
title_full_unstemmed Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an Explosion
title_sort Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an Explosion
dc.creator.none.fl_str_mv Ameijeiras, Mariano Pablo
Godoy, Luis Augusto
author Ameijeiras, Mariano Pablo
author_facet Ameijeiras, Mariano Pablo
Godoy, Luis Augusto
author_role author
author2 Godoy, Luis Augusto
author2_role author
dc.subject.none.fl_str_mv DYNAMIC BUCKLING
EXPLOSIONS
IMPERFECTION-SENSITIVITY
QUASI-BIFURCATIONS
SHELL STRUCTURES
topic DYNAMIC BUCKLING
EXPLOSIONS
IMPERFECTION-SENSITIVITY
QUASI-BIFURCATIONS
SHELL STRUCTURES
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.1
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The static and dynamic behavior of a horizontal cylindrical shell (as used to store fuels in tanks) is investigated in this work by means of computational modeling. Under a distributed pressure commonly used to model effects due to explosions, the geometrically nonlinear behavior is explored to identify bifurcation and limit points along the static equilibrium path, and the associated displacements. Critical load reductions due to imperfections are found in the order of 25%. The dynamic analysis is next presented to identify the possibility of reaching a quasi-bifurcation. It is found that the first peak in the transient response at which the displacement reaches the same value as in the limit static case occurs for a load which is about 3.5 times the static bifurcation load. The velocity is zero at this state and is identified as a quasi-bifurcation, at which the shell is expected to display a static instability. Imperfection-sensitivity of the quasi-bifurcation load is found to be of the same order as the static one. This is the first quasi-bifurcation study of a shell to identify dynamic buckling due to a nearby explosion.
Fil: Ameijeiras, Mariano Pablo. Universidad Nacional de Córdoba; Argentina
Fil: Godoy, Luis Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; Argentina
description The static and dynamic behavior of a horizontal cylindrical shell (as used to store fuels in tanks) is investigated in this work by means of computational modeling. Under a distributed pressure commonly used to model effects due to explosions, the geometrically nonlinear behavior is explored to identify bifurcation and limit points along the static equilibrium path, and the associated displacements. Critical load reductions due to imperfections are found in the order of 25%. The dynamic analysis is next presented to identify the possibility of reaching a quasi-bifurcation. It is found that the first peak in the transient response at which the displacement reaches the same value as in the limit static case occurs for a load which is about 3.5 times the static bifurcation load. The velocity is zero at this state and is identified as a quasi-bifurcation, at which the shell is expected to display a static instability. Imperfection-sensitivity of the quasi-bifurcation load is found to be of the same order as the static one. This is the first quasi-bifurcation study of a shell to identify dynamic buckling due to a nearby explosion.
publishDate 2021
dc.date.none.fl_str_mv 2021-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/138009
Ameijeiras, Mariano Pablo; Godoy, Luis Augusto; Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an Explosion; Shahid Chamran University of Ahvaz; Journal of Applied and Computational Mechanics; 7; 2; 3-2021; 984-992
2383-4536
CONICET Digital
CONICET
url http://hdl.handle.net/11336/138009
identifier_str_mv Ameijeiras, Mariano Pablo; Godoy, Luis Augusto; Quasi-bifurcation and Imperfection-sensitivity of Cylindrical Shells under Pressures due to an Explosion; Shahid Chamran University of Ahvaz; Journal of Applied and Computational Mechanics; 7; 2; 3-2021; 984-992
2383-4536
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.22055/JACM.2021.35449.2659
info:eu-repo/semantics/altIdentifier/url/https://jacm.scu.ac.ir/article_16514.html
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Shahid Chamran University of Ahvaz
publisher.none.fl_str_mv Shahid Chamran University of Ahvaz
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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