Numerical analysis of the influence of sample stiffness and plate shape in the Brazilian test

Due to the heterogeneity of rocks, their tensile strength is around 10% of their compressive strength, which means that breakage is mainly caused by tensile stress. The measure of tensile stress is very difficult due to rock fragility, so it has usually been measured by indirect measurement methods...

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Autores:
Álvarez Fernández, Martina Inmaculada
González Nicieza, Celestino
Prendes Gero, Maria Belén
García-Menéndez, José Ramón
Peñas Espinosa, Juan Carlos
Suarez Dominguez, Francisco José
Tipo de recurso:
Article of journal
Fecha de publicación:
2015
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/60616
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/60616
http://bdigital.unal.edu.co/58948/
Palabra clave:
62 Ingeniería y operaciones afines / Engineering
Brazilian test
test monitoring
numerical simulation.
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openAccess
License
Atribución-NoComercial 4.0 Internacional
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spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Álvarez Fernández, Martina Inmaculada89fbd484-86f5-45ed-b401-7ce6988695e9300González Nicieza, Celestino7e9464bb-9dec-44ac-81fd-7d166c4ecd59300Prendes Gero, Maria Belénbf04bd10-86bb-4a63-972c-df4ee6d71ef5300García-Menéndez, José Ramón29a95a77-7d89-4ad7-8431-a00be57f2e42300Peñas Espinosa, Juan Carlos2086555b-4e1b-4bd9-8d3f-80338a8121b4300Suarez Dominguez, Francisco Joséde23f7b8-d4b9-43da-8479-32a1553a35953002019-07-02T18:43:33Z2019-07-02T18:43:33Z2015-11-01ISSN: 2346-2183https://repositorio.unal.edu.co/handle/unal/60616http://bdigital.unal.edu.co/58948/Due to the heterogeneity of rocks, their tensile strength is around 10% of their compressive strength, which means that breakage is mainly caused by tensile stress. The measure of tensile stress is very difficult due to rock fragility, so it has usually been measured by indirect measurement methods , including the Brazilian test. However, recent works indicate that the tensile strength values obtained through the Brazilian test must be increased by almost 26%. To understand this divergence, indirect tensile tests have been monitored. The aim is to know the material deformation and load increase by means of stepwise regression. Stress fields in slightly deformed samples are analyzed and modeled (3D finite differences) with loads applied on flat and curved plates and different Young's modulus. Finally, the results are analyzed and compared with strength values reported using Timoshenko theory and Hondros' approximation.application/pdfspaUniversidad Nacional de Colombia (Sede Medellín). Facultad de Minas.https://revistas.unal.edu.co/index.php/dyna/article/view/45526Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaÁlvarez Fernández, Martina Inmaculada and González Nicieza, Celestino and Prendes Gero, Maria Belén and García-Menéndez, José Ramón and Peñas Espinosa, Juan Carlos and Suarez Dominguez, Francisco José (2015) Numerical analysis of the influence of sample stiffness and plate shape in the Brazilian test. DYNA, 82 (194). pp. 79-85. ISSN 2346-218362 Ingeniería y operaciones afines / EngineeringBrazilian testtest monitoringnumerical simulation.Numerical analysis of the influence of sample stiffness and plate shape in the Brazilian testArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL45526-277882-1-PB.pdfapplication/pdf1796732https://repositorio.unal.edu.co/bitstream/unal/60616/1/45526-277882-1-PB.pdf8f9bcc05bd0727ab0a07b096b4abcfeeMD51THUMBNAIL45526-277882-1-PB.pdf.jpg45526-277882-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg9205https://repositorio.unal.edu.co/bitstream/unal/60616/2/45526-277882-1-PB.pdf.jpgaa25ce138266bebb78fc1b2920092e7aMD52unal/60616oai:repositorio.unal.edu.co:unal/606162024-04-14 23:11:16.511Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv Numerical analysis of the influence of sample stiffness and plate shape in the Brazilian test
title Numerical analysis of the influence of sample stiffness and plate shape in the Brazilian test
spellingShingle Numerical analysis of the influence of sample stiffness and plate shape in the Brazilian test
62 Ingeniería y operaciones afines / Engineering
Brazilian test
test monitoring
numerical simulation.
title_short Numerical analysis of the influence of sample stiffness and plate shape in the Brazilian test
title_full Numerical analysis of the influence of sample stiffness and plate shape in the Brazilian test
title_fullStr Numerical analysis of the influence of sample stiffness and plate shape in the Brazilian test
title_full_unstemmed Numerical analysis of the influence of sample stiffness and plate shape in the Brazilian test
title_sort Numerical analysis of the influence of sample stiffness and plate shape in the Brazilian test
dc.creator.fl_str_mv Álvarez Fernández, Martina Inmaculada
González Nicieza, Celestino
Prendes Gero, Maria Belén
García-Menéndez, José Ramón
Peñas Espinosa, Juan Carlos
Suarez Dominguez, Francisco José
dc.contributor.author.spa.fl_str_mv Álvarez Fernández, Martina Inmaculada
González Nicieza, Celestino
Prendes Gero, Maria Belén
García-Menéndez, José Ramón
Peñas Espinosa, Juan Carlos
Suarez Dominguez, Francisco José
dc.subject.ddc.spa.fl_str_mv 62 Ingeniería y operaciones afines / Engineering
topic 62 Ingeniería y operaciones afines / Engineering
Brazilian test
test monitoring
numerical simulation.
dc.subject.proposal.spa.fl_str_mv Brazilian test
test monitoring
numerical simulation.
description Due to the heterogeneity of rocks, their tensile strength is around 10% of their compressive strength, which means that breakage is mainly caused by tensile stress. The measure of tensile stress is very difficult due to rock fragility, so it has usually been measured by indirect measurement methods , including the Brazilian test. However, recent works indicate that the tensile strength values obtained through the Brazilian test must be increased by almost 26%. To understand this divergence, indirect tensile tests have been monitored. The aim is to know the material deformation and load increase by means of stepwise regression. Stress fields in slightly deformed samples are analyzed and modeled (3D finite differences) with loads applied on flat and curved plates and different Young's modulus. Finally, the results are analyzed and compared with strength values reported using Timoshenko theory and Hondros' approximation.
publishDate 2015
dc.date.issued.spa.fl_str_mv 2015-11-01
dc.date.accessioned.spa.fl_str_mv 2019-07-02T18:43:33Z
dc.date.available.spa.fl_str_mv 2019-07-02T18:43:33Z
dc.type.spa.fl_str_mv Artículo de revista
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dc.identifier.issn.spa.fl_str_mv ISSN: 2346-2183
dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/60616
dc.identifier.eprints.spa.fl_str_mv http://bdigital.unal.edu.co/58948/
identifier_str_mv ISSN: 2346-2183
url https://repositorio.unal.edu.co/handle/unal/60616
http://bdigital.unal.edu.co/58948/
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv https://revistas.unal.edu.co/index.php/dyna/article/view/45526
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Dyna
Dyna
dc.relation.references.spa.fl_str_mv Álvarez Fernández, Martina Inmaculada and González Nicieza, Celestino and Prendes Gero, Maria Belén and García-Menéndez, José Ramón and Peñas Espinosa, Juan Carlos and Suarez Dominguez, Francisco José (2015) Numerical analysis of the influence of sample stiffness and plate shape in the Brazilian test. DYNA, 82 (194). pp. 79-85. ISSN 2346-2183
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
dc.rights.uri.spa.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia (Sede Medellín). Facultad de Minas.
institution Universidad Nacional de Colombia
bitstream.url.fl_str_mv https://repositorio.unal.edu.co/bitstream/unal/60616/1/45526-277882-1-PB.pdf
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