Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental Validation

Autores
Rossit, Carlos Adolfo; Bambill, Diana Virginia; Ratazzi, Alejandro Ruben; Maiz, Santiago
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A crack on a structural member introduces a local flexibility which is function of the crack depth. This new flexibility condition changes the dynamic behavior of the structure. The knowledge of the influence of the crack on the characteristic dynamic parameters makes it possible to determine both the crack position and its magnitude. A large number of research papers have been written on the subject, most of them on straight beams of a single segment. However, despite the importance of L-shaped beams in a variety of technological applications, very limited information is available for the case of such structures. In this article, a cracked L-beam structure is studied by an analytical approach which is validated by experimental measurements. The Euler–Bernoulli beam theory is assumed to describe the transversal displacements and the crack is modeled by means of an elastically restrained hinge. A special device was designed to measure experimentally the natural frequencies of steel L-beams structures. The natural frequencies of in plane vibrations of L-beam structures are obtained considering a crack at different positions as well as of different depths. Values obtained with the analytical solution are satisfactorily compared with experimentally measured frequencies and the values reported in previous studies on the subject published by other authors.
Fil: Rossit, Carlos Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería; Argentina
Fil: Bambill, Diana Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería; Argentina
Fil: Ratazzi, Alejandro Ruben. Universidad Nacional del Sur. Departamento de Ingeniería; Argentina
Fil: Maiz, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería; Argentina
Materia
Crack
Damage
Elastic Hinge
L-Beam
L-Shaped Beam
Vibrations
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/59426
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental ValidationRossit, Carlos AdolfoBambill, Diana VirginiaRatazzi, Alejandro RubenMaiz, SantiagoCrackDamageElastic HingeL-BeamL-Shaped BeamVibrationshttps://purl.org/becyt/ford/2.1https://purl.org/becyt/ford/2A crack on a structural member introduces a local flexibility which is function of the crack depth. This new flexibility condition changes the dynamic behavior of the structure. The knowledge of the influence of the crack on the characteristic dynamic parameters makes it possible to determine both the crack position and its magnitude. A large number of research papers have been written on the subject, most of them on straight beams of a single segment. However, despite the importance of L-shaped beams in a variety of technological applications, very limited information is available for the case of such structures. In this article, a cracked L-beam structure is studied by an analytical approach which is validated by experimental measurements. The Euler–Bernoulli beam theory is assumed to describe the transversal displacements and the crack is modeled by means of an elastically restrained hinge. A special device was designed to measure experimentally the natural frequencies of steel L-beams structures. The natural frequencies of in plane vibrations of L-beam structures are obtained considering a crack at different positions as well as of different depths. Values obtained with the analytical solution are satisfactorily compared with experimentally measured frequencies and the values reported in previous studies on the subject published by other authors.Fil: Rossit, Carlos Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería; ArgentinaFil: Bambill, Diana Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería; ArgentinaFil: Ratazzi, Alejandro Ruben. Universidad Nacional del Sur. Departamento de Ingeniería; ArgentinaFil: Maiz, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería; ArgentinaWiley Blackwell Publishing, Inc2016-06-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/59426Rossit, Carlos Adolfo; Bambill, Diana Virginia; Ratazzi, Alejandro Ruben; Maiz, Santiago; Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental Validation; Wiley Blackwell Publishing, Inc; Experimental Techniques; 40; 3; 25-6-2016; 1033-10430732-88181747-1567CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s40799-016-0104-yinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s40799-016-0104-yinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:26:26Zoai:ri.conicet.gov.ar:11336/59426instacron: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:34982025-10-15 14:26:27.018CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental Validation
title Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental Validation
spellingShingle Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental Validation
Rossit, Carlos Adolfo
Crack
Damage
Elastic Hinge
L-Beam
L-Shaped Beam
Vibrations
title_short Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental Validation
title_full Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental Validation
title_fullStr Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental Validation
title_full_unstemmed Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental Validation
title_sort Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental Validation
dc.creator.none.fl_str_mv Rossit, Carlos Adolfo
Bambill, Diana Virginia
Ratazzi, Alejandro Ruben
Maiz, Santiago
author Rossit, Carlos Adolfo
author_facet Rossit, Carlos Adolfo
Bambill, Diana Virginia
Ratazzi, Alejandro Ruben
Maiz, Santiago
author_role author
author2 Bambill, Diana Virginia
Ratazzi, Alejandro Ruben
Maiz, Santiago
author2_role author
author
author
dc.subject.none.fl_str_mv Crack
Damage
Elastic Hinge
L-Beam
L-Shaped Beam
Vibrations
topic Crack
Damage
Elastic Hinge
L-Beam
L-Shaped Beam
Vibrations
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.1
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A crack on a structural member introduces a local flexibility which is function of the crack depth. This new flexibility condition changes the dynamic behavior of the structure. The knowledge of the influence of the crack on the characteristic dynamic parameters makes it possible to determine both the crack position and its magnitude. A large number of research papers have been written on the subject, most of them on straight beams of a single segment. However, despite the importance of L-shaped beams in a variety of technological applications, very limited information is available for the case of such structures. In this article, a cracked L-beam structure is studied by an analytical approach which is validated by experimental measurements. The Euler–Bernoulli beam theory is assumed to describe the transversal displacements and the crack is modeled by means of an elastically restrained hinge. A special device was designed to measure experimentally the natural frequencies of steel L-beams structures. The natural frequencies of in plane vibrations of L-beam structures are obtained considering a crack at different positions as well as of different depths. Values obtained with the analytical solution are satisfactorily compared with experimentally measured frequencies and the values reported in previous studies on the subject published by other authors.
Fil: Rossit, Carlos Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería; Argentina
Fil: Bambill, Diana Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería; Argentina
Fil: Ratazzi, Alejandro Ruben. Universidad Nacional del Sur. Departamento de Ingeniería; Argentina
Fil: Maiz, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería; Argentina
description A crack on a structural member introduces a local flexibility which is function of the crack depth. This new flexibility condition changes the dynamic behavior of the structure. The knowledge of the influence of the crack on the characteristic dynamic parameters makes it possible to determine both the crack position and its magnitude. A large number of research papers have been written on the subject, most of them on straight beams of a single segment. However, despite the importance of L-shaped beams in a variety of technological applications, very limited information is available for the case of such structures. In this article, a cracked L-beam structure is studied by an analytical approach which is validated by experimental measurements. The Euler–Bernoulli beam theory is assumed to describe the transversal displacements and the crack is modeled by means of an elastically restrained hinge. A special device was designed to measure experimentally the natural frequencies of steel L-beams structures. The natural frequencies of in plane vibrations of L-beam structures are obtained considering a crack at different positions as well as of different depths. Values obtained with the analytical solution are satisfactorily compared with experimentally measured frequencies and the values reported in previous studies on the subject published by other authors.
publishDate 2016
dc.date.none.fl_str_mv 2016-06-25
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/11336/59426
Rossit, Carlos Adolfo; Bambill, Diana Virginia; Ratazzi, Alejandro Ruben; Maiz, Santiago; Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental Validation; Wiley Blackwell Publishing, Inc; Experimental Techniques; 40; 3; 25-6-2016; 1033-1043
0732-8818
1747-1567
CONICET Digital
CONICET
url http://hdl.handle.net/11336/59426
identifier_str_mv Rossit, Carlos Adolfo; Bambill, Diana Virginia; Ratazzi, Alejandro Ruben; Maiz, Santiago; Vibrations of L-Shaped Beam Structures With a Crack: Analytical Approach and Experimental Validation; Wiley Blackwell Publishing, Inc; Experimental Techniques; 40; 3; 25-6-2016; 1033-1043
0732-8818
1747-1567
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s40799-016-0104-y
info:eu-repo/semantics/altIdentifier/doi/10.1007/s40799-016-0104-y
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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
_version_ 1846082710062235648
score 13.22299

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