Changes in Frequency and Mode Shapes Due to Damage in Steel–Concrete Composite Beam

This study presents an analysis of changes in the vibration frequency and mode of vibration of a composite beam due to damage. A steel–concrete composite beam was considered, for which numerical analysis (RFE model) and experimental tests were conducted. Two levels of damage were introduced to the b...

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Autores principales:	Małgorzata Jarosińska, Stefan Berczyński
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	damage diagnosis structural health monitoring non-destructive testing modal parameters steel–concrete composite beams Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/b37127ab4a4c4ef5a7b5a1a0abf25954
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spelling	oai:doaj.org-article:b37127ab4a4c4ef5a7b5a1a0abf259542021-11-11T17:49:24ZChanges in Frequency and Mode Shapes Due to Damage in Steel–Concrete Composite Beam10.3390/ma142162321996-1944https://doaj.org/article/b37127ab4a4c4ef5a7b5a1a0abf259542021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6232https://doaj.org/toc/1996-1944This study presents an analysis of changes in the vibration frequency and mode of vibration of a composite beam due to damage. A steel–concrete composite beam was considered, for which numerical analysis (RFE model) and experimental tests were conducted. Two levels of damage were introduced to the beam. To determine the changes in the mode of vibration before and after the damage, the modal assurance criterion (MAC) and its partial variation (PMAC) were applied. The curvature damage factor (CDF) was used to determine the changes in the modal curvature. The natural frequencies were sensitive to the introduced damage. The results show that the MAC is not effective in determining the location of damage in the connection plane. Two different coefficients were introduced to locate the damage. The PMAC was used for sections of subsequent modes of vibration and allowed effectively locating the damage. The CDF considered simultaneous changes in the curvatures of all vibration modes and was effective in locating the damage in the connection plane.Małgorzata JarosińskaStefan BerczyńskiMDPI AGarticledamage diagnosisstructural health monitoringnon-destructive testingmodal parameterssteel–concrete composite beamsTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6232, p 6232 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	damage diagnosis structural health monitoring non-destructive testing modal parameters steel–concrete composite beams Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	damage diagnosis structural health monitoring non-destructive testing modal parameters steel–concrete composite beams Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Małgorzata Jarosińska Stefan Berczyński Changes in Frequency and Mode Shapes Due to Damage in Steel–Concrete Composite Beam
description	This study presents an analysis of changes in the vibration frequency and mode of vibration of a composite beam due to damage. A steel–concrete composite beam was considered, for which numerical analysis (RFE model) and experimental tests were conducted. Two levels of damage were introduced to the beam. To determine the changes in the mode of vibration before and after the damage, the modal assurance criterion (MAC) and its partial variation (PMAC) were applied. The curvature damage factor (CDF) was used to determine the changes in the modal curvature. The natural frequencies were sensitive to the introduced damage. The results show that the MAC is not effective in determining the location of damage in the connection plane. Two different coefficients were introduced to locate the damage. The PMAC was used for sections of subsequent modes of vibration and allowed effectively locating the damage. The CDF considered simultaneous changes in the curvatures of all vibration modes and was effective in locating the damage in the connection plane.
format	article
author	Małgorzata Jarosińska Stefan Berczyński
author_facet	Małgorzata Jarosińska Stefan Berczyński
author_sort	Małgorzata Jarosińska
title	Changes in Frequency and Mode Shapes Due to Damage in Steel–Concrete Composite Beam
title_short	Changes in Frequency and Mode Shapes Due to Damage in Steel–Concrete Composite Beam
title_full	Changes in Frequency and Mode Shapes Due to Damage in Steel–Concrete Composite Beam
title_fullStr	Changes in Frequency and Mode Shapes Due to Damage in Steel–Concrete Composite Beam
title_full_unstemmed	Changes in Frequency and Mode Shapes Due to Damage in Steel–Concrete Composite Beam
title_sort	changes in frequency and mode shapes due to damage in steel–concrete composite beam
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b37127ab4a4c4ef5a7b5a1a0abf25954
work_keys_str_mv	AT małgorzatajarosinska changesinfrequencyandmodeshapesduetodamageinsteelconcretecompositebeam AT stefanberczynski changesinfrequencyandmodeshapesduetodamageinsteelconcretecompositebeam
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Changes in Frequency and Mode Shapes Due to Damage in Steel–Concrete Composite Beam

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