An aproximate technique for damage identification in beams using nonlinear regression analysis of bending frequency changes

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Title:	An aproximate technique for damage identification in beams using nonlinear regression analysis of bending frequency changes
Authors:	ID Ekinovic, Elma (Author) ID Doleček, Vlatko (Author) ID Dolinšek, Slavko (Author) ID Hodzic, Nedim (Author)
Files:	http://annals.fih.upt.ro/pdf-full/2009/ANNALS-2009-3-40.pdf
Language:	English
Work type:	Not categorized
Typology:	1.01 - Original Scientific Article
Organization:	FM - Faculty of Management
Abstract:	This paper addresses the problem of damage identification in beam-like structures on the base of bending frequency changes. The identification of damage location and its depth is performed by use of regression relations between changes in natural frequencies and damage parameters. Input data for establishing the regression relations are collected using numerical analysis (FEA) of the beam structure with and without damage. The damage is simulated as a narrow open notch perpendicular to the beam axis. The efficiency and limitations of the proposed technique are assessed through a series of damage scenarios.
Keywords:	damage identification, finite element analysis, nonlinear regression
Year of publishing:	2009
Number of pages:	str. 192-200
Numbering:	Tome 7, Fasc. 3
PID:	20.500.12556/RUP-944
ISSN:	1584-2665
UDC:	519.23
COBISS.SI-ID:	3665879
Publication date in RUP:	15.10.2013
Views:	3240
Downloads:	83
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