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A new method for structural damage detection and localization based on modal shapes (CROSBI ID 641114)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Duvnjak, Ivan ; Rak, Mladenko ; Damjanović, Domagoj A new method for structural damage detection and localization based on modal shapes // The Fifth International Symposium on Life - Cycle Civil of Engineering Systems : Emphasis on Sustainable Civil Infrastructure . proceedings / Bakker, Jaap ; Frangopol, Dan M. ; Klass van Breugel (ur.). Delft: CRC Press ; A.A. Balkema Publishers, 2016. str. 224-231

Podaci o odgovornosti

Duvnjak, Ivan ; Rak, Mladenko ; Damjanović, Domagoj

engleski

A new method for structural damage detection and localization based on modal shapes

Damage assessment of structures includes estimation of location and severity of damage using changes of dynamic properties (natural frequencies, damping ratios and modal shapes) determined on undam-aged and damaged structure. The basic principle is to use dynamic properties of a structure as indicators of any change of its stiffness and/or mass. In this paper, a new method for damage detection based only on mode shape data is presented to identify damage for plate like structures. A new method is based on comparison of normalised modal shape vectors determined in undamaged and damaged state of the structure. The validity of the proposed method is demonstrated on numerical model. Accuracy of the method is analysed on nine different damage scenarios simulated by local change of elasticity modulus and change in boundary conditions.

Damage ; detection ; mode shapes ; severity ; dynamic properties ; numerical model

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Podaci o prilogu

224-231.

2016.

objavljeno

Podaci o matičnoj publikaciji

The Fifth International Symposium on Life - Cycle Civil of Engineering Systems : Emphasis on Sustainable Civil Infrastructure . proceedings

Bakker, Jaap ; Frangopol, Dan M. ; Klass van Breugel

Delft: CRC Press ; A.A. Balkema Publishers

978-1-138-02847-0

Podaci o skupu

International Symposium on Life - Cycle Civil Engineering (5 ; 2016)

predavanje

16.07.2016-19.07.2016

Delft, Nizozemska

Povezanost rada

Građevinarstvo