Damage Detection in Structures – Examples-Reference-Cited by-同舟云学术

Damage Detection in Structures – Examples

Published:2019 Issue: Volume: Page:
ISSN:2221-3783
Container-title:IABSE Symposium, Guimarães 2019: Towards a Resilient Built Environment Risk and Asset Management
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Author:

Duvnjak Ivan¹,Damjanović Domagoj¹,Sabourova Natalia²,Grip Niklas²,Ohlsson Ulf²,Elfgren Lennart²^ORCID,Tu Yongming³

Affiliation:

1. University of Zagreb, Croatia,

2. Lulea University of Technology, SE-971 87 Lulea, Sweden,

3. School of Civil Engineering, Southeast University, Nanjing, China

Abstract

<p>Damage assessment of structures includes estimation of location and severity of damage. Quite often it is done by using changes of dynamic properties, such as natural frequencies, mode shapes and damping ratios, determined on undamaged and damaged structures. 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, two new methods for damage detection are presented and compared. The first method is based on comparison of normalised modal shape vectors determined before and after damage. The second method uses so-called 𝑙l-norm regularized finite element model updating. Some important properties of these methods are demonstrated using simulations on a Kirchhoff plate. The pros and cons of the two methods are discussed. Unique aspects of the methods are highlighted.</p>

Publisher

International Association for Bridge and Structural Engineering (IABSE)

Reference23 articles.

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2. A Summary Review of Vibration-Based Damage Identification Methods

3. Detection of structural damage through changes in frequency: a review

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5. Yang Z., Chen X., Yu J., Liu R., Liu Z. and HeZ.A. Damage Identification Approach for Plate Structures Based on Frequency Measurements. Nondestructive Testing and Evaluation. 2013 Dec; 28(4): 321–41.

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