Naslov
Detection of sparse damages in plates

Autori
Sabourova, Natalia ; Duvnjak, Ivan ; Grip, Niklas ; Damjanović, Domagoj ; Tu, Yongming ; Popescu, Cosmin ; Ohlsson, Ulf ; Elfgren, Lennart ;

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
IABSE SYMPOSIUM Wrocław 2020 / Bień, Jan ; Biliszczuk, Jan ; Hawryszków, Paweł ; Hildebrand, Maciej ; Knawa-Hawryszków, Marta ; Sadowski, Krzysztof ; - Wrocław : International Association for Bridge and Structural Engineering (IABSE), 2020, 1141-1148

ISBN
978-3-85748-169-7

Skup
IABSE Symposium "Synergy of Culture and Civil Engineering - History and Challenges"

Mjesto i datum
Wrocław, Poljska, 07.10.2020. - 09.10.2020

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Damage Detection, Sparse Damages, Finite Element Updating, Non-Destructive Testing, Assessment, Structural Health Monitoring (SHM).

Sažetak
Structural damage is often a spatially sparse phenomenon, i.e. it occurs only in a small part of the structure. This property of damage has not been utilized in the field of structural damage identification until quite recently, when the sparsity-based regularization developed in compressed sensing problems found its application in this field. In this paper we consider classical sensitivity-based finite element model updating combined with a regularization technique appropriate for the expected type of sparse damage. The validity of the proposed methods is demonstrated using simulations on a bridge. The pros and cons of these methods are discussed.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA