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Detection of Sparse Damages in Plates

Detection of Sparse Damages in Plates
Auteur(s): , , , ,
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Présenté pendant IABSE Symposium: Synergy of Culture and Civil Engineering – History and Challenges, Wrocław, Poland, 7-9 October 2020, publié dans , pp. 1141-1148
DOI: 10.2749/wroclaw.2020.1141
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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 ident...
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Détails bibliographiques

Auteur(s):






Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Symposium: Synergy of Culture and Civil Engineering – History and Challenges, Wrocław, Poland, 7-9 October 2020
Publié dans:
Page(s): 1141-1148 Nombre total de pages (du PDF): 8
Page(s): 1141-1148
Nombre total de pages (du PDF): 8
Année: 2020
DOI: 10.2749/wroclaw.2020.1141
Abstrait:

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.