Print Email Facebook Twitter Damage Diagnostics on Post-buckled Stiffened Panels Utilizing the Digital-Twin Concept Title Damage Diagnostics on Post-buckled Stiffened Panels Utilizing the Digital-Twin Concept Author Milanoski, Dimitrios (University of Patras) Galanopoulos, Georgios (University of Patras) Zarouchas, D. (TU Delft Structural Integrity & Composites) Loutas, Theodoros (University of Patras) Contributor Rizzo, Piervincenzo (editor) Milazzo, Alberto (editor) Date 2023 Abstract A digital twin representative of a typical composite stiffened panel is utilized to monitor skin-to-stringer disbonds. A validated finite element model of the composite panel estimates the longitudinal strains of the pristine state, at the exact location where integrated fiber Bragg grating sensors are permanently installed. Experimental strains are acquired and compared to those provided by the digital twin in order to reveal the presence of disbonds. The integrated sensor grid is used in a manner that some sensors identify the load acting on the panel, leveraging on the digital twin baseline, whilst the remaining ones are dedicated for diagnostic purposes. Two damaged single-stringer panels are tested under compression-compression fatigue conditions. Static strains are received during quasi-static test intervals among the fatigue cycles. The historical strain data are analyzed in a near real-time manner to detect and localize the induced damage throughout the test span. Subject Composite stiffened panelsDigital twinFiber Bragg grating sensorsStructural health monitoring To reference this document use: http://resolver.tudelft.nl/uuid:a2e1853b-90ae-4e08-b180-927316e822c0 DOI https://doi.org/10.1007/978-3-031-07254-3_21 Publisher Springer Embargo date 2023-07-01 ISBN 978-3-031-07253-6 Source European Workshop on Structural Health Monitoring, EWSHM 2022, Volume 1 Event 10th European Workshop on Structural Health Monitoring, EWSHM 2022, 2022-07-04 → 2022-07-07, Palermo, Italy Series Lecture Notes in Civil Engineering, 2366-2557, 253 LNCE Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type conference paper Rights © 2023 Dimitrios Milanoski, Georgios Galanopoulos, D. Zarouchas, Theodoros Loutas Files PDF 978_3_031_07254_3_21.pdf 1.13 MB Close viewer /islandora/object/uuid:a2e1853b-90ae-4e08-b180-927316e822c0/datastream/OBJ/view