Title
Hierarchical Upscaling of Data-Driven Damage Diagnostics for Stiffened Composite Aircraft Structures
Author
Broer, Agnes A.R. (TU Delft Structural Integrity & Composites) 
Yue, N. (TU Delft Structural Integrity & Composites)
Galanopoulos, Georgios (University of Patras)
Benedictus, R. (TU Delft Structural Integrity & Composites)
Loutas, Theodoros (University of Patras)
Zarouchas, D. (TU Delft Structural Integrity & Composites)
Contributor
Rizzo, Piervincenzo (editor)
Milazzo, Alberto (editor)
Date
2023
Abstract
To move towards a condition-based maintenance practice for aircraft structures, design of reliable health management methodologies is required. Development of diagnostic methodologies is commonly realised on simplified sample structures with assumptions that methodologies can be adapted for application to realistic aircraft structures under in-service conditions. Yet such actual applications are not conducted. In this work, we study the development of diagnostic methodologies to training structures and their application to dissimilar testing structures. A heterogeneous population is considered, consisting of single-stiffener composite panels for methodology development and training and a multi-stiffener composite panel for application and testing. Characteristics as its composite material, lay-up, and temperature condition are constant while topologies and applied loads differ between the dissimilar structures. Damage in the structural panels is monitored on multiple diagnostic levels using a variety of structural health monitoring (SHM) techniques, including acoustic emission and distributed strain sensing. Specifically, we develop diagnostic methods for localising and monitoring disbond growth after impact using strain data collected during fatigue testing of multiple single-stiffener panels and apply these for disbond monitoring in an upscaled version of a multi-stiffener panel. In this manner, this study aids in the maturement and application of SHM methodologies to realistic aircraft structures.
Subject
Aircraft
Composite structures
Damage diagnostics
Population
Upscaling
To reference this document use:
http://resolver.tudelft.nl/uuid:ef65aeeb-0372-41d7-89b7-89771a72708f
DOI
https://doi.org/10.1007/978-3-031-07258-1_98
Publisher
Springer
Embargo date
2023-01-01
ISBN
9783031072574
Source
European Workshop on Structural Health Monitoring - EWSHM 2022 - Volume 2
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, 254 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 Agnes A.R. Broer, N. Yue, Georgios Galanopoulos, R. Benedictus, Theodoros Loutas, D. Zarouchas