Structural health monitoring data fusion for in-situ life prognosis of composite structures

Nick Eleftheroglou*, Dimitrios Zarouchas, Theodoros Loutas, Rene Alderliesten, Rinze Benedictus

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

63 Citations (Scopus)
82 Downloads (Pure)


A novel framework to fuse structural health monitoring (SHM) data from different in-situ monitoring techniques is proposed aiming to develop a hyper-feature towards more effective prognostics. A state-of-the-art Non-Homogenous Hidden Semi Markov Model (NHHSMM) is utilized to model the damage accumulation of composite structures, subjected to fatigue loading, and estimate the remaining useful life (RUL) using conventional as well as fused SHM data. Acoustic Emission (AE) and Digital Image Correlation (DIC) are the selected in-situ SHM techniques. The proposed methodology is applied to open hole carbon/epoxy specimens under fatigue loading. RUL estimations utilizing features extracted from each SHM technique and after data fusion are compared, via established and newly proposed prognostic performance metrics.
Original languageEnglish
Pages (from-to)40-54
Number of pages15
JournalReliability Engineering and System Safety
Publication statusPublished - 1 Oct 2018

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project 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.


  • Composite structures
  • Data fusion
  • Prognostic performance metrics
  • Remaining useful life
  • Structural health monitoring


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