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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Petrov, R. H. | Madrid |
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| Azevedo, Nuno Monteiro |
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| Rignanese, Gian-Marco |
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Malinowski, Paweł
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024A Novel Objective Method for Steel Degradation Rate Evaluation
- 2022Multi step structural health monitoring approaches in debonding assessment in a sandwich honeycomb composite structure using ultrasonic guided wavescitations
- 2022Electromechanical impedance based debond localisation in a composite sandwich structurecitations
- 2021Extended Non-destructive Testing for the Bondline Quality Assessment of Aircraft Composite Structurescitations
- 2021Extended Non-destructive Testing for the Bondline Quality Assessment of Aircraft Composite Structurescitations
- 2021Introduction to Recent Advances in Quality Assessment for Adhesive Bonding Technologycitations
- 2021Extended Non-destructive Testing for Surface Quality Assessmentcitations
- 2019Ultrasonic guided wave propagation in a repaired stiffened composite panelcitations
- 2015Embedded Damage Localization Subsystem Based on Elastic Wave Propagationcitations
- 2013Embedded Signal Processing Subsystem for SHM
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article
Electromechanical impedance based debond localisation in a composite sandwich structure
Abstract
<p>An electromechanical impedance (EMI) based structural health monitoring (SHM) approach is proposed for the localisation of skin-core debonds in composite sandwich structure (CSS). Towards this, laboratory experiments and numerical simulations of EMI in a CSS with core to bottom face-sheet debond have been carried out using a network of piezoelectric transducers (PZTs). The frequency-domain analysis of the registered EMI signals shows that the presence of inter-facial debonds in the CSS significantly influences the conductance magnitudes of the registered EMI data. It was also noticed that the conductance magnitudes of the signals are dependent on the debond-to-PZT distances. In all the study cases, an agreement between the simulation and experimental results is observed. Eventually, a simulated SHM approach is proposed that uses a debond detection algorithm to calculate the changes in conductance magnitudes to effectively locate such debonds in CSS. The study is further extended for the detection of debonds at different locations in the CSS, including a debond located at the edge to assess the potential of the proposed SHM approach.</p>