- Rapport
- Kärnkraft
Acoustic Emission Detection and Source Location
For this purpose, an array of microphones has been designed and developed by Doc. Peter Ulriksen from Lund University. The recorded signals have then been processed by Karim Haddad from Brüel & Kjær Sound & Vibration Measurement A/S. The processing consists in providing the localisation of a set of events.
The microphone array consists of 4 microphones arranged to locate an acoustic event in the 3D space. The processing is based on cross-correlations between pairs of microphones.
In total, 75 events have been analysed. A very large majority of localised events concern the top hemisphere above the position of the microphone array. A few numbers of events seem to be coming from the lower part, below the microphone array, but for these cases the results are less accurate.
Rapporter och publikationer
Här listas rapporter och resultatblad från programmet.
- Rapport
Determination of stresses in grouted strands of a reactor containment by a destructive test method
The aim of this study is to analyze prestressed bonded tendons obtained through the decommissioning of Barsebäck nuclear power plant, to better understand the factors that influence their performance.
|2025:1130Peter Lundqvist and Manouchehr Hassanzadeh, Sweco
- Rapport
Träinducerad korrosion på ingjuten tätplåt
Projektet har utfört labbstudier med syfte att närmare undersöka de fenomen som sker vid initiering av en aktiv/passiv-cell inducerad av en ingjuten träbit på tätplåt.
|2025:1123Jonas Engblom, Bertil Sandberg, Johan Ahlström
- Rapport
Shear Force Capacity of Existig Concrete Slabs, 2025:1102
Shear force capacity in concrete slabs is crucial for structural integrity, especially in nuclear power plants where safety and reliability are paramount. In several cases low or sometimes insufficient shear force capacities have been observed in structural analyses of existing concrete slabs using modern codes. Understanding shear force capacity and how it has been treated in earlier codes helps ensure durability and safety, preventing structural failures.
|2025:1102Lamis Ahmed
- Rapport
Nonlinear Ultrasonic Evaluation for Corrosion Assessment of Steel Plates Embedded in Concrete
This thesis evaluates nonlinear ultrasonic methods for detecting and assessing corrosion in embedded containment liners.
|2024:1022Markus Nilsson