Distributed strain measurements in a historical brick masonry wall
This unique research was performed at the Cracow University of Technology. Even though it was a laboratory test, the lessons learned will be beneficial during the monitoring and maintaining the real brick masonry walls of the barracks located in Auschwitz Birkenau camp. Thus, the project is of significant historical meaning. DFOS strain sensors were used to monitor the wall response (built with all imperfections corresponding to the actual state) during mechanical load tests.
DFOS Sensors Installed: Optical fibre in acrylate coating
Project challenges
Benefits of using the DFOS monitoring system
Results of using the DFOS monitoring system
DFOS strain sensors were glued to the surface of the brick masonry wall using two-component epoxy. Eight measurement sections were formed on both sides for detailed structural response control during the mechanical load test. By means of hydraulic jacks, an attempt was made to bring the deformed wall back upright.
Thanks to the precise and high spatial resolution strain measurements, it was possible to identify the weakest areas and calculate horizontal displacements (shape changes).
Thanks to the precise and high spatial resolution strain measurements, it was possible to identify the weakest areas and calculate horizontal displacements (shape changes).
Example results
Recomendations (optional)
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John Doe
Project partner
