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Deformation measurement within adhesive bonds of aluminium and CFRP using advanced fibre optic sensors

ORCID
0000-0003-1648-9309
Affiliation
Institute of Joining and Welding, Technische Universitaet Braunschweig
Grefe, Hinrich;
Affiliation
Institute of Joining and Welding, Technische Universitaet Braunschweig
Weiser, Dennis;
Affiliation
Institute of Joining and Welding, Technische Universitaet Braunschweig
Kandula, Maja Wanda;
ORCID
0000-0002-6139-4993
Affiliation
Institute of Joining and Welding, Technische Universitaet Braunschweig
Dilger, Klaus

Monitoring the deformation within an adhesive joint during the curing cycle provides valuable information regarding the build-up of thermal strain and stress. Distributed fibre optic sensors are very useful for spatial continuous measurements of deformation or temperature. Integrated into a hybrid joint, the thermal curing process of the adhesive can be monitored. This detailed insight into the joint helps to understand the deformation and thereby also the resulting stress. Analysing the deformation process establishes the foundation to adapt techniques to reduce the thermally induced deformation and thereby the resulting stress.

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