Experimental Investigation of Mechanical Behaviour of Hybrid Bolted/Bonded Joints for Aircraft

This thesis verifies the measurement technique, Digital Image Correlation (DIC), which is introduced to the research group for the first time. The DIC technique is verified with the axial extensometer by measuring displacement and strain fields from the simple aluminum test coupon. Additionally, the DIC technique with the instrumented bolt, which is the classic measurement technique to obtain shear load in the bolt, is examined in the bolted/bonded joint configuration. Lastly, the DIC technique is used to investigate the surface strain field changes in different joint configurations. Unique observations are made in each joint configuration, and are presented in this thesis.