The Effect of Pre-Bond Contamination by Thermal Degradation and De-Icing Fluid on the Tensile Strength of Scarf Composite Bonded Joints

The synergistic effect of pre-bond contamination by thermal degradation and de-icing fluid on the tensile behavior scarf composite bonded joints has been investigated experimentally. types considered are related to repair process aircraft structures. Three scenarios have considered: namely, (TD) a combination with two different levels (TD+DI1 TD+DI2). DI2 is more severe than DI1. Contamination applied one adherents while other intentionally left intact. Tension tests conducted single-lap shear specimens. experimental results were compared reference samples (REF) showing an increase in strength for TD specimens decrease TD+DI1 TD+DI2 After tension tests, failure surfaces evaluated get better insight mechanisms bondline assess contamination. presented increased cohesive which consistent load, combined caused again