Recognition of composite disbonding using thermal camera

Abstract EN

To identifies disbondings, several non-destructive test methods, such as infrared thermography methods, are now widely used for non-destructive inspection and are suggested for assessing composite materials, mostly in the active variety.

The objective underlying thermography is to highlight crucial temperature variations by comparing the temperature of the defective region to the temperature of the sound area.

This study shows various experimental examples of the application of thermal camera in nondestructive assessments of composite materials.

The results of testing on E-glass woven (0,90) reinforced polymer laminates with eight plies and artificial disbondings/delamination are examined.

For this investigation, a large number of composite plates with varied known depths of disbonding implanted using aluminum foil covered with special wax at various locations.

The purpose of this article is to test the capacity of active thermal camera to identify disbonding depending on its location.

Thermal pictures collected from the experiment using an infrared camera were utilized to derive surface temperature profiles above the specimen's disbonded and non-disbonded surfaces.

The connection among temperature contrast and disbonding depth was examined.