Fuzzy Logic in Non-Destructive Testing of Aerospace Structures

Abstract—In nondestructive testing, to locate the faults, we send an ultrasonic signal and measure the resulting vibration at different points. To describe and combine the uncertainty corresponding to differ-ent measurements and fuzzy estimates, we used fuzzy logic. As a result, we get reasonably simple computa-tional models which lead to as good fault detection as the known more complicated models. I. Nondestructive Testing Is Important One of the most important characteristics of the plane is its weight: every pound shaved off the plane means a pound added to the carrying ability of this plane. As a re-sult, planes are made as light as possible, with their “skin” as thin as possible. However, the thinner the layer, the more vulnerable is the resulting structure to stresses an