Study of a method for controlling the structural integrity of monolithic polycarbonate under cyclic loads

The study of a method for controlling the structural integrity of monolithic polycarbonate under cyclic loads is presented in the article. In particular, the influence of external cyclic loads on crack formation in polycarbonate was determined. The carried out experimental studies have shown the structural changes in polycarbonate (the appearance of microdefects) can be detected by a decrease in the level of the piezoelectric voltage amplitude U compared to the initial level by ∼25% for more than 104 load cycles.