To the question of the vibroacoustic methodology for the development of carbon plastics’ diagnostics

Abstract

Abstract This article describes in detail the process of creating panels from a composite material by the method of vacuum infusion with various types of defects pre-installed in them. The most common types of defects that can arise in parts made of composite materials as a result of a violation of the technological process, the presence of defects in the original material, in particular, reinforcing fabric, as well as defects associated with the low qualification of the master are considered. The creation of such prototypes is necessary for the development of quality control methods for products made of composite materials. A vibroacoustic diagnostic method based on the passage of acoustic waves through a composite product is considered. It is shown that it is possible to estimate the size of a defect and the depth of its occurrence in a composite material by changing the intrinsic frequency characteristics of the wave field. Experimental data on diagnosing panels with defects is presented.