| description: |
To ensure functioning of the industrial pipeworks the systematic control of their integrity and cleanness is needed. To detect and identify different flaws different Lamb wave types are suitable, and they are planned to be used in non-destructive control. The study is concerned with the Lamb-type wave interaction with solid deposition or plugging. The purpose of the study is a generation of such a wave type which helps to detect solid deposition or corrosion in fluid-filled pipe. The emitted signal must be possibly less attenuated, measured signals should have simple structure and easily identified in spite of the presence of multiple line types. It is important to study the sensitivity of the different wave types to the structural inhomogeneity like flaw, solid deposition and corrosion. As the higher Lamb modes interaction with internal structural inhomogeneities is not well studied, the experimental study and numerical simulation is needed. Jointly with the Laboratory of Ultrasonics and Electronics (LAUE) of the University of Le Havre it is planned to participate in creation of a prototype transducer for guided wave generation in pipes for needs of the non-destructive evaluation. |