The book provides solutions, based on fundamental methods and models using the theory of wave propagation, nonlinear theories and composite mechanics for media with micro- and nanostructure. They include the models containing arrays of cracks, defects, with presence of micro- and nanosize piezoelectric elements and coupled physical-mechanical fields of different nature.
The investigations show that the analytical, numerical and experimental methods permit evaluation of the qualitative and quantitative properties of the materials of this sort, with diagnosis of their effective characteristics, frequency intervals of effective energetic cutting and passing, as well as effective regimes of damage evaluation by the acoustic methods.
Prof. Mezhlum Sumbatyan is a head of the Department of Computational and Theoretical Hydrodynamics, as well as a head of the Ultrasonic Laboratory, both in the Southern Federal University, Rostov-on-Don, Russia. He is a member of the National Russian Committee on Theoretical and Applied Mechanics, and a foreign member of the Armenian National Academy of Sciences.
His scientific interests are related to ultrasonic methods in evaluation of acoustic metamaterials, to identification of defects in solids on the basis of inverse problems, to numerical algorithms in direct and inverse problems of diffraction theory, as well as to mathematical modeling of acoustic filters of a periodic internal structure.