Search academic texts

Information × Registration Number 0122U001718, ( 0223U002274  ) R & D request Title Boundary-integral modeling and grid-oriented methods for calculating the wave properties of elastic metamaterials Head Mykhaskiv Viktor V., Доктор фізико-математичних наук Registration Date 17-02-2022 Organization Institute of Applied Problems of Mechanics and Mathematics named after Ya. S. Pidstryhach of the National Academy of Sciences of Ukraine popup.description1 The purpose of research is obtaining the effective boundary-integral and T-matrix formulations of two- and three-dimensional problems of wave loading of elastic composite metamaterials with periodic arrays of thin-walled and nonclassically volumetric inclusions, in particular with an exhibition of their piezoelectric properties. Development of methods for numerical solution of equations of the proposed models based on physically justified decomposition of present Green's functions and parallelization of computation of discrete analogues matrix coefficients, which will provide high-performance numerical analysis of wave fields in space-frequency domain using grid technologies. Approbation of grid-oriented computational algorithms with detection of practically important effects of dynamic stress concentration in the vicinity of inclusions and phonon effects of penetration and blocking of elastic waves by planes and cascades of planes of periodic scatterers. popup.nrat_date 2024-12-09 Close