The paper is devoted to the study of political debates in the mass media on Ukraine's foreign policy choice. The political debate in the mass media about the foreign policy choice today concerns not only the existential dilemma of the Ukrainian establishment "East -West", which has its roots in history. Ukraine's foreign policy choice defines European and Euro-Atlantic integration at the level of consensus of the ruling class, it is enshrined in the legal field. Strategic choice is made. The focus of the political debate is the requirement of rational justification of the steps' sequence and the combination of political, legal and economic dimensions of integration, the realization of national interest. Without political debate in the mass media, it is impossible to solve the dilemmas of foreign policy choice: 1) regarding the connection between European and Euro-Atlantic integration (their pace, priority, level of interconnection and mutual conditionality); 2) on the national and local level of interaction, determining the role of public diplomacy and local self-government in the process of European integration; 3) on globalism and national interest. The main challenges that hinder the development of political debates in the mass media have been identified: the mediatization of politics, the oligarchic model of the Ukrainian mass media, the distortion of political discussions during media shows and the reduction of political competition to media scandals. The main difficulty is that the subject of rational political debate in the mass media during all the years of independence has not been to determine the essence of national interest, and hencethe directions of its implementation and protection in the process of European and Euro-Atlantic integration.

вісесиметрична; зв'язок між напруженнями та деформаціями описується законом Гука; розглядається гексагональна укладка волокон в односпрямованому композиті. Проаналізовано вплив наявності перехідного шару на величину ефективного поздовжнього модуля пружності. Залежність поздовжнього модуля пружності від об'ємної частки перехідного шару відповідно має зростаючий характер, що узгоджується з фізичним змістом цих показників.

A method for determining effective elastic constants of a composite unidirectionally reinforced with two types of transtropic hollow fibers is developed. Determining these characteristics is an integral step in the design of composite structures. The approach is based on analytical formulas for determining the elastic characteristics of a two-component composite with a transtropic matrix and hollow fiber. Hexagonal fiber lay-up with periodic reinforcement structure is considered. Double homogenization is used. The composite is conventionally divided into hexagonal regions of two types. The first is a hollow fiber of one material and the surrounding matrix. Similarly, the second one – with a hollow fiber of another material. In the first homogenization, elastic constants of the transtropic material of each of the two regions are determined. In the repeated homogenization, the region of the first type is taken as a “conditional” fiber, the region of the second type is taken as a “conditional” matrix. Effective elastic constants for a composite reinforced with two types of isotropic hollow fibers are calculated. The proposed method gives a good convergence of the results with calculations by known formulas. The maximum relative calculation error for the longitudinal elastic characteristics compared to known formulas does not exceed 0.05 %. The dependences of some effective elastic constants on the volume content of hollow fibers of various types are constructed. Using this approach, three-component composites can be modeled varying the materials of the matrix, hollow fibers and their volume content. This allows predicting the strength of such composites under certain deformations at the design stage