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Information × Registration Number 0226U001356, (0124U000975) , R & D reports Title Development of mathematical models and methods for solving problems of dynamics and strength of single crystal alloys and metal-matrix composites. popup.stage_title Розробка методів знаходження ефективних властивостей метал-матричних композитів. Head Lvov Hennadii I., Доктор технічних наук Registration Date 24-01-2026 Organization National Technical University "Kharkiv Polytechnic Institute" popup.description1 Development of mathematical models of elasticity, plasticity and creep of monocrystalline alloys and metal-matrix composites. Creation of new methods of designing composite materials with the necessary parameters of anisotropy of physical properties based on the complex use of numerical methods of micromechanical analysis. Development of new methods for calculating the stress-strain state of structural elements from monocrystalline alloys under high-temperature static and dynamic loads. popup.description2 The objects of research are thermophysical, plastic properties of composite metal-matrix materials; mechanical behavior of structural elements made of these composites under the influence of high-temperature static and dynamic loads. The purpose of the work is to develop mathematical models for finding the effective properties of metal-matrix composites. Development of methods for calculating the stress-strain state of structural elements made of these composites under high-temperature static and dynamic loads. Research methods are methods for homogenization of composites based on micromechanical analysis. Methods for solving nonlinear problems of plasticity, dynamic strength of metal-matrix structural elements. A unified approach to numerical homogenization of thermophysical properties of metal-matrix composites has been developed. Three types of boron-aluminum composites of regular structure have been considered, the thermal analysis of which is performed at the microlevel, within a representative volume. The effective conductivity properties of the composite are based on the given reinforcement structure and known physical characteristics of the matrix and fibers. A micromechanical analysis of an orthogonally reinforced composite with new constitutive equations of kinematic plastic strengthening is presented. Homogenization of plastic properties is performed using numerical analysis of a representative volume by the finite element method. For an orthogonally reinforced boron-aluminum composite, all material parameters of the theory are determined, deformation diagrams are constructed, and equations for the plasticity surface are obtained. The dynamics and strength of bimetallic blades made of a composite based on an aluminum matrix with reinforcing elements made of boron carbide are investigated. The influence of the percentage of boron carbide on the dynamic properties of a bimaterial blade is estimated. Product Description popup.authors Volodymyr H. Martynenko Yurii V. Mikhlin Svitlana V. Radionova Viacheslav M. Burlaienko Liubov S. Ihlina popup.nrat_date 2026-01-24 Close