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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">mathnas</journal-id><journal-title-group><journal-title xml:lang="ru">Труды Института математики НАН Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Institute of Mathematics of the NAS of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1812-5093</issn><publisher><publisher-name>Институт математики НАН Беларуси</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.67268/1812-5093-2026-34-1-96-117</article-id><article-id custom-type="edn" pub-id-type="custom">YYKKVT</article-id><article-id custom-type="elpub" pub-id-type="custom">mathnas-143</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ И ЧИСЛЕННЫЕ МЕТОДЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICAL MODELING AND NUMERICAL METHODS</subject></subj-group></article-categories><title-group><article-title>Численный метод для нахождения эффективного модуля Юнга композиционных порошковых материалов</article-title><trans-title-group xml:lang="en"><trans-title>Numerical method for finding the effective Young’s modulus of composite powder materials</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Громыко</surname><given-names>Г. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Gromyko</surname><given-names>G. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><email xlink:type="simple">grom@im.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Авлас</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Aulas</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><email xlink:type="simple">aulas@im.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт математики НАН Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Mathematics of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2026</year></pub-date><volume>34</volume><issue>1</issue><fpage>96</fpage><lpage>117</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Громыко Г.Ф., Авлас А.Н., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Громыко Г.Ф., Авлас А.Н.</copyright-holder><copyright-holder xml:lang="en">Gromyko G.F., Aulas A.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://mathnas.ejournal.by/jour/article/view/143">https://mathnas.ejournal.by/jour/article/view/143</self-uri><abstract><p>Статья посвящена разработке вычислительной методики для определения эффективного модуля Юнга композиционных порошковых материалов на основе анализа их микроструктуры. Предлагаемый подход включает построение двумерной геометрической модели микроструктуры композита в виде ячейки периодичности, формулировку математической модели, имитирующей физический эксперимент на растяжение-сжатие представительного объема, и численную реализацию методом контрольного объема на структурированных четырехугольных сетках. Учитываются свойства матрицы и включений, их объемное содержание и форма. Эффективный модуль упругости вычисляется на основе энергетического баланса: работа внешних сил приравнивается к сумме энергий деформации всех ячеек сетки. Приведены результаты вычислительных экспериментов для композитов на основе меди с включениями карбида вольфрама и тефлона, а также для градиентных покрытий на основе NiCr с добавлением TiC. Показано, что методика позволяет прогнозировать изменение модуля упругости в зависимости от объемной доли наполнителя и может быть использована при проектировании слоистых износостойких покрытий.</p></abstract><trans-abstract xml:lang="en"><p>The article focuses on the development of a computational procedure for determining the effective Young’s modulus of composite powder materials based on the analysis of their microstructure. The proposed approach includes constructing a two-dimensional geometric model of the composite microstructure as a periodicity cell, formulating a mathematical model that simulates a physical tension–compression test of a representative volume element, and performing numerical implementation using the control volume method on structured quadrilateral grids. The properties of the matrix and inclusions, their volume fractions, and morphology are taken into account. The effective elastic modulus is calculated based on an energy balance: the work done by external forces is equated to the sum of the strain energies of all grid cells. The results of computational experiments are presented for copper-matrix composites with tungsten carbide and Teflon inclusions, as well as for NiCr-based gradient coatings with TiC additives. It is shown that the procedure allows predicting the variation of the elastic modulus as a function of the filler volume fraction and can be used in the design of layered wear-resistant coatings.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>композиционные порошковые материалы</kwd><kwd>эффективный модуль упругости</kwd><kwd>метод контрольного объема</kwd><kwd>численное моделирование</kwd><kwd>ячейка периодичности</kwd><kwd>представительный объем</kwd><kwd>напряженно-деформированное состояние</kwd><kwd>градиентные покрытия</kwd><kwd>механика деформируемого твердого тела</kwd></kwd-group><kwd-group xml:lang="en"><kwd>composite powder materials</kwd><kwd>effective elastic modulus</kwd><kwd>control volume method</kwd><kwd>numerical simulation</kwd><kwd>periodicity cell</kwd><kwd>representative volume element</kwd><kwd>stress-strain state</kwd><kwd>gradient coatings</kwd><kwd>solid mechanics.</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Xiao-Su Yi, Shanyi Du, Litong Zhang. 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