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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">mathematics</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник российских университетов. Математика</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Universities Reports. Mathematics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2686-9667</issn><issn pub-type="epub">2782-3342</issn><publisher><publisher-name>Тамбовский государственный университет имени Г.Р. Державина</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20310/2686-9667-2024-29-146-188-203</article-id><article-id custom-type="elpub" pub-id-type="custom">mathematics-68</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>СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ARTICLES</subject></subj-group></article-categories><title-group><article-title>Математическое моделирование физических процессов в композиционных средах</article-title><trans-title-group xml:lang="en"><trans-title>Mathematical modeling of physical processes in composition media</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>Провоторов</surname><given-names>Вячеслав Васильевич</given-names></name><name name-style="western" xml:lang="en"><surname>Provotorov</surname><given-names>Vyacheslav V.</given-names></name></name-alternatives><email xlink:type="simple">wwprov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0195-4589</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сергеев</surname><given-names>Сергей Михайлович</given-names></name><name name-style="western" xml:lang="en"><surname>Sergeev</surname><given-names>Sergey M.</given-names></name></name-alternatives><email xlink:type="simple">sergeev2@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Воронежский государственный университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Voronezh State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГАОУ ВО «Санкт-Петербургский политехнический университет Петра Великого»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peter the Great St.Petersburg Polytechnic University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>26</day><month>06</month><year>2024</year></pub-date><volume>29</volume><issue>146</issue><fpage>188</fpage><lpage>203</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Провоторов В.В., Сергеев С.М., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Провоторов В.В., Сергеев С.М.</copyright-holder><copyright-holder xml:lang="en">Provotorov V.V., Sergeev S.M.</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://mathematics.elpub.ru/jour/article/view/68">https://mathematics.elpub.ru/jour/article/view/68</self-uri><abstract><p>Рассматривается достаточно часто встречающаяся в промышленной сфере сплошная среда, состоящая из совокупности слоев (фаз) — слоистой однонаправленной композиционной среды (композитов), и физические процессы в слоях — процессы переноса, волновые процессы и изменение напряженно-деформированного состояния этой среды. Осуществляется математическое описание структуры композиционной среды в терминах слоистой области, формируется соболевское пространство функций с носителем в слоистой области (вместе со вспомогательными пространствами) для описания количественных характеристик слоев и устанавливается слабая разрешимость соответствующих краевых задач. При этом в местах взаимного примыкания слоев определены условия, описывающие закономерности процесса переноса и волнового процесса, а также изменения напряженно-деформированного состояния и перемещения точек слоев. Работа состоит из трех частей. Первая часть содержит описание структуры композиционной среды, основные понятия и описание классических пространств функций с носителем в слоистой области. Вторая часть посвящена построению вспомогательных пространств для математического описания краевых задач процессов переноса и волнового процесса, получению достаточных условий их разрешимости. Третья часть содержит описание упругих свойств композиционной среды, формируется задача о напряженно-деформированном состоянии среды, для которой строится пространство допустимых решений, удовлетворяющих соотношениям, описывающим законы перемещения точек в местах примыкания слоев, устанавливаются условия слабой разрешимости указанной задачи. Результаты работы используются при анализе задач оптимизации физических процессов и явлений в композиционных материалах.</p></abstract><trans-abstract xml:lang="en"><p>A continuous medium, which is quite common in the industrial sphere, consisting of a set of layers (phases), i.e. a layered unidirectional composite medium (composites), and physical processes in the layers, i.e. transfer processes, wave processes, and changes in the stress-strain state of this this medium, is considered. A mathematical description of the structure of the compositional medium in terms of the layered domain is realized, a Sobolev space of functions with a carrier in the layered domain (together with auxiliary spaces) is constructed to describe the quantitative characteristics of the layers, and the weak solvability of the corresponding boundary value problems is established. At the same time, in the places of mutual adjacency of the layers, the conditions describing the regularities of the transfer process and the wave process, as well as changes in the stress-strain state and the displacement of layer points were determined. The work consists of three parts. The first part contains a description of the structure of the compositional medium, the basic concepts, and a description of the classical spaces of functions with a carrier in the layered domain. The second part is devoted to the construction of auxiliary spaces for the mathematical description of boundary problems of the processes of transfer and wave process, and to obtaining sufficient conditions for their solvability. The third part contains a description of the elastic properties of the composite medium, the problem of stress-strain is formulated for which the space of admissible solutions satisfying the relations describing the laws of displacement of points at the junctions of layers is constructed, the conditions of weak solvability of the specified problem are established. The results of the work are used in the analysis of problems of optimization of physical processes and phenomena in composite materials.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>композиционная среда</kwd><kwd>слоистая область</kwd><kwd>процессы переноса</kwd><kwd>волновые процессы</kwd><kwd>напряженно-деформированное состояние композиционных материалов</kwd><kwd>слабая разрешимость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>composite medium</kwd><kwd>layered domain</kwd><kwd>transfer processes</kwd><kwd>wave processes</kwd><kwd>stress-strain state of composition materials</kwd><kwd>weak solvability</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">V.G. Litvinov, Optimization in Elliptic Boundary Value Problems with Applications to Mechanics, Nauka Publ., Moscow, 1987 (In Russian), 368 pp.</mixed-citation><mixed-citation xml:lang="en">V.G. 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