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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">techusgu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Юго-Западного государственного университета. Серия: Техника и технологии</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Southwest State University. Series: Engineering and Technology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-1528</issn><publisher><publisher-name>Юго-Западный государственный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21869/2223-1528-2024-14-4-115-130</article-id><article-id custom-type="elpub" pub-id-type="custom">techusgu-283</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>ФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICS</subject></subj-group></article-categories><title-group><article-title>Магнитоупругие свойства в изотропных магнитных эластомерах</article-title><trans-title-group xml:lang="en"><trans-title>Magnetoelastic properties in isotropic magnetic elastomers</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7588-5697</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мусихин</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Musikhin</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мусихин Антон Юрьевич - кандидат физико-математических наук, доцент кафедры теоретической и математической физики.</p><p>ул. Ленина, д. 51, Екатеринбург 620002</p></bio><bio xml:lang="en"><p>Anton Y. Musikhin - Candidate of Sciences (Physics and Mathematics), Associate Professor of the Department of Theoretical and Mathematical Physics, Ural Federal University named after the first President of Russia B.N. Yeltsin.</p><p>51 Lenin Str., Yekaterinburg 620002</p></bio><email xlink:type="simple">Antoniusmagna@yandex.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/0000-0002-0259-4995</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зубарев</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Zubarev</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зубарев Андрей Юрьевич - доктор физико-математических наук, профессор, профессор кафедры теоретической и математической физики.</p><p>ул. Ленина, д. 51, Екатеринбург 620002</p></bio><bio xml:lang="en"><p>Andrey Y. Zubarev - Doctor of Sciences (Physics and Mathematics), Professor, Professor of the Department of Theoretical and Mathematical Physics, Ural Federal University named after the first President of Russia B.N. Yeltsin.</p><p>51 Lenin Str., Yekaterinburg 620002</p></bio><email xlink:type="simple">A.J.Zubarev@urfu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский федеральный университет имени первого Президента России Б.Н. Ельцина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural Federal University named after the first President of Russia B.N. Yeltsin</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>13</day><month>12</month><year>2024</year></pub-date><volume>14</volume><issue>4</issue><fpage>115</fpage><lpage>130</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мусихин А.Ю., Зубарев А.Ю., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Мусихин А.Ю., Зубарев А.Ю.</copyright-holder><copyright-holder xml:lang="en">Musikhin A.Y., Zubarev A.Y.</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://techusgu.elpub.ru/jour/article/view/283">https://techusgu.elpub.ru/jour/article/view/283</self-uri><abstract><sec><title>Цель</title><p>Цель. Исследовать влияние магнитного поля на упругие характеристики изотропного магнитного эластомера.</p></sec><sec><title>Методы</title><p>Методы. Поведение магнитных частиц в образце исследовалось на основе идеи иерархической модели формирования цепочек, совмещенной с решеточной моделью расположения частиц. При исследовании систем с цепочечными агрегатами вводилась статистическая функция распределения по числу частиц в цепочке, которая позволила рассчитать количество цепочек в композите с заданной концентрацией частиц. Нелинейная намагниченность частиц в образце моделировалась в виде полуэмпирического закона Фрелиха - Кенели, позволившего с хорошей точностью рассчитать намагниченность материалов, как в слабых, так и в сильных магнитных полях.</p></sec><sec><title>Результаты</title><p>Результаты. В работе представлена модель, описывающая упругие свойства изотропного магнитного эластомера, который синтезируется без воздействия магнитного поля. Эластомер состоит из частиц с объемной концентрацией 28,6%, способных к намагничиванию, размер которых составляет 10 мк. Эти частицы внедрены в полимерную матрицу. Под действием магнитного поля в полимере формируются цепочки из магнитных частиц. Предполагается, что длина таких цепочек меньше размеров образца в направлении поля. Определены зависимости модуля сдвига композита от внешнего магнитного поля.</p></sec><sec><title>Вывод</title><p>Вывод. Предложена физическая модель, которая успешно предсказывает магнитореологический эффект в исследуемом композитном материале с мягкой матрицей и хаотично распределенными частицами, синтезированном без магнитного поля. Исследования базируются на усовершенствованной решеточной теории, учитывающей вероятностное распределение частиц, обусловленное процессом полимеризации композита. Предложен иерархический принцип формирования цепочек частиц, где их количество удваивается на каждом этапе. Установлено, что именно цепочки такой длины вносят основной вклад в макроскопический модуль сдвига композита. Соответствие теоретических результатов и экспериментальных данных подтверждает адекватность предложенной модели для описания поведения магнитного эластомера во внешнем магнитном поле.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose</title><p>Purpose. To investigate the influence of magnetic field on the elastic characteristics of isotropic magnetic elastomer.</p></sec><sec><title>Methods</title><p>Methods. The behavior of magnetic particles in the sample was studied based on the idea of a hierarchical model of chain formation combined with a lattice model of particle arrangement. When studying systems with chain aggregates, a statistical distribution function was introduced for the number of particles in a chain, which made it possible to calculate the number of chains in a composite with a given particle concentration. The nonlinear magnetization of particles in the sample was modeled in the form of the semi-empirical Frohlich-Kaenely law, which made it possible to calculate the magnetization of materials with good accuracy, both in weak and strong magnetic fields.</p></sec><sec><title>Results</title><p>Results. The paper presents a model describing the elastic properties of an isotropic magnetic elastomer synthesized without the effect of a magnetic field. The elastomer consists of particles with a volume concentration of 28.6%, capable of magnetization, the size of which is 10 microns. These particles are embedded in a polymer matrix. Under the action of a magnetic field, chains of magnetic particles are formed in the polymer. It is assumed that the length of such chains is less than the size of the sample in the direction of the field. The dependences of the shear modulus of the composite on the external magnetic field are determined.</p></sec><sec><title>Conclusion</title><p>Conclusion. A physical model is proposed that successfully predicts the magnetorheological effect in the studied composite material with a soft matrix and randomly distributed particles synthesized without a magnetic field. The research is based on an improved lattice theory that takes into account the probabilistic distribution of particles due to the polymerization process of the composite. A hierarchical principle of forming particle chains is proposed, where their number doubles at each stage. It has been established that chains of such length make the main contribution to the macroscopic shear modulus of the composite. The agreement between theoretical results and experimental data confirms the adequacy of the proposed model for describing the behavior of a magnetic elastomer in an external magnetic field.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>магнитоактивные эластомеры</kwd><kwd>модуль сдвига</kwd><kwd>магнитореологический эффект</kwd></kwd-group><kwd-group xml:lang="en"><kwd>magnetoactive elastomers</kwd><kwd>shear modulus</kwd><kwd>magnetorheological effect</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках реализации проекта Российского научного фонда (Соглашения № 23-72-01012).</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of the project of the Russian Scientific Foundation (Agreement No. 23-72-01012).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Advances in magnetic materials / G.V. 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