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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">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2024-25-4-239-249</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1861</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>История математики и приложений</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Сomputer science</subject></subj-group></article-categories><title-group><article-title>Расчет напряженно-деформированного состояния в предварительно нагруженном упругопластическом теле при последовательном образовании полостей на основе теории многократного наложения больших деформаций</article-title><trans-title-group xml:lang="en"><trans-title>Calculation of the stress-strain state in a pre-loaded elastoplastic body with the sequential formation of cavities based on the theory of repeated superposition of large deformations</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>Левин</surname><given-names>Владимир Анатольевич</given-names></name><name name-style="western" xml:lang="en"><surname>Levin</surname><given-names>Vladimir Anatol’evich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences, professor</p></bio><email xlink:type="simple">v.a.levin@mail.ru</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>Зингерман</surname><given-names>Константин Моисеевич</given-names></name><name name-style="western" xml:lang="en"><surname>Zingerman</surname><given-names>Konstantin Moiseevich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences, professor</p></bio><email xlink:type="simple">zingerman@rambler.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карцев</surname><given-names>Михаил Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Kartsev</surname><given-names>Mikhail Alexandrovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант</p></bio><bio xml:lang="en"><p>postgraduate student</p></bio><email xlink:type="simple">cartsev@cae-fidesys.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петровский</surname><given-names>Константин Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Petrovskii</surname><given-names>Konstantin Alexandrovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук</p></bio><bio xml:lang="en"><p>candidate of physical and mathematical sciences</p></bio><email xlink:type="simple">augus2s@rambler.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет им. М. В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Тверской государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tver State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Тульский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tula State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Московский государственный университет им. М.В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State 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>20</day><month>01</month><year>2025</year></pub-date><volume>25</volume><issue>4</issue><fpage>239</fpage><lpage>249</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Левин В.А., Зингерман К.М., Карцев М.А., Петровский К.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Левин В.А., Зингерман К.М., Карцев М.А., Петровский К.А.</copyright-holder><copyright-holder xml:lang="en">Levin V.A., Zingerman K.M., Kartsev M.A., Petrovskii K.A.</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://www.chebsbornik.ru/jour/article/view/1861">https://www.chebsbornik.ru/jour/article/view/1861</self-uri><abstract><p>Получено и исследовано численное решение задачи о напряженно-деформированном состоянии в теле из упругопластического материала при последовательном образовании в нем нескольких полостей после предварительного нагружения при конечных деформациях. Для моделирования пластичности использовано условие Мизеса и ассоциированный сэтим условием закон пластического течения. Приведена общая механическая постановка задачи на основе теории многократного наложения больших деформаций. Изложен общий алгоритм решения. Для решения использован метод конечных элементов и его модификация — метод спектральных элементов. Решение получено с использованием методов и алгоритмов системы инженерного прочностного анализа. Приведены некоторые результаты численных расчетов для плоской статической задачи о концентрации напряжений в окрестности трех эллиптических полостей, образованных в теле квадратного сечения, в случаеплоской деформации. Исследованы эффекты, обусловленные пластичностью, геометрической нелинейностью, перераспределением конечных деформаций. Выполнено сравнение результатов для случаев последовательного и одновременного образования полостей.</p></abstract><trans-abstract xml:lang="en"><p>A numerical solution to the problem of the stress-strain state in a body made of an elastoplastic material with the sequential formation of several cavities in it after preliminary loading at finite deformations has been obtained and studied. To model plasticity, the Mises condition and the law of plastic flow associated with this condition were used. A general mechanical formulation of the problem is given based on the theory of repeated superposition of large deformations. The general solution algorithm is outlined. To solve the problem, we used the finite element method and its modification — the spectral element method. The solution was obtained using methods and algorithms of the engineering strength analysis system. Some results of numerical calculations are presented for the plane static problem of stress concentration in the vicinity of three elliptical cavities formed in a body of square cross-section in the case of plane strain. Effects caused by plasticity, geometric nonlinearity, and redistribution of finitedeformations were studied. The results were compared for cases of sequential and simultaneous formation of cavities.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>упругопластический материал</kwd><kwd>многократное наложение больших деформаций</kwd><kwd>метод конечных элементов</kwd><kwd>метод спектральных элементов</kwd><kwd>концентрация напряжений около отверстий.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>elastoplastic material</kwd><kwd>repeated superposition of large deformations</kwd><kwd>finite element method</kwd><kwd>spectral element method</kwd><kwd>stress concentration near cavities.</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в Московском государственном университете им. М.В. Ломоносова при поддержке Рос- сийского научного фонда (проект 22-11-00110).</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">Мусхелишвили Н.И. 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