<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">10.22405/2226-8383-2022-23-4-272-284</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1394</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>Оценка сходимости метода спектральных элементов в CAE Fidesys на основе точного решения задачи Ламе для упругопластических материалов с помощью системы регрессионного автоматизированного тестирования</article-title><trans-title-group xml:lang="en"><trans-title>Estimation of convergence of spectral element method in CAE Fidesys based on exact solution of the Lame problem for elastoplastic materials using an automated regression testing system</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>Козлов</surname><given-names>Виктор Вячеславович</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlov</surname><given-names>Viktor Vyacheslavovich</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">vvkozlovtsu@mail.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>Комолова</surname><given-names>Елена Дмитриевна</given-names></name><name name-style="western" xml:lang="en"><surname>Komolova</surname><given-names>Elena Dmitrievna</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">komolova@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>Филатова</surname><given-names>Александра Вячеславовна</given-names></name><name name-style="western" xml:lang="en"><surname>Filatova</surname><given-names>Alexandra Vyacheslavovna</given-names></name></name-alternatives><email xlink:type="simple">filatova@cae-fidesys.com</email><xref ref-type="aff" rid="aff-4"/></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 Aleksandrovich</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.mikhail@yandex.ru</email><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет имени 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>Тульский государственный университет; Московский государственный университет имени М. В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tula State University (Tula); Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Московский государственный университет имени М. В. Ломоносова; ООО «Фидесис»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University; Fidesys LLC</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ООО «Фидесис»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Fidesis LLC</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><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><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>16</day><month>01</month><year>2023</year></pub-date><volume>23</volume><issue>4</issue><fpage>272</fpage><lpage>284</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Левин В.А., Козлов В.В., Комолова Е.Д., Филатова А.В., Карцев М.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Левин В.А., Козлов В.В., Комолова Е.Д., Филатова А.В., Карцев М.А.</copyright-holder><copyright-holder xml:lang="en">Levin V.A., Kozlov V.V., Komolova E.D., Filatova A.V., Kartsev M.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/1394">https://www.chebsbornik.ru/jour/article/view/1394</self-uri><abstract><p>В статье рассмотрена оценка сходимости метода спектральных элементов, реализованного в CAE Fidesys, на основе точных аналитических решений задачи Ламе при малых деформациях в упругой постановке, а также в упругопластической постановке с использованием критерия Мизеса в рамках теории идеально пластического течения. Ввиду симметрии рассматривались четверти моделей. Численные результаты получены в пакете дляпрочностных расчетов CAE Fidesys с помощью метода конечных элементов первого и второго порядка и метода спектральных элементов третьего - девятого порядка. На основании полученных результатов осуществлен анализ об определении характера уменьшения погрешностей метода спектральных элементов CAE Fidesys при повышении порядка элементов. Исследование проводилось с помощью специализированной системы регрессионного автоматизированного тестирования. Результаты работы могут быть полезны при принятии решения об использовании метода спектральных элементов в промышленных расчетах.</p></abstract><trans-abstract xml:lang="en"><p>This paper considers convergence estimation of the spectral element method implemented in CAE Fidesys. It was based on exact analytical solutions of the Lame problems in small deformations in the elastic and elastic-perfectly plastic obeying Huber-von Mises yield criterionformulations. Due to the symmetry, we consider quarters of the models. Numerical results were obtained in the CAE Fidesys strength analysis system using the finite element method for the first and second orders and the spectral element method for the third to ninth orders. Based on the results obtained, an analysis was carried out to determine the nature of the decrease in the errors of the CAE Fidesys spectral element method with an increase in the order of theelements. The study was conducted using a specialized automated testing system. The results of the work can be useful in making a decision on the use of the spectral element method in industrial calculations.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>автоматизированная система тестирования</kwd><kwd>автотесты</kwd><kwd>метод ко- нечных элементов</kwd><kwd>метод спектральных элементов</kwd><kwd>экспоненциальная сходимость</kwd><kwd>CAE Fidesys</kwd><kwd>упругопластическая модель</kwd><kwd>задача Ламе</kwd><kwd>криволинейные границы.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>automated testing system</kwd><kwd>autotests</kwd><kwd>finite element method</kwd><kwd>spectral element method</kwd><kwd>exponential convergence</kwd><kwd>CAE Fidesys</kwd><kwd>elastoplastic model</kwd><kwd>Lame problem</kwd><kwd>curvilinear boundaries.</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке грантов Российского научного фонда: проект №19-71- 10008 (анализ изменения погрешностей численных решений при изменении порядка элементов), №22-11-00110 (получение аналитических решений задач Ламе).</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">Левин В. А., Зингерман К. М., Яковлев М. Я., Курденкова Е. О., Немтинова Д. В. О</mixed-citation><mixed-citation xml:lang="en">Levin, V. A., Zingerman, K. M., Yakovlev, M.Ya., Kurdenkova, E. O., Nemtinova, D. V. 2019,</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">численной оценке эффективных характеристик периодических ячеистых структур с ис-</mixed-citation><mixed-citation xml:lang="en">“On the numerical estimation of the effective characteristics of periodic cellular structures using</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">пользованием балочных и оболочечных конечных элементов с помощью CAE Fidesys</mixed-citation><mixed-citation xml:lang="en">beam and shell finite elements using CAE Fidesys“, Chebyshevskii sbornik, vol. 20, no. 2, pp.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">// Чебышевский сборник. 2019. Т. 20, №2. С. 528-541. http://doi.org/10.22405/</mixed-citation><mixed-citation xml:lang="en">-541. http://doi.org/10.22405/2226-8383-2019-20-2-528-541</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">-8383-2019-20-2-528-541</mixed-citation><mixed-citation xml:lang="en">Vershinin, A. V., Zingerman, K. M., Konovalov, D. A., Levin, V. An. 2019, “Numerical modeling</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Вершинин А. В., Зингерман К. М., Коновалов Д. А., Левин В. Ан. Численное моделирова-</mixed-citation><mixed-citation xml:lang="en">in CAE Fidesys of the additive manufacturing process based on the method of spectral elements</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">ние в CAE Fidesys процесса аддитивного производства на основе метода спектральных</mixed-citation><mixed-citation xml:lang="en">on nonconformal grids“, Modern problems of mathematics and mechanics. Proceedings of the</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">элементов на неконформных сетках // Современные проблемы математики и механики.</mixed-citation><mixed-citation xml:lang="en">international conference dedicated to the 80th anniversary of Academician V. A. Sadovnichy,</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Материалы международной конференции, посвященной 80-летию академика В. А. Садов-</mixed-citation><mixed-citation xml:lang="en">vol. 2, pp. 642-647.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">ничего. 2019. Т. 2. С. 642-647.</mixed-citation><mixed-citation xml:lang="en">Levin, V. A. 2017, “The theory of multiple imposition of large deformations, development for</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Левин В. А. Теория многократного наложения больших деформаций, развитие для реше-</mixed-citation><mixed-citation xml:lang="en">solving interdisciplinary problems. Ways of its implementation in the Fidesys package for</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">ния междисциплинарных задач. Пути ее реализации в пакете Фидесис для проведения</mixed-citation><mixed-citation xml:lang="en">carrying out strength analysis in new industries“, Chebyshevskii sbornik, vol. 18, no. 3, pp.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">прочностного анализа в новых отраслях промышленности // Чебышевский сборник. 2017.</mixed-citation><mixed-citation xml:lang="en">-537. https://doi.org/10.22405/2226-8383-2017-18-3-524-542</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Т. 18, №3. С. 518-537. https://doi.org/10.22405/2226-8383-2017-18-3-524-542</mixed-citation><mixed-citation xml:lang="en">Kukushkin, A. V., Konovalov, D. A., Vershinin, A. V., Levin, V. A. 2019, “Numerical simulation</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Kukushkin A. V., Konovalov D. A., Vershinin A. V., Levin V. A. Numerical simulation in CAE</mixed-citation><mixed-citation xml:lang="en">in CAE Fidesys of bonded contact problems on non-conformal meshes“, Journal of Physics:</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Fidesys of bonded contact problems on non-conformal meshes // Journal of Physics: Conference</mixed-citation><mixed-citation xml:lang="en">Conference Series, vol. 1158, no. 2, pp. 032022. https://doi.org/10.1088/1742-6596/1158/</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Series. 2019. Vol. 1158, № 2. P. 032022. https://doi.org/10.1088/1742-6596/1158/3/032022</mixed-citation><mixed-citation xml:lang="en">/032022</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Официальный сайт ООО «Фидесис». URL: https://www.cae-fidesys.com/documentation</mixed-citation><mixed-citation xml:lang="en">Official site of Fidesys LLC. URL: https://www.cae-fidesys.com/documentation (accessed</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">(дата обращения 15.09.2022)</mixed-citation><mixed-citation xml:lang="en">/15/2022)</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Морозов Е. М., Левин В. А., Вершинин А. В. Прочностной анализ: Фидесис в руках инже-</mixed-citation><mixed-citation xml:lang="en">Morozov, E. M., Levin, V. A., Vershinin, A. V. 2015, Prochnostnoy analiz: Fidesys v rukakh</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">нера. М.: ЛЕНАНД. 2015. 408 с.</mixed-citation><mixed-citation xml:lang="en">inzhenera [Strength analysis: Fidesys in the hands of an engineer], LENAND, Moscow, Russia.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Горбаченко И. М. Оценка качества программного обеспечения для создания систем тести-</mixed-citation><mixed-citation xml:lang="en">Gorbachenko, I. M. 2013, “Quality assessment of software for creating testing systems“,</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">рования // Фундаментальные исследования. 2013. № 6-4. C. 823-827.</mixed-citation><mixed-citation xml:lang="en">Fundamental research, no. 6-4, pp. 823-827.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Прохоренок Н.А. Python 3 и PyQt. Разработка приложений. СПб.: БХВ-Петербург. 2012.</mixed-citation><mixed-citation xml:lang="en">Prokhorenok, N. A. 2012, Python 3 i PyQt. Razrabotka prilozheniy [Python 3 and PyQt.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">с.</mixed-citation><mixed-citation xml:lang="en">Application Development], BHV-Petersburg, St. Petersburg, Russia.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Маккини У. Python и анализ данных / пер. с анг. А. А. Слинкина. М.: ДМК Пресс. 2020.</mixed-citation><mixed-citation xml:lang="en">Mackini, W. 2020, Python i analiz dannykh [Python and data analysis], Translated by Slinkina,</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">с.</mixed-citation><mixed-citation xml:lang="en">A. A, DMK Press, Moscow, Russia.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Калиткин Н. Н. Численные методы. М.: Высш. Шк. 1976. 398 с.</mixed-citation><mixed-citation xml:lang="en">Kalitkin, N. N. 1976, Chislennyye metody [Numerical methods], Higher. school, Moscow, Russia.</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Амосов А. А. Вычислительные методы для инженеров: учеб. пособие / А.А. Амосов,</mixed-citation><mixed-citation xml:lang="en">Amosov, A. A., Dubinsky, Yu. A., Kopchenov, N. V. 1994, Vychislitel’nyye metody dlya inzhenerov:</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Ю.А. Дубинский, Н. В. Копченова. М.: Высш. шк. 1994. 544 с.</mixed-citation><mixed-citation xml:lang="en">ucheb. posobiye [Computational methods for engineers: textbook], Higher. school,</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Zienkiewicz O. C., Taylor R. L., Zhu J. Z. The Finite Element Method: Its Basis and Fundamentals</mixed-citation><mixed-citation xml:lang="en">Moscow, Russia.</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">th edition // Butterworth-Heinemann, Oxford, United Kingdom. 2013. P. 756.</mixed-citation><mixed-citation xml:lang="en">Zienkiewicz, O. C., Taylor, R. L., Zhu, J. Z. 2013, The Finite Element Method: Its Basis and</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">https://doi.org/10.1016/C2009-0-24909-9</mixed-citation><mixed-citation xml:lang="en">Fundamentals 7th edition, Butterworth-Heinemann, Oxford, United Kingdom. https://doi.</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Fish J., Belutschko T. A First Course in Finite Elements // John Wiley &amp; Sons Ltd, New York.</mixed-citation><mixed-citation xml:lang="en">org/10.1016/C2009-0-24909-9</mixed-citation></citation-alternatives></ref><ref id="cit35"><label>35</label><citation-alternatives><mixed-citation xml:lang="ru">P. 319. https://doi.org/10.1002/9780470510858.index</mixed-citation><mixed-citation xml:lang="en">Fish, J., Belutschko, T. 2007, A First Course in Finite Elements, John Wiley &amp; Sons Ltd, New</mixed-citation></citation-alternatives></ref><ref id="cit36"><label>36</label><citation-alternatives><mixed-citation xml:lang="ru">Vershinin A. V., Levin V. A., Kukushkin A. V., Konovalov D. A. Structural analysis of assemblies</mixed-citation><mixed-citation xml:lang="en">York. https://doi.org/10.1002/9780470510858.index</mixed-citation></citation-alternatives></ref><ref id="cit37"><label>37</label><citation-alternatives><mixed-citation xml:lang="ru">using non-conformal spectral element method // IOP Conf. Ser.: Mater. Sci. Eng. 747. 2020.</mixed-citation><mixed-citation xml:lang="en">Vershinin, A. V., Levin, V. A., Kukushkin, A. V., Konovalov, D. A. 2020, “Structural analysis of</mixed-citation></citation-alternatives></ref><ref id="cit38"><label>38</label><citation-alternatives><mixed-citation xml:lang="ru">P. 012033. https://doi.org/10.1088/1757-899x/747/1/012033</mixed-citation><mixed-citation xml:lang="en">assemblies using non-conformal spectral element method“, IOP Conf. Ser.: Mater. Sci. Eng.,</mixed-citation></citation-alternatives></ref><ref id="cit39"><label>39</label><citation-alternatives><mixed-citation xml:lang="ru">Orel B., Perne A. Chebyshev-Fourier Spectral Methods for Nonperiodic Boundary Value</mixed-citation><mixed-citation xml:lang="en">no.747, pp. 012033. https://doi.org/10.1088/1757-899x/747/1/012033</mixed-citation></citation-alternatives></ref><ref id="cit40"><label>40</label><citation-alternatives><mixed-citation xml:lang="ru">Problems // Journal of Applied Mathematics. 2014. P. 1-10. https://doi.org/10.1155/2014/</mixed-citation><mixed-citation xml:lang="en">Orel, B., Perne, A. 2014, “Chebyshev-Fourier Spectral Methods for Nonperiodic Boundary</mixed-citation></citation-alternatives></ref><ref id="cit41"><label>41</label><citation-alternatives><mixed-citation xml:lang="ru">Value Problems“, Journal of Applied Mathematics, pp. 1-10. https://doi.org/10.1155/2014/</mixed-citation><mixed-citation xml:lang="en">Value Problems“, Journal of Applied Mathematics, pp. 1-10. https://doi.org/10.1155/2014/</mixed-citation></citation-alternatives></ref><ref id="cit42"><label>42</label><citation-alternatives><mixed-citation xml:lang="ru">Petrovskiy K. A., Vershinin A. V., Levin V. A. Application of spectral elements method to</mixed-citation><mixed-citation xml:lang="en">Petrovskiy K. A., Vershinin A. V., Levin V. A. Application of spectral elements method to</mixed-citation></citation-alternatives></ref><ref id="cit43"><label>43</label><citation-alternatives><mixed-citation xml:lang="ru">calculation of stress-strain state of anisotropic laminated shells // IOP Conf. Ser.: Mater. Sci.</mixed-citation><mixed-citation xml:lang="en">Petrovskiy, K. A., Vershinin, A. V., Levin, V. A. 2016, “Application of spectral elements method</mixed-citation></citation-alternatives></ref><ref id="cit44"><label>44</label><citation-alternatives><mixed-citation xml:lang="ru">Eng. 158. 2016. P. 012077. https://doi.org/10.1088/1757-899x/158/1/012077</mixed-citation><mixed-citation xml:lang="en">to calculation of stress-strain state of anisotropic laminated shells“, IOP Conf. Ser.: Mater. Sci.</mixed-citation></citation-alternatives></ref><ref id="cit45"><label>45</label><citation-alternatives><mixed-citation xml:lang="ru">Karpenko V. S., Vershinin A. V., Levin V. A., Zingerman K. M. Some results of mesh convergence</mixed-citation><mixed-citation xml:lang="en">Eng., no. 158, pp. 012077. https://doi.org/10.1088/1757-899x/158/1/012077</mixed-citation></citation-alternatives></ref><ref id="cit46"><label>46</label><citation-alternatives><mixed-citation xml:lang="ru">estimation for the spectral element method of different orders in FIDESYS industrial</mixed-citation><mixed-citation xml:lang="en">Karpenko, V. S., Vershinin, A. V., Levin, V.A., Zingerman, K. M. 2016, “Some results of</mixed-citation></citation-alternatives></ref><ref id="cit47"><label>47</label><citation-alternatives><mixed-citation xml:lang="ru">package. IOP Conf. Ser.: Mater. Sci. Eng. 158.2016. P. 012049. https://doi.org/10.1088/</mixed-citation><mixed-citation xml:lang="en">mesh convergence estimation for the spectral element method of different orders in FIDESYS</mixed-citation></citation-alternatives></ref><ref id="cit48"><label>48</label><citation-alternatives><mixed-citation xml:lang="ru">-899x/158/1/012049</mixed-citation><mixed-citation xml:lang="en">industrial package“, IOP Conf. Ser.: Mater. Sci. Eng., no. 158, pp. 012049. https://doi.org/</mixed-citation></citation-alternatives></ref><ref id="cit49"><label>49</label><citation-alternatives><mixed-citation xml:lang="ru">Konovalov D., Vershinin A., Zingerman K., Levin V. The implementation of spectral element</mixed-citation><mixed-citation xml:lang="en">1088/1757-899x/158/1/012049</mixed-citation></citation-alternatives></ref><ref id="cit50"><label>50</label><citation-alternatives><mixed-citation xml:lang="ru">method in a CAE system for the solution of elasticity problems on hybrid curvilinear meshes //</mixed-citation><mixed-citation xml:lang="en">Konovalov, D., Vershinin, A., Zingerman, K., Levin, V. 2017, “The implementation of spectral</mixed-citation></citation-alternatives></ref><ref id="cit51"><label>51</label><citation-alternatives><mixed-citation xml:lang="ru">Modelling and Simulation in Engineering. 2017. P. 1797561. https://doi.org/10.1155/2017/</mixed-citation><mixed-citation xml:lang="en">element method in a CAE system for the solution of elasticity problems on hybrid curvilinear</mixed-citation></citation-alternatives></ref><ref id="cit52"><label>52</label><citation-alternatives><mixed-citation xml:lang="ru">meshes“, Modelling and Simulation in Engineering, pp. 1797561. https://doi.org/10.1155/</mixed-citation><mixed-citation xml:lang="en">meshes“, Modelling and Simulation in Engineering, pp. 1797561. https://doi.org/10.1155/</mixed-citation></citation-alternatives></ref><ref id="cit53"><label>53</label><citation-alternatives><mixed-citation xml:lang="ru">Solin P., Segeth K., Dolezel I. Higher-Order Finite Element Methods. Chapman &amp; Hall/CRC</mixed-citation><mixed-citation xml:lang="en">/1797561</mixed-citation></citation-alternatives></ref><ref id="cit54"><label>54</label><citation-alternatives><mixed-citation xml:lang="ru">Press. 2003. P. 408.</mixed-citation><mixed-citation xml:lang="en">Solin, P., Segeth, K., Dolezel, I. 2003, Higher-Order Finite Element Methods, Chapman &amp;</mixed-citation></citation-alternatives></ref><ref id="cit55"><label>55</label><citation-alternatives><mixed-citation xml:lang="ru">Козлов В. В, Комолова Е. Д., Филатова А. В. Использование системы автотестов CAE</mixed-citation><mixed-citation xml:lang="en">Hall/CRC Press, London, United Kingdom.</mixed-citation></citation-alternatives></ref><ref id="cit56"><label>56</label><citation-alternatives><mixed-citation xml:lang="ru">Fidesys для оценки сходимости метода спектральных элементов к точному решению при</mixed-citation><mixed-citation xml:lang="en">Kozlov, V. V., Komolova, E. D., Filatova, A. V. 2021, “Using the CAE Fidesys autotest system</mixed-citation></citation-alternatives></ref><ref id="cit57"><label>57</label><citation-alternatives><mixed-citation xml:lang="ru">повышении порядка элементов // Ломоносовские чтения. Научная конференция. Секция</mixed-citation><mixed-citation xml:lang="en">to assess the convergence of the spectral element method to the exact solution with increasing</mixed-citation></citation-alternatives></ref><ref id="cit58"><label>58</label><citation-alternatives><mixed-citation xml:lang="ru">механики. 20–26 апреля 2021 года. Тезисы докладов. М.: Изд-во МГУ. 2021. С. 114-115.</mixed-citation><mixed-citation xml:lang="en">element order“, Lomonosov Readings. Scientific Conference. Section of mechanics. April 20-26,</mixed-citation></citation-alternatives></ref><ref id="cit59"><label>59</label><citation-alternatives><mixed-citation xml:lang="ru">Kozlov V. V., Komolova E. D., Kartsev M. A., Filatova A. V. Analysis of the capabilities of</mixed-citation><mixed-citation xml:lang="en">Abstracts of reports. Publishing House of Moscow State University, pp. 114-115.</mixed-citation></citation-alternatives></ref><ref id="cit60"><label>60</label><citation-alternatives><mixed-citation xml:lang="ru">the spectral element method in solving physically and geometrically nonlinear problems of</mixed-citation><mixed-citation xml:lang="en">Kozlov, V. V., Komolova, E. D., Kartsev, M. A., Filatova, A. V. 2022, “Analysis of the</mixed-citation></citation-alternatives></ref><ref id="cit61"><label>61</label><citation-alternatives><mixed-citation xml:lang="ru">mechanics using the CAE Fidesys package // Continuum Mech. Thermodyn. 2022. https:</mixed-citation><mixed-citation xml:lang="en">capabilities of the spectral element method in solving physically and geometrically nonlinear</mixed-citation></citation-alternatives></ref><ref id="cit62"><label>62</label><citation-alternatives><mixed-citation xml:lang="ru">//doi.org/10.1007/s00161-022-01121-8</mixed-citation><mixed-citation xml:lang="en">problems of mechanics using the CAE Fidesys package“, Continuum Mech. Thermodyn. https:</mixed-citation></citation-alternatives></ref><ref id="cit63"><label>63</label><citation-alternatives><mixed-citation xml:lang="ru">Седов Л. И. Механика сплошной среды. Том 2. М.: Наука. 1970. 568 с.</mixed-citation><mixed-citation xml:lang="en">//doi.org/10.1007/s00161-022-01121-8</mixed-citation></citation-alternatives></ref><ref id="cit64"><label>64</label><citation-alternatives><mixed-citation xml:lang="ru">Kachanov L. M. Foundations of the Theory of Plasticity. North-Holland. Amsterdam. 1971. P.</mixed-citation><mixed-citation xml:lang="en">Sedov, L. I. 1970, Mekhanika sploshnoy sredy, tom 2 [Continuum mechanics, volume 2], Nauka,</mixed-citation></citation-alternatives></ref><ref id="cit65"><label>65</label><citation-alternatives><mixed-citation xml:lang="ru">https://doi.org/10.1007/978-0-387-33599-5_3</mixed-citation><mixed-citation xml:lang="en">Moscow, Russia.</mixed-citation></citation-alternatives></ref><ref id="cit66"><label>66</label><citation-alternatives><mixed-citation xml:lang="ru">Levin V. A., Zubov L. M., Zingerman K. M. An exact solution for the problem of flexure of a</mixed-citation><mixed-citation xml:lang="en">Kachanov, L. M. 1971, Foundations of the Theory of Plasticity, North-Holland, Amsterdam.</mixed-citation></citation-alternatives></ref><ref id="cit67"><label>67</label><citation-alternatives><mixed-citation xml:lang="ru">composite beam with preliminarily strained layers under large strains // International Journal</mixed-citation><mixed-citation xml:lang="en">https://doi.org/10.1007/978-0-387-33599-5\_3</mixed-citation></citation-alternatives></ref><ref id="cit68"><label>68</label><citation-alternatives><mixed-citation xml:lang="ru">of Solids and Structures. 2015. Vol. 67-68. P. 244-249. https://doi.org/10.1016/j.ijsolstr.</mixed-citation><mixed-citation xml:lang="en">Levin, V. A., Zubov, L. M., Zingerman, K. M. 2015, “An exact solution for the problem of</mixed-citation></citation-alternatives></ref><ref id="cit69"><label>69</label><citation-alternatives><mixed-citation xml:lang="ru">04.024</mixed-citation><mixed-citation xml:lang="en">flexure of a composite beam with preliminarily strained layers under large strains“, International</mixed-citation></citation-alternatives></ref><ref id="cit70"><label>70</label><citation-alternatives><mixed-citation xml:lang="ru">Levin V. A., Zubov L. M., Zingerman K. M. An exact solution for the problem of flexure of</mixed-citation><mixed-citation xml:lang="en">Journal of Solids and Structures, vol. 67-68, pp. 244-249. https://doi.org/10.1016/j.</mixed-citation></citation-alternatives></ref><ref id="cit71"><label>71</label><citation-alternatives><mixed-citation xml:lang="ru">a composite beam with preliminarily strained layers under large strains. Part 2. Solution for</mixed-citation><mixed-citation xml:lang="en">ijsolstr.2015.04.024</mixed-citation></citation-alternatives></ref><ref id="cit72"><label>72</label><citation-alternatives><mixed-citation xml:lang="ru">different types of incompressible materials // International Journal of Solids and Structures.</mixed-citation><mixed-citation xml:lang="en">Levin, V. A., Zubov, L. M., Zingerman, K. M. 2016, “An exact solution for the problem of flexure</mixed-citation></citation-alternatives></ref><ref id="cit73"><label>73</label><citation-alternatives><mixed-citation xml:lang="ru">Vol. 100-101. P. 558-565. https://doi.org/10.1016/j.ijsolstr.2016.09.029</mixed-citation><mixed-citation xml:lang="en">of a composite beam with preliminarily strained layers under large strains. Part 2. Solution for</mixed-citation></citation-alternatives></ref><ref id="cit74"><label>74</label><citation-alternatives><mixed-citation xml:lang="ru">Levin V. A., Zubov L. M., Zingerman K. M. Exact solution of the nonlinear bending problem</mixed-citation><mixed-citation xml:lang="en">different types of incompressible materials“, International Journal of Solids and Structures, vol.</mixed-citation></citation-alternatives></ref><ref id="cit75"><label>75</label><citation-alternatives><mixed-citation xml:lang="ru">for a composite beam containing a prestressed layer at large strains // Doklady Physics. 2015.</mixed-citation><mixed-citation xml:lang="en">-101, pp. 558-565. https://doi.org/10.1016/j.ijsolstr.2016.09.029</mixed-citation></citation-alternatives></ref><ref id="cit76"><label>76</label><citation-alternatives><mixed-citation xml:lang="ru">Vol. 60. P. 24-27. https://doi.org/10.1134/S102833581501005X</mixed-citation><mixed-citation xml:lang="en">Levin, V. ,A., Zubov, L. M., Zingerman, K. M. 2015,“Exact solution of the nonlinear bending</mixed-citation></citation-alternatives></ref><ref id="cit77"><label>77</label><citation-alternatives><mixed-citation xml:lang="ru">Zingerman K. M., Levin V. A. Some qualitative effects in the exact solutions of the Lam´e</mixed-citation><mixed-citation xml:lang="en">problem for a composite beam containing a prestressed layer at large strains“, Doklady Physics,</mixed-citation></citation-alternatives></ref><ref id="cit78"><label>78</label><citation-alternatives><mixed-citation xml:lang="ru">problem for large deformations // Journal of Applied Mathematics and Mechanics. 2012. Vol.</mixed-citation><mixed-citation xml:lang="en">vol. 60, pp. 24-27. https://doi.org/10.1134/S102833581501005X</mixed-citation></citation-alternatives></ref><ref id="cit79"><label>79</label><citation-alternatives><mixed-citation xml:lang="ru">P. 205-219. https://doi.org/10.1016/j.jappmathmech.2012.05.012</mixed-citation><mixed-citation xml:lang="en">Zingerman, K. M., Levin, V. A. 2012, “Some qualitative effects in the exact solutions of the</mixed-citation></citation-alternatives></ref><ref id="cit80"><label>80</label><citation-alternatives><mixed-citation xml:lang="ru">Levin V. A., Zubov L. M., Zingerman K. M. An exact solution to the problem of biaxial loading</mixed-citation><mixed-citation xml:lang="en">Lam´e problem for large deformations“, Journal of Applied Mathematics and Mechanics, vol. 76,</mixed-citation></citation-alternatives></ref><ref id="cit81"><label>81</label><citation-alternatives><mixed-citation xml:lang="ru">of a micropolar elastic plate made by joining two prestrained arc-shaped layers under large</mixed-citation><mixed-citation xml:lang="en">pp. 205-219. https://doi.org/10.1016/j.jappmathmech.2012.05.012</mixed-citation></citation-alternatives></ref><ref id="cit82"><label>82</label><citation-alternatives><mixed-citation xml:lang="ru">strains // European Journal of Mechanics, A/Solids. 2021. Vol. 88. P. 104237. https://doi.</mixed-citation><mixed-citation xml:lang="en">Levin, V. A., Zubov, L. M., Zingerman, K. M. 2021, “An exact solution to the problem of biaxial</mixed-citation></citation-alternatives></ref><ref id="cit83"><label>83</label><citation-alternatives><mixed-citation xml:lang="ru">org/10.1016/j.euromechsol.2021.104237</mixed-citation><mixed-citation xml:lang="en">loading of a micropolar elastic plate made by joining two prestrained arc-shaped layers under</mixed-citation></citation-alternatives></ref><ref id="cit84"><label>84</label><citation-alternatives><mixed-citation xml:lang="ru">Levin V.A., Podladchikov Y. Y., Zingerman K.M. An exact solution to the Lame problem for</mixed-citation><mixed-citation xml:lang="en">large strains“, European Journal of Mechanics, A/Solids, vol. 88, pp. 104237. https://doi.</mixed-citation></citation-alternatives></ref><ref id="cit85"><label>85</label><citation-alternatives><mixed-citation xml:lang="ru">a hollow sphere for new types of nonlinear elastic materials in the case of large deformations</mixed-citation><mixed-citation xml:lang="en">org/10.1016/j.euromechsol.2021.104237</mixed-citation></citation-alternatives></ref><ref id="cit86"><label>86</label><citation-alternatives><mixed-citation xml:lang="ru">// European Journal of Mechanics, A/Solids. 2021. Vol. 90. P. 104345. https://doi.org/10.</mixed-citation><mixed-citation xml:lang="en">Levin, V. A., Podladchikov, Y. Y., Zingerman, K. M. 2021, “An exact solution to the Lame</mixed-citation></citation-alternatives></ref><ref id="cit87"><label>87</label><citation-alternatives><mixed-citation xml:lang="ru">/j.euromechsol.2021.104345</mixed-citation><mixed-citation xml:lang="en">problem for a hollow sphere for new types of nonlinear elastic materials in the case of large deformations“, European Journal of Mechanics, A/Solids, vol. 90, pp. 104345. https://doi.</mixed-citation></citation-alternatives></ref><ref id="cit88"><label>88</label><citation-alternatives><mixed-citation xml:lang="ru">Levin V. A., Zubov L. M., Zingerman K. M. Large bending strains in an orthotropic beam with</mixed-citation><mixed-citation xml:lang="en">org/10.1016/j.euromechsol.2021.104345</mixed-citation></citation-alternatives></ref><ref id="cit89"><label>89</label><citation-alternatives><mixed-citation xml:lang="ru">a preliminarily stretched or compressed layer: Exact solution // Doklady Physics. 2016. Vol.</mixed-citation><mixed-citation xml:lang="en">Levin, V. A., Zubov, L. M., Zingerman, K. M. 2016, “Large bending strains in an orthotropic</mixed-citation></citation-alternatives></ref><ref id="cit90"><label>90</label><citation-alternatives><mixed-citation xml:lang="ru">P. 407-411. https://dx.doi.org/10.1134/S1028335816080127</mixed-citation><mixed-citation xml:lang="en">beam with a preliminarily stretched or compressed layer: Exact solution“, Doklady Physics, vol.</mixed-citation></citation-alternatives></ref><ref id="cit91"><label>91</label><citation-alternatives><mixed-citation xml:lang="ru">, pp. 407-411. https://dx.doi.org/10.1134/S1028335816080127</mixed-citation><mixed-citation xml:lang="en">, pp. 407-411. https://dx.doi.org/10.1134/S1028335816080127</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
