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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Structural Mechanics of Engineering Constructions and Buildings</journal-id><journal-title-group><journal-title xml:lang="en">Structural Mechanics of Engineering Constructions and Buildings</journal-title><trans-title-group xml:lang="ru"><trans-title>Строительная механика инженерных конструкций и сооружений</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1815-5235</issn><issn publication-format="electronic">2587-8700</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">30917</article-id><article-id pub-id-type="doi">10.22363/1815-5235-2021-17-6-617-627</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Numerical methods of shell analysis</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Численные методы расчета оболочек</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Investigation of the accuracy and convergence of the results of thin shells analysis using the PRINS program</article-title><trans-title-group xml:lang="ru"><trans-title>Исследование точности и сходимости результатов расчета тонких оболочек с помощью программы ПРИНС</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1749-5797</contrib-id><name-alternatives><name xml:lang="en"><surname>Agapov</surname><given-names>Vladimir P.</given-names></name><name xml:lang="ru"><surname>Агапов</surname><given-names>Владимир Павлович</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Technical Sciences, Professor of the Department of Reinforced Concrete and Masonry Structures</p></bio><bio xml:lang="ru"><p>доктор технических наук, профессор кафедры железобетонных и каменных конструкций</p></bio><email>agapovpb@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3967-2114</contrib-id><name-alternatives><name xml:lang="en"><surname>Markovich</surname><given-names>Alexey S.</given-names></name><name xml:lang="ru"><surname>Маркович</surname><given-names>Алексей Семенович</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Technical Sciences, Associate Professor of the Department of Civil Engineering, Academy of Engineering</p></bio><bio xml:lang="ru"><p>кандидат технических наук, доцент департамента строительства, Инженерная академия</p></bio><email>markovich-as@rudn.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow State University of Civil Engineering (National Research University)</institution></aff><aff><institution xml:lang="ru">Национальный исследовательский Московский государственный строительный университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia (RUDN University)</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-12-30" publication-format="electronic"><day>30</day><month>12</month><year>2021</year></pub-date><volume>17</volume><issue>6</issue><issue-title xml:lang="en">Prospects for the application of shell structures and thin shells in the first half of the 21st century</issue-title><issue-title xml:lang="ru">Перспективы применения оболочечных структур и тонких оболочек в первой половине XXI в.</issue-title><fpage>617</fpage><lpage>627</lpage><history><date date-type="received" iso-8601-date="2022-04-28"><day>28</day><month>04</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2021, Agapov V.P., Markovich A.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2021, Агапов В.П., Маркович А.С.</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="en">Agapov V.P., Markovich A.S.</copyright-holder><copyright-holder xml:lang="ru">Агапов В.П., Маркович А.С.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/structural-mechanics/article/view/30917">https://journals.rudn.ru/structural-mechanics/article/view/30917</self-uri><abstract xml:lang="en"><p style="text-align: justify;">The theoretical foundations of compatible finite elements construction for static and dynamic analysis of single-layer and multilayer shells are discussed. These finite elements are implemented in the PRINS computer program. The paper presents verification tests to investigate the accuracy and convergence of the results of calculating various shells using these finite elements. Shell structures are widely used in various fields of technology - construction, mechanical engineering, aircraft construction, shipbuilding, etc. Specialists on the design and calculation of such structures need a reliable and accessible tool for the practical problems solving. Computer program PRINS can be one of such tools. It can be effectively used by engineers of design and scientific organizations to solve a wide class of engineering problems related to the calculations of shell structures. The paper describes the finite elements of the shells, implemented in the PRINS program. The results of verification calculations are presented, which confirm the high accuracy of this program.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Приводятся теоретические основы построения совместных конечных элементов для статического и динамического расчета как однослойных, так и многослойных оболочек. Данные конечные элементы реализованы в вычислительном комплексе ПРИНС. Представлены верификационные тесты, на основании которых выполнено исследование точности и сходимости результатов расчета различных оболочек с использованием этих конечных элементов. Оболочечные конструкции находят широкое применение в различных областях техники - строительстве, машиностроении, самолетостроении, судостроении и т. д. Специалисты по проектированию и расчету таких конструкций нуждаются в надежном и доступном инструменте для решения практических задач. Вычислительный комплекс ПРИНС может быть одним из них. Описываются конечные элементы оболочек, реализованные в вычислительном комплексе ПРИНС. Получены результаты верификационных тестов, подтверждающие высокую точность и сходимость этих конечных элементов. Вычислительный комплекс ПРИНС может быть эффективно использован инженерами проектных и научных организаций для решения широкого класса инженерных задач, связанных с расчетами оболочечных конструкций.</p></trans-abstract><kwd-group xml:lang="en"><kwd>finite element method</kwd><kwd>PRINS program</kwd><kwd>calculation methods</kwd><kwd>shells</kwd><kwd>multilayer plates</kwd><kwd>multilayer shells</kwd><kwd>layered structures</kwd><kwd>mechanics of deformable bodies</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>метод конечных элементов</kwd><kwd>вычислительный комплекс ПРИНС</kwd><kwd>методы расчеты оболочек</kwd><kwd>многослойные пластины</kwd><kwd>многослойные оболочки</kwd><kwd>слоистые конструкции</kwd><kwd>механика деформируемых тел</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Lyav A. Mathematical theory of elasticity. Moscow, Leningrad: ONTI Publ.; 1935. 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