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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">10.22405/2226-8383-2017-18-3-254-278</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-358</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>Article</subject></subj-group></article-categories><title-group><article-title>ТОЧНЫЕ РЕШЕНИЯ ЗАДАЧ ТЕОРИИ МНОГОКРАТНОГО НАЛОЖЕНИЯ БОЛЬШИХ ДЕФОРМАЦИЙ ДЛЯ ТЕЛ, ОБРАЗОВАННЫХ ПОСЛЕДОВАТЕЛЬНЫМ СОЕДИНЕНИЕМ ДЕФОРМИРОВАННЫХ ЧАСТЕЙ</article-title><trans-title-group xml:lang="en"><trans-title>EXACT SOLUTIONS OF PROBLEMS OF THE THEORY OF REPEATED SUPERPOSITION OF LARGE STRAINS FOR BODIES CREATED BY SUCCESSIVE JUNCTION OF STRAINED PARTS</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>Зингерман</surname><given-names>К. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Zingerman</surname><given-names>K. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор, заведующий кафедрой вычислительной математики</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences, professor, head  of chair of mathematical modeling and computational mathematics</p></bio><email xlink:type="simple">Zingerman.KM@tversu.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>Зубов</surname><given-names>Л. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Zubov</surname><given-names>L. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор, профессор кафедры теории упругости </p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences, professor,  professor of chair of theory of elasticity, institute of mathematics, mechanics and computer sciences</p></bio><email xlink:type="simple">lmzubov@sfedu.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><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-2"><aff xml:lang="ru"><institution>Институт математики, механики и компьютерных наук ЮФУ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Souphern Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>08</day><month>01</month><year>2018</year></pub-date><volume>18</volume><issue>3</issue><fpage>254</fpage><lpage>278</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зингерман К.М., Зубов Л.М., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Зингерман К.М., Зубов Л.М.</copyright-holder><copyright-holder xml:lang="en">Zingerman K.M., Zubov L.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://www.chebsbornik.ru/jour/article/view/358">https://www.chebsbornik.ru/jour/article/view/358</self-uri><abstract><p>В статье приведены и развиты разработанные совместно с профессором МГУ им. М.В.  Ломоносова В.Ан. Левиным подходы к точному аналитическому решению задач о больших  деформациях составных изделий (тел) из несжимаемых изотропных нелинейно-упругих  материалов, части которых предварительно деформированы. Решение этих задач  представляет интерес при анализе напряжений в элементах конструкций, изготавливаемых  из предварительно нагруженных частей. Результаты могут быть использованы для  тестирования промышленного программного обеспечения, предназначенного для  численного моделирования аддитивных технологий. Постановка задач осуществляется на  основе теории наложения больших деформаций и в рамках этой теории может быть  сформулирована следующим образом. Части изделия, первоначально не связанные между  собой, подвергаются начальному деформированию и переходят в промежуточное состояние. Затем эти части соединяются между собой. Соединение происходит по некоторым поверхностям, общим для каждой пары соединяемых частей. Далее тело, составленное из нескольких частей, деформируется как единое целое под действием приложенной к нему  дополнительной нагрузки и переходит в конечное состояние. Предполагается, что на  поверхностях, по которым соединены части тела, выполняются условия идеального  контакта, т.е. векторы перемещений в соединяемых частях изделия на этих поверхностях  совпадают. Точные решения для изотропных несжимаемых материалов найдены с  использованием известных универсальных решений и могут быть рассмотрены как  обобщение этих решений на случай наложения больших деформаций. В статье детально  рассмотрены следующие задачи:</p><p>— задача о напряженно-деформированном состоянии в  двух полых круговых упругих цилиндрах (трубах), один из которых был предварительно  деформирован и вставлен в другой цилиндр (задача Ламе-Гадолина);</p><p>— задача о кручении  составного цилиндра;</p><p>— задача о больших деформациях изгиба составного бруса, состоящего из нескольких предварительно деформированных частей (слоев). Приведены  математические постановки этих задач, методы и некоторые результаты их решения.  Исследовано влияние предварительных деформаций на напряженно-деформированное  состояние, анализируются нелинейные эффекты.</p></abstract><trans-abstract xml:lang="en"><p>Large strains of composite solids made of incompressible isotropic nonlinear-elastic materials are analyzed for the case in  which the parts of these solids are preliminarily strained. The  approaches to exact analytical solutions of these problems are given  and developed in cooperation with V.An. Levin. He is a professor at  the Lomonosov Moscow University. The solution of these problems is  useful for stress analysis in members containing preliminarily stressed parts. The results can be used for the verification of industrial software for numerical modeling of additive  technologies. The problems are formulated using the theory of  repeated superposition of large strains. Within the framework of this  theory these problems can be formulated as follows. Parts of a  member, which are initially separated from one another, are subjected to initial strain and passes to the intermediate state. Then  these parts are joined with one another. The joint is performed by  some surfaces that are common for each pair of connected parts.  Then  the body, which is composed of some parts, is strained as a  whole due to additional loading. The body passes to the final state.  It is assumed that the ideal contact conditions are satisfied over the  joint surfaces. In other words, the displacement vector in the joined  parts is continuous over these surfaces. The exact solutions for  isotropic incompressible materials are obtained using known  universal solutions and can be considered as generalizations of these solutions for superimposed large strains. The following problems are considered in detail:</p><p>— the problem of stress and strain state in two hollow circular elastic cylinders (tubes) one of which is preliminarily strained and inserted into another cylinder (the Lam´e-Gadolin problem);</p><p>— the problem of torsion of a composite cylinder;</p><p>— the problem of large bending strains of a composite beam consisting of some preliminarily strained parts (layers). The  mathematical statements of these problems are given, the methods  of solution are presented, and some results of solution are shown.  The impact of preliminary strains on the state of stresses and strains is investigated, and nonlinear effects are analyzed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нелинейная теория упругости</kwd><kwd>наложение больших деформаций</kwd><kwd>предварительно деформированные тела</kwd><kwd>точные аналитические решения</kwd><kwd>аддитивные технологии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nonlinear theory of elasticity</kwd><kwd>superposition of large strains</kwd><kwd>prestrained bodies</kwd><kwd>exact analytical solutions</kwd><kwd>additive technologies</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">Levin V.A. Theory of repeated superposition of large deformations. 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