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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">vdgtu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Дагестанского государственного технического университета. Технические науки</journal-title><trans-title-group xml:lang="en"><trans-title>Herald of Dagestan State Technical University. Technical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-6185</issn><issn pub-type="epub">2542-095X</issn><publisher><publisher-name>Daghestan State Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21822/2073-6185-2019-46-3-159-166</article-id><article-id custom-type="elpub" pub-id-type="custom">vdgtu-703</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>СТРОИТЕЛЬСТВО И АРХИТЕКТУРА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BUILDING AND ARCHITECTURE</subject></subj-group></article-categories><title-group><article-title>ОСОБЕННОСТИ НАПРЯЖЕНИЙ В ВЕРШИНЕ УПРУГОГО КЛИНА, ПОДКРЕПЛЕННОГО ТОНКИМ ГИБКИМ ПОКРЫТИЕМ НА ЕГО СТОРОНАХ</article-title><trans-title-group xml:lang="en"><trans-title>FEATURES OF STRESSES AT THE APEX OF AN ELASTIC WEDGE, SUPPORTED  BY A THIN FLEXIBLE COATING ON THE SIDES</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>Соболь</surname><given-names>Б. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sobol'</surname><given-names>B. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор, заведующий кафедрой информационных технологий</p><p> </p></bio><bio xml:lang="en"><p>Dr. Sci. (Technical), Prof., Department of Information Technologies</p><p>1 Gagarin Square, Rostov-on-Don 344010</p></bio><email xlink:type="simple">b.sobol@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>Соловьев</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Soloviev</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор, заведующий кафедрой теоретической и прикладной механики</p><p>344010, г. Ростов-на-Дону, пл. Гагарина, 1</p></bio><bio xml:lang="en"><p> Dr. (Physics and Mathematical)), Prof., Head of the Department of Theoretical and Applied Mechanics</p><p>1 Gagarin Square, Rostov-on-Don 344010</p></bio><email xlink:type="simple">solovievarc@gmail.com</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>Пайзулаев</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Payzulaev</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, доцент, кафедра сопротивления материалов, теоретической и строительной механики</p><p>367026, г. Махачкала, пр. И.Шамиля, 70</p></bio><bio xml:lang="en"><p>Cand. Sci. (Technical), Seniorlecturer, Department of Resistance of Materials, Theoretical and Building Mechanics</p><p>70 I. Shamil Ave., Makhachkala 367026</p></bio><email xlink:type="simple">ventav@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>Рашидова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Rashidova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук, профессор, кафедра информационных технологий</p><p>344010, г. Ростов-на-Дону, пл. Гагарина, 1</p></bio><bio xml:lang="en"><p>Cand. Sci. ( Physics and Mathematical), Prof., Department of Information Technologies</p><p>1 Gagarin Square, Rostov-on-Don 344010</p></bio><email xlink:type="simple">el.rash@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>Муртазалиев</surname><given-names>Г. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Murtazaliev</surname><given-names>G. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор, кафедра сопротивления материалов, теоретической и строительной механики</p><p>367026, г. Махачкала, пр. И.Шамиля, 70</p></bio><bio xml:lang="en"><p>70 I. Shamil Ave., Makhachkala 367026</p></bio><email xlink:type="simple">smdstu@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Донской государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Don State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Дагестанский государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Daghestan State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>24</day><month>11</month><year>2019</year></pub-date><volume>46</volume><issue>3</issue><fpage>59</fpage><lpage>166</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Соболь Б.В., Соловьев А.Н., Пайзулаев М.М., Рашидова Е.В., Муртазалиев Г.М., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Соболь Б.В., Соловьев А.Н., Пайзулаев М.М., Рашидова Е.В., Муртазалиев Г.М.</copyright-holder><copyright-holder xml:lang="en">Sobol' B.V., Soloviev A.N., Payzulaev M.M., Rashidova E.V., Murtazaliev G.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://vestnik.dgtu.ru/jour/article/view/703">https://vestnik.dgtu.ru/jour/article/view/703</self-uri><abstract><sec><title>Цель</title><p>Цель. Провести исследование задачи об определении показателей степени при особенности напряжений в вершине клиновидной области в случаях, когда на ее сторонах (или на одной из них) закреплено тонкое гибкое покрытие. </p></sec><sec><title>Метод</title><p>Метод. Предполагается, что покрытие является нерастяжимым. На другой стороне клиновидной области предполагаются условия наличия такого же покрытия, либо она зафиксирована, свободна от напряжений, либо находится в гладком контакте с жестким основанием. Математически, проблема сводится к задаче определения корней характеристических трансцендентных уравнений, возникающих из условия существования нетривиального решения системы линейных однородных уравнений.</p></sec><sec><title>Результат</title><p>Результат. Для различных сочетаний граничных условий и углов раствора определены показатели при особенности радиальной компоненты тензора напряжений. В частности, установлены значения углов, при которых возникает сингулярное поведение у напряжений. Рассмотрен случай, когда на поверхности ребра задано специальное граничное условие, моделирующее накладку, и получены характеристические уравнения для определения показателя степенной зависимости асимптотического решения в его окрестности для четырех вариантов граничных условий. В двух случаях получились трансцендентные уравнения, которые решаются численно.</p></sec><sec><title>Вывод</title><p>Вывод. Представлены расчеты первых положительный корней уравнений в зависимости от угла раствора ребра и коэффициента Пуассона. Определены значения углов, при которых возникает сингулярное поведение у напряжений. В случае сочетания граничных условий (III - IV), сингулярное поведение напряжений наблюдается для угла ???? = ????/8, тогда как, в случае (III - III) это значение равно ????/4. </p></sec></abstract><trans-abstract xml:lang="en"><p>Objectives To study the problem of determining the degree of stress at the apex of a wedge-shaped area in cases where the sides (or one of them) are covered with a thin flexible coating.</p><p>Method It is assumed that the coating is not stretchable. On the other side of the wedge-shaped area, the same coating is assumed to be present; it is either fixed, stress-free or in smooth contact with a rigid base. Mathematically, the problem is reduced to the task of determining the roots of characteristic transcendental equations arising from the existence of a nontrivial solution to the system of linear homogeneous equations.</p><p>Results Values for the specific characteristics of the radial component of a stress tensor are determined for different combinations of boundary conditions and solution angles. In particular, the angles at which the singular behaviour of stresses occurs are determined. The case is considered when a special boundary condition is given on the edge surface, simulating the overlay. Characteristic equations are obtained to determine the index of the degree dependency of the asymptotic solution in its vicinity for four variants of boundary conditions. In two cases, transcendental equations are obtained, which are solved numerically.</p><p>Conclusion Calculations of the first positive roots of the equations depending on the angle of the edge solution and Poisson's ratio are presented. The values of the angles, at which the singular behaviour of stresses occurs, are determined. In the case of a combination of boundary conditions (III – IV), the singular stress behaviour is observed for the angle ???? = ????/8, while in the case of (III – III) this value is equal to ????/4. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>клиновидная область</kwd><kwd>гибкое покрытие</kwd><kwd>сингулярность напряжений</kwd><kwd>граничные условия</kwd><kwd>угол раствора</kwd></kwd-group><kwd-group xml:lang="en"><kwd>wedge-shaped area</kwd><kwd>flexible coating</kwd><kwd>stress singularity</kwd><kwd>boundary conditions</kwd><kwd>solution angle</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке гранта РФФИ: 19-08-00074</funding-statement><funding-statement xml:lang="en">This work was supported by a grant from the Russian Foundation for Basic Research (RFBR): 19-08-00074.</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">Аксентян О.К. 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