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<article xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" dtd-version="1.4" article-type="research-article" xml:lang="en"><front><journal-meta><journal-title-group><journal-title xml:lang="ru">Проблемы прочности и пластичности</journal-title></journal-title-group><issn publication-format="print">1814-9146</issn></journal-meta><article-meta><article-id pub-id-type="doi">10.32326/1814-9146-2026-88-2-123-131</article-id><article-categories><subj-group><subject>Other</subject></subj-group></article-categories><title-group><article-title xml:lang="ru">КОНТАКТНЫЕ ЗАДАЧИ О ДЕЙСТВИИ ТУПОУГОЛЬНЫХ КЛИНОВИДНЫХ В ПЛАНЕ ШТАМПОВ НА АНИЗОТРОПНЫЙ КОМПОЗИТ</article-title><trans-title-group xml:lang="en"><trans-title>CONTACT PROBLEMS ON THE ACTION OF OBTUSE WEDGE-SHAPEDINTERMS OF STAMPS FOR ANISOTROPIC COMPOSITE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Бабешко</surname><given-names>В.А.</given-names></name><name xml:lang="en"><surname>Babeshko</surname><given-names>V.A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/><email>babeshko41@mail.ru</email></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Евдокимов</surname><given-names>В.С.</given-names></name><name xml:lang="en"><surname>Evdokimov</surname><given-names>V.S.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Бабешко</surname><given-names>О.М.</given-names></name><name xml:lang="en"><surname>Babeshko</surname><given-names>O.M.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Евдокимова</surname><given-names>О.В.</given-names></name><name xml:lang="en"><surname>Evdokimova</surname><given-names>O.V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff2"/></contrib><aff-alternatives id="aff1"><aff xml:lang="en"><institution>Kuban State University (Krasnodar, Russian Federation)</institution></aff><aff xml:lang="ru"><institution>Кубанский государственный университет (Краснодар, Российская Федерация)</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff xml:lang="en"><institution>Southern Scientific Center of the Russian Academy of Sciences (Rostov-on-Don, Russian Federation)</institution></aff><aff xml:lang="ru"><institution>Южный научный центр РАН (Ростов-на-Дону, Российская Федерация)</institution></aff></aff-alternatives></contrib-group><pub-date pub-type="epub" iso-8601-date="2026-06-30"><day>30</day><month>06</month><year>2026</year></pub-date><volume>88</volume><issue>2</issue><fpage>123</fpage><lpage>131</lpage><permissions><license xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:title="CC BY 4.0"><ali:license_ref>https://creativecommons.org/licenses/by/4.0/</ali:license_ref><license-p xml:lang="ru">CC BY 4.0</license-p></license></permissions><self-uri xlink:href="http://ppp.mech.unn.ru/index.php/ppp/article/view/953" xlink:title="http://ppp.mech.unn.ru/index.php/ppp/article/view/953">http://ppp.mech.unn.ru/index.php/ppp/article/view/953</self-uri><abstract xml:lang="ru"><p>Впервые построено точное решение контактных задач о действии тупоугольных клиновидных в плане штампов на анизотропную композитную многослойную среду. Этот тип контактных задач долгое время не удавалось решить, хотя их актуальность в инженерной практике велика, особенно в задачах для композитных материалов. Исследование задач такого типа стало возможным в связи с разработанным авторами решением двумерных интегральных уравнений Винера – Хопфа в сочетании с применением таких подходов, как метод блочного элемента, топологические и факторизационные методы. Найдены диапазоны параметров областей, для которых можно строить точное решение контактных задач для тупоугольных клиновидных штампов, основываясь на решениях двумерного интегрального уравнения Винера – Хопфа. Для этих целей использован гомеоморфизм отображений дифференциальной топологии. В результате исследования подтверждено, что вопросы выделения неограниченных особенностей решений граничных задач, возникающих на границах штампов, наряду с применением методов спектрального анализа можно осуществлять факторизационными методами, что ранее не было известно. Построенное решение открыло возможность не только для изучения конструкционных свойств многокомпонентных анизотропных композитов, контактирующих с жесткими штампами указанной формы, но также и для исследования прочности и разрушения блочных структур разноразмерных блоков и включений, возникающих в сейсмологии. Кроме этого, решение поставленной задачи открыло возможность создания нового типа излучателей и преобразователей поверхностных волн, ранее не описанных, для клиновидных областей, что может оказаться полезным в решении проблем в электронике, акустике и применено в исследовании наноматериалов.</p></abstract><abstract xml:lang="en" abstract-type="summary"><p>In this work, for the first time, an accurate solution of contact action problems is constructed. obtuse-angled wedge-shaped stamps on an anisotropic composite multilayer medium. This type of contact problems has not been solved for a long time, although their relevance in engineering practice is great, especially in problems for composite materials. The study of these problems became possible due to the solution of two-dimensional Wiener–Hopf integral equations developed by the authors. This was facilitated by a combination of approaches such as the block element method, topological and factorization methods. As a result, ranges of domain parameters have been found for which it is possible to construct an accurate solution of contact problems for obtuse-angled wedge-shaped dies based on solutions of the two-dimensional Wiener–Hopf integral equation. For these purposes, the homeomorphism of maps of differential topology is used. As a result of the study, it is confirmed that the issues of identifying unlimited features of solutions to boundary problems arising at the boundaries of stamps, along with the use of spectral analysis methods, can be carried out using factorization methods, which was not previously known. The constructed solution opened up the possibility not only to study the structural properties of multicomponent anisotropic composites in contact with rigid dies of the specified shape, but also to study the strength and fracture of block structures of different sized blocks and inclusions that occur in seismology. In addition, the solution of this problem has opened up the possibility of creating a new type of surface wave emitters and transducers not previously described for wedge-shaped areas, which may be useful in problems of electronics, acoustics and nanomaterials.</p></abstract><kwd-group xml:lang="ru"><kwd>контактные задачи</kwd><kwd>клиновидный тупоугольный в плане штамп</kwd><kwd>анизотропный композит</kwd><kwd>факторизация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>contact problems</kwd><kwd>wedge-shaped obtuse-angled stamp</kwd><kwd>anisotropic composite</kwd><kwd>factorization</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Выполнено при финансовой поддержке РНФ и Кубанского научного фонда, региональный совместно финансируемый проект 24-11-20006.</funding-statement><funding-statement xml:lang="en">Supported by the Russian Science Foundation and the Kuban Science Foundation (project 24-11-20006, regionally co-funded).</funding-statement></funding-group></article-meta></front><back><ref-list><ref id="ref1"><mixed-citation publication-type="other" xml:lang="ru">Freund L. 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