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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">10.22405/2226-8383-2021-22-4-352-360</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1150</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>Краткие сообщения</subject></subj-group></article-categories><title-group><article-title>Математическое эффективное уравнение разгрузки пористых металлических композиционных материалов</article-title><trans-title-group xml:lang="en"><trans-title>Mathematical effective equation of unloading of porous metal composite materials</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>Архипов</surname><given-names>Игорь Константинович</given-names></name><name name-style="western" xml:lang="en"><surname>Arkhipov</surname><given-names>Igor Konstantinovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of technical sciences, professor</p></bio><email xlink:type="simple">iarh@list.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>Абрамова</surname><given-names>Влада Игоревна</given-names></name><name name-style="western" xml:lang="en"><surname>Abramova</surname><given-names>Vlada Igorevna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, доцент</p></bio><bio xml:lang="en"><p> candidate of technical sciences, associate professor</p></bio><email xlink:type="simple">abramova_vi@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>Кутепов</surname><given-names>Сергей Николаевич</given-names></name><name name-style="western" xml:lang="en"><surname>Kutepov</surname><given-names>Sergey Nikolaevich</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат педагогических наук, доцент</p></bio><bio xml:lang="en"><p>candidate of pedagogical science, associate professor</p></bio><email xlink:type="simple">kutepov.sergei@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>Гвоздев</surname><given-names>Александр Евгеньевич</given-names></name><name name-style="western" xml:lang="en"><surname>Gvozdev</surname><given-names>Alexander Evgenievich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of engineering, professor</p></bio><email xlink:type="simple">gwozdew.alexandr2013@yandex.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>Кузовлева</surname><given-names>Ольга Владимировна</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzovleva</surname><given-names>Olga Vladimirovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, доцент</p></bio><bio xml:lang="en"><p>candidate of technical sciences, docent, </p></bio><email xlink:type="simple">kusovleva@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Тульский государственный педагогический университет им. Л. Н. Толстого</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tula State Lev Tolstoy Pedagogical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Российский государственный университет правосудия</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian State University of Justice</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>11</day><month>01</month><year>2022</year></pub-date><volume>22</volume><issue>4</issue><fpage>352</fpage><lpage>360</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Архипов И.К., Абрамова В.И., Кутепов С.Н., Гвоздев А.Е., Кузовлева О.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Архипов И.К., Абрамова В.И., Кутепов С.Н., Гвоздев А.Е., Кузовлева О.В.</copyright-holder><copyright-holder xml:lang="en">Arkhipov I.K., Abramova V.I., Kutepov S.N., Gvozdev A.E., Kuzovleva O.V.</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/1150">https://www.chebsbornik.ru/jour/article/view/1150</self-uri><abstract><p>С учетом микропластичности в окрестностях пор получено эффективное уравнение разгрузки. Учтено влияние пористости на остаточную деформацию при одноосном растяжении образца пористого металлического композита. Установлена нелинейность по деформациям кривой разгрузки, которая вызвана микропластичностью. Приведены численные расчеты остаточной деформации в зависимости от начального напряжения и пористости.</p></abstract><trans-abstract xml:lang="en"><p>Aking into account the microplasticity in the vicinity of the pores, an effective discharge equation is obtained. The influence of porosity on the residual deformation under uniaxial tension of a sample of a porous metal composite is taken into account. The nonlinearity in the deformations of the discharge curve, which is caused by microplasticity, is established. Numerical calculations of the residual strain as a function of the initial stress and porosity are given.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>композиционные материалы</kwd><kwd>матрица</kwd><kwd>микропластические зоны</kwd><kwd>оста- точные деформации</kwd><kwd>пористость.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>composite materials</kwd><kwd>matrix</kwd><kwd>microplastic zones</kwd><kwd>residual deformations</kwd><kwd>porosity.</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">Архипов И. К., Толоконников Л. А. Эффективные соотношения между напряжениями и деформациями в корреляционной теории упругопластических деформаций. Известия АНСССР. Механика твердого тела. – 1984.– №2. – С. 196-198.</mixed-citation><mixed-citation xml:lang="en">Arkhipov I. K., Tolokonnikov L. 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