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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">dan-101</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>ХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>ОСОБЕННОСТИ ДЕФОРМИРОВАНИЯ РАЗЛИЧНЫХ МОДЕЛЕЙ ГРАФЕНА ПРИ РАСТЯЖЕНИИ</article-title><trans-title-group xml:lang="en"><trans-title>BEHAVIOR OF DIFFERENT MODELS OF GRAPHENE UNDER TENSION</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>МАТУЛИС</surname><given-names>ВАДИМ Э.</given-names></name><name name-style="western" xml:lang="en"><surname>MATULIS</surname><given-names>VADIM E.</given-names></name></name-alternatives><email xlink:type="simple">matulisvad@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>МАТУЛИС</surname><given-names>ВИТАЛИЙ Э.</given-names></name><name name-style="western" xml:lang="en"><surname>MATULIS</surname><given-names>VITALY E.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>НАГОРНЫЙ</surname><given-names>Ю. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>NAGORNY</surname><given-names>Yu. E.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>РЕПЧЕНКОВ</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>REPCHENKOV</surname><given-names>V. I.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ИВАШКЕВИЧ</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>IVASHKEVICH</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>академик</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>НИИ физико-химических проблем БГУ, Минск</institution><country>Belarus</country></aff><aff xml:lang="ru" id="aff-2"><institution>Белорусский государственный университет, Минск</institution><country>Belarus</country></aff><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>01</day><month>06</month><year>2016</year></pub-date><volume>59</volume><issue>3</issue><fpage>47</fpage><lpage>50</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; МАТУЛИС В.Э., МАТУЛИС В.Э., НАГОРНЫЙ Ю.Е., РЕПЧЕНКОВ В.И., ИВАШКЕВИЧ О.А., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">МАТУЛИС В.Э., МАТУЛИС В.Э., НАГОРНЫЙ Ю.Е., РЕПЧЕНКОВ В.И., ИВАШКЕВИЧ О.А.</copyright-holder><copyright-holder xml:lang="en">MATULIS V.E., MATULIS V.E., NAGORNY Y.E., REPCHENKOV V.I., IVASHKEVICH O.A.</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://doklady.belnauka.by/jour/article/view/101">https://doklady.belnauka.by/jour/article/view/101</self-uri><abstract><p>Выполнены расчеты величин модуля Юнга и коэффициента Пуассона моделей графена в зависимости от их размера с использванием трех принципиально различающихся методов: конечных элементов, полуэмпирического квантовохимического метода PM6, методов ab initio и DFT. Все три группы методов предсказывают монотонное увеличение модуля Юнга с ростом размера образца с выходом графиков на асимптоту. Рассчитанное в рамках полуэмпирического метода PM6 значение модуля Юнга сходится к 1,01 ТПа, достигая указанного значения для модели 9 × 15 (C304H50). Эта величина хорошо согласуется с имеющимися литературными данными, полученными экспериментальными и расчетными методами для массивного образца графена.</p></abstract><trans-abstract xml:lang="en"><p>Young’s modulus and Poisson’s ratio for graphene sheet models have been calculated in the framework of the finite element method as well as using semi-empirical PM6 and ab initio and DFT approaches. All three groups of the methods predict a monotonic increase of Young’s modulus with increasing a sample size with turning the curves to asymptote for bulk samples. Young’s modulus value calculated using quantum-chemical method PM6 converges to 1.01 TPa, reaching this value for the 9 × 15 model (C304H50). This value is in a good agreement with the literature data obtained both experimentally and theoretically for a bulk sample of graphene.</p></trans-abstract></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Li C. // Int. J. Solids Struct. 2003. Vol. 40. P. 2487–2499.</mixed-citation><mixed-citation xml:lang="en">Li C. // Int. J. Solids Struct. 2003. Vol. 40. P. 2487–2499.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Гольдштейн Р. В., Ченцов А. В. // Изв. РАН МТТ. 2005. № 4. C. 57-74.</mixed-citation><mixed-citation xml:lang="en">Гольдштейн Р. В., Ченцов А. В. // Изв. РАН МТТ. 2005. № 4. C. 57-74.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Журавков М. А., Нагорный Ю. Е., Репченков В. 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