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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Traumatology and Orthopedics of Russia</journal-id><journal-title-group><journal-title xml:lang="en">Traumatology and Orthopedics of Russia</journal-title><trans-title-group xml:lang="ru"><trans-title>Травматология и ортопедия России</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2311-2905</issn><issn publication-format="electronic">2542-0933</issn><publisher><publisher-name xml:lang="en">Vreden National Medical Research Center of Traumatology and Orthopedics</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">334</article-id><article-id pub-id-type="doi">10.21823/2311-2905-2013--2-72-83</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Theoretical and experimental studies</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Теоретические и экспериментальные исследования</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="zh"><subject>Theoretical and experimental studies</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Influence of the mineral bond between associations of crystallites on bone matrix mechanical properties. modeling by the finite element method</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние минеральной связи между объединениями кристаллитов на механические свойства костного матрикса. моделирование методом конечных элементов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Avrunin</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Аврунин</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>a_avrunin@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Semenov</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Семёнов</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>semenov.artem@googlemail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Fedorov</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Фёдоров</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>fedorov.ilya.v@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mel’Nikov</surname><given-names>B. E.</given-names></name><name xml:lang="ru"><surname>Мельников</surname><given-names>Б. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>melnikovboris@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Doctorov</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Александр Альбертович</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>doctorovaa@mail.ru</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Parshin</surname><given-names>L. K.</given-names></name><name xml:lang="ru"><surname>Паршин</surname><given-names>Л. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>kafedra@ksm.spbstu.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Vreden Russian Research Institute of Traumatology and Orthopedics</institution></aff><aff><institution xml:lang="ru">ФГБУ «Российский научно-исследовательский институт травматологии и ортопедии им. Р.Р. Вредена» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">St.-Petersburg State Politechnical University</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский государственный политехнический университет</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">All-Russian Research Institute on Medicinal and Aromatic Plants (VILAR), Research Center of Biomedical Technologies</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский государственный политехнический университет</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">St.-Petersburg State Politechnical University</institution></aff><aff><institution xml:lang="ru">Научно-исследовательский центр биомедицинских технологий ГНУ «Всероссийский институт лекарственных и ароматических растений» Россельхозакадемии</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2013-06-30" publication-format="electronic"><day>30</day><month>06</month><year>2013</year></pub-date><volume>19</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>72</fpage><lpage>83</lpage><history><date date-type="received" iso-8601-date="2016-11-01"><day>01</day><month>11</month><year>2016</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://journal.rniito.org/jour/article/view/334">https://journal.rniito.org/jour/article/view/334</self-uri><abstract xml:lang="en"><p>For the first time on the basis of computer modeling using the finite element method the mechanical role of mineral compounds, binding all of the bone minerals in the whole monolith was evaluated. By multivariate computational experiments the authors established the qualitative features and obtained the quantitative assessment of the influence of the bridges on the stiffness and stress-strain state of the representative volume element (RVE). The effective elastic moduli of the nanocomposite bone RVE were estimated by the of finite element homogenization method taking into account the availability of bridges. The presence of the bridge enhances bone stiffness regardless of the direction of acting loads. Consequently, bridge plays an important biological role in increasing the strength properties of the skeleton at nonstandard directions of the load. Data presented in this paper show an extremely complex mechanical phenomena developing in the mineral matrix, which can be adequately assessed only by using a computer modeling based on the morphologically correct structural relationships of its components.</p></abstract><trans-abstract xml:lang="ru"><p>Впервые на основе компьютерного моделирования с использованием метода конечных элементов оценена механическая роль минерального соединения, связывающего все минералы кости в целостный монолит. Путем многовариантных вычислительных экспериментов установлены качественные особенности и получены количественные оценки влияния перемычек на жесткость и напряженно-деформированное состояние элементарного представительного объема (ЭПО). Методом конечно-элементной гомогенизации определены эффективные упругие модули ЭПО нанокомпозита костной ткани с учетом наличия перемычек. Установлено, что наличие перемычки увеличивает жесткость костной ткани независимо от направления действующих нагрузок и, следовательно, перемычка играет биологически важную роль, повышая прочностные свойства скелета при нестандартных направлениях нагрузки. Представленные в работе данные свидетельствуют о крайне сложных механических феноменах развивающихся в минеральном матриксе, которые можно адекватно оценивать только при использовании компьютерного моделирования на основе морфологически корректных структурных отношений его компонентов.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>конечно-элементные расчеты</kwd><kwd>костный матрикс</kwd><kwd>механические свойства</kwd><kwd>модель наноуровня кости</kwd><kwd>finite-element simulations</kwd><kwd>bone matrix</kwd><kwd>mechanical properties</kwd><kwd>nanolevel bone modeling</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Аврунин* А.С., Паршин Л.К., Аболин А.Б. 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