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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">Frontier Materials &amp; Technologies</journal-id><journal-title-group><journal-title xml:lang="en">Frontier Materials &amp; Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Frontier Materials &amp; Technologies</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2782-4039</issn><issn publication-format="electronic">2782-6074</issn><publisher><publisher-name xml:lang="en">Togliatti State University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">558</article-id><article-id pub-id-type="doi">10.18323/2782-4039-2022-3-1-85-95</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Finite-element simulation of fatigue behavior of a medical implant produced from titanium in the large-grained and nanostructured states</article-title><trans-title-group xml:lang="ru"><trans-title>Конечно-элементное моделирование усталостного поведения медицинского имплантата, изготовленного из титана в крупнозернистом и наноструктурном состояниях</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kapustin</surname><given-names>Aleksey V.</given-names></name><name xml:lang="ru"><surname>Капустин</surname><given-names>Алексей Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>postgraduate student of Chair of Materials Science and Physics of Metals</p></bio><bio xml:lang="ru"><p>аспирант кафедры материаловедения и физики металлов</p></bio><email>kapustin129@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7503-8949</contrib-id><name-alternatives><name xml:lang="en"><surname>Enikeev</surname><given-names>Nariman A.</given-names></name><name xml:lang="ru"><surname>Еникеев</surname><given-names>Нариман Айратович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Doctor of Sciences (Physics and Mathematics), senior researcher of laboratory “Metals and Alloys under the Extreme Conditions”, professor of Chair of Materials Science and Physics of Metals</p></bio><bio xml:lang="ru"><p>доктор физико-математических наук, старший научный сотрудник лаборатории «Металлы и сплавы при экстремальных воздействиях», профессор кафедры материаловедения и физики металлов</p></bio><email>nariman.enikeev@ugatu.su</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Ufa State Aviation Technical University, Ufa</institution></aff><aff><institution xml:lang="ru">Уфимский государственный авиационный технический университет, Уфа</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Bashkir State University, Ufa</institution></aff><aff><institution xml:lang="ru">Башкирский государственный университет, Уфа</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-09-30" publication-format="electronic"><day>30</day><month>09</month><year>2022</year></pub-date><issue>3-1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>85</fpage><lpage>95</lpage><history><date date-type="received" iso-8601-date="2022-09-30"><day>30</day><month>09</month><year>2022</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://vektornaukitech.ru/jour/article/view/558">https://vektornaukitech.ru/jour/article/view/558</self-uri><abstract xml:lang="en"><p>Nowadays, to improve the quality of life, dental implantation is widely used, and ensuring proper functioning and durability of the implantable devices is one of the most crucial tasks for modern-day dentistry. The development of new biomaterials with improved properties, such as nanostructured materials, widens the possibilities of medical goods miniaturization to create new-generation implants. Computer simulation plays a large part when designing these devices, which allows effectively specifying an implant design depending on the materials used and operation conditions. This paper presents the results of modeling using the finite-element method for the comparative analysis of an implant’s deformed behavior within the cyclic load conditions. The authors considered large-grained commercially pure titanium and nanostructured titanium with improved properties as implant material. The authors analyzed various arrangements of an implanted device according to the fatigue testing conditions – considering and not considering the influence of an abutment and the base reaction. The study identified the implant’s characteristics, such as fatigue endurance and safety factor for a specific type of arrangement and material type, as well as the equivalent stress distribution, including taking into account a sign. The research shows that the most realistic results can be achieved when modeling a device in the “abutment – implant – base” arrangement. The study demonstrates that strength characteristics crucial for product destruction are described by the maximum principal stresses, and the studied implant configuration ensures its longstanding proper functioning in the case of its production exceptionally from nanostructured titanium with enhanced properties.</p></abstract><trans-abstract xml:lang="ru"><p>В настоящее время для повышения качества жизни широко используется дентальная имплантация, и обеспечение надежного функционирования и долговечности имплантируемых изделий представляет собой одну из важнейших задач современной стоматологии. Разработка новых биоматериалов с улучшенными свойствами, таких как наноструктурные материалы, расширяет возможности миниатюризации медицинских изделий для создания имплантатов нового поколения. При проектировании этих устройств большую роль играет компьютерное моделирование, позволяющее эффективно определять дизайн имплантата в зависимости от используемых материалов и условий эксплуатации. В настоящей работе представлены результаты моделирования методом конечных элементов для сравнительного анализа деформированного поведения имплантата в условиях циклической нагрузки. В качестве материала имплантата рассматривали крупнозернистый технически чистый титан и наноструктурный титан с улучшенными свойствами. Рассматривали различные компоновки имплантируемого устройства в соответствии с условиями проведения усталостных испытаний – с учетом и без учета влияния абатмента и реакции основания. Установлены характеристики имплантата, такие как усталостная долговечность и коэффициент запаса для конкретного типа компоновки и типа материала, а также распределение эквивалентных напряжений, в том числе с учетом знака. Показано, что наиболее реалистичные результаты достигаются при моделировании устройства в компоновке «абатмент – имплантат – база». Продемонстрировано, что прочностные характеристики, определяющие разрушение изделия, описываются максимальными главными напряжениями, а исследованная конфигурация имплантата обеспечивает его длительное надежное функционирование в случае изготовления исключительно из наноструктурного титана с повышенными свойствами.</p></trans-abstract><kwd-group xml:lang="en"><kwd>dental implant</kwd><kwd>finite-element method</kwd><kwd>nanostructured materials</kwd><kwd>titanium</kwd><kwd>strength</kwd><kwd>fatigue properties</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>дентальный имплантат</kwd><kwd>метод конечных элементов</kwd><kwd>наноструктурные материалы</kwd><kwd>титан</kwd><kwd>прочность</kwd><kwd>усталостные свойства</kwd></kwd-group><funding-group><funding-statement xml:lang="en">N.A. Enikeev is grateful to the support of the research laboratory of Eurasian REC “Metals and Alloys under the Extreme Conditions” of the Federal State Budgetary Educational Institution of Higher Education “USATU” within the state assignment (agreement No. 075-03-2021-014/4) of the Ministry of Science and Higher Education of the Russian Federation.</funding-statement><funding-statement xml:lang="ru">Н.А. Еникеев признателен поддержке научно-исследовательской лаборатории Евразийского НОЦ «Металлы и сплавы при экстремальных воздействиях» ФГБОУ ВО «УГАТУ» в рамках государственного задания (соглашение № 075-03-2021-014/4) Министерства науки и высшего образования РФ.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Edalati K., Bachmaier A., Beloshenko V.A., Beygelzimer Ya., Blank V.D., Botta W.J., Bryla K., Cizek J., Divinski S., Enikeev N.A., Estrin Yu., Faraji G., Figueiredo R.B., Fuji M., Furuta T., Grosdidier T., Gubicza J., Hohenwarter A., Horita Z., Huot J., Ikoma Y., Janecek M., Kawasaki M., Kral P., Kuramoto S., Langdon T.G., Leiva D.R., Levitas V.I., Mazilkin A., Mito M., Miyamoto H., Nishizaki T., Pippan R., Popov V.V., Popova E.N., Purcek G., Renk O., Revesz A., Sauvage X., Sklenicka V., Skrotzki W., Straumal B.B., Suwas S., Toth L.S., Tsuji N., Valiev R.Z., Wilde G., Zehetbauer M.J., Zhu X. 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