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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">ikbgu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Кабардино-Балкарского государственного университета</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Kabardino-Balkarian State University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2221-7789</issn><publisher><publisher-name>Kabardino-Balkarian State University named after Kh. M. Berbekov</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31143/2221-7789-2025-1-10-15</article-id><article-id custom-type="edn" pub-id-type="custom">JDGPRW</article-id><article-id custom-type="elpub" pub-id-type="custom">ikbgu-19</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>Физика</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Physics</subject></subj-group></article-categories><title-group><article-title>Механизмы разрушения биоразлагаемых полимерных композитов в условиях ударного нагружения</article-title><trans-title-group xml:lang="en"><trans-title>The failure mechanisms of biodegradable polymer composites in the conditions of impact loading</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>Долбин</surname><given-names>Илья Игоревич</given-names></name><name name-style="western" xml:lang="en"><surname>Dolbin</surname><given-names>Ilya I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Высшая школа сервиса, студент 2 курса.</p></bio><bio xml:lang="en"><p>Higher School of Service, 2nd year student</p></bio><email xlink:type="simple">i_dolbin@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>Козлов</surname><given-names>Геннадий Викторович</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlov</surname><given-names>Gennady V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор физико-математических наук, профессор, учёный-физик.</p></bio><bio xml:lang="en"><p>Doctor of physico-mathematical sciences, professor, physicist</p></bio><email xlink:type="simple">i_dolbin@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>Кудров</surname><given-names>Юрий Владимирович</given-names></name><name name-style="western" xml:lang="en"><surname>Kudrov</surname><given-names>Yuri V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Старший преподаватель.</p></bio><bio xml:lang="en"><p>Senior Lecturer</p></bio><email xlink:type="simple">i_dolbin@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Давыдова</surname><given-names>Владлена Вильдановна</given-names></name><name name-style="western" xml:lang="en"><surname>Davydova</surname><given-names>Vladlena V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Старший преподаватель.</p></bio><bio xml:lang="en"><p>Senior Lecturer</p></bio><email xlink:type="simple">i_dolbin@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Викторович</surname><given-names>Игорь Долбин</given-names></name><name name-style="western" xml:lang="en"><surname>Dolbin</surname><given-names>Igor V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Старший научный сотрудник центра прогрессивных материалов и аддитивных технологий</p></bio><bio xml:lang="en"><p>Senior Researcher at the Center for Progressive Materials and Additive Technologies</p></bio><email xlink:type="simple">i_dolbin@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский государственный университет туризма и сервиса</institution></aff><aff xml:lang="en"><institution>Russian State University of Tourism and Service</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Российский государственный университет туризма и сервиса</institution></aff><aff xml:lang="en"><institution>State University of Tourism and Service</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Кабардино-Балкарский государственный университет им. Х.М. Бербекова</institution></aff><aff xml:lang="en"><institution>Kabardino-Balkarian State University named after Kh.M. Berbekov</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>15</day><month>12</month><year>2025</year></pub-date><volume>15</volume><issue>1</issue><fpage>10</fpage><lpage>15</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Долбин И.И., Козлов Г.В., Кудров Ю.В., Давыдова В.В., Викторович И.Д., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Долбин И.И., Козлов Г.В., Кудров Ю.В., Давыдова В.В., Викторович И.Д.</copyright-holder><copyright-holder xml:lang="en">Dolbin I.I., Kozlov G.V., Kudrov Y.V., Davydova V.V., Dolbin I.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.izvestiakbsu.ru/jour/article/view/19">https://www.izvestiakbsu.ru/jour/article/view/19</self-uri><abstract><p>В рамках фрактального анализа исследован процесс разрушения двух биоразлагае- мых композитов на основе полилактонной кислоты, армированных разными типами природных воло- кон. Основным фактором, определяющим резкое повышение ударной вязкости этих биокомпозитов, является фрактальная размерность их структуры, контролирующая тип разрушения и, как следст- вие, величину поглощаемой в условиях ударного нагружения энергии. Условием перехода от квазихруп- кого к квазипластичному разрушению служит достижение фрактальной размерностью структуры биокомпозита величины 2,7. Межфазные взаимодействия налагают ограничения на поглощаемую в процессе ударного нагружения механическую энергию, снижая ударную вязкость. При больших раз- мерностях структуры биокомпозитов (&gt;2,87) в них реализуется эффект сверхпластичности, т. е. об- разец деформируется, но не разрушается в условиях ударных испытаний.</p></abstract><trans-abstract xml:lang="en"><p>The failure process of two biodegradable composites on the base of polylactic acid, reinforced with two types of different natural fibers was studied within the framework of fractal analysis. The fractal di- mension of their structure, controlling failure type and as consequence, the value of energy, adsorbed in condi- tions of impact loading, is the main factor, defining sharp enhancement of impact toughness of these biocompo- sites. The condition of transition from quasibrittle to quasiductile failure serves achievement by fractal dimen- sion of structure of biocomposite the value of 2.7. Interfacial interactions are imposed restrictions on adsorbed in process of impact loading mechanical energy, reducing impact toughness. At large dimensions of biocompo- sites structure (&gt;2.87) in them the effect of superplasticity, i.e. sample is deformed, but not failured in the con- ditions of impact tests.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Биокомпозит</kwd><kwd>природное волокно</kwd><kwd>фрактальная размерность</kwd><kwd>ударная вязкость</kwd><kwd>межфазная адгезия</kwd><kwd>механизм разрушения</kwd><kwd>сверхпластичность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Biocomposite</kwd><kwd>natural fiber</kwd><kwd>fractal dimension</kwd><kwd>impact toughness</kwd><kwd>interfacial adhesion</kwd><kwd>failure mechanism</kwd><kwd>superplasticity</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">Mohanty A.K., Misra M., Hinrichsen G. Biofibres, biodegradable polymers and biocomposites: an over-view // Macromolecular Materials and Engineering. 2000. V. 276/277, N 1. 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