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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">vestift</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-технических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physical-technical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8358</issn><issn pub-type="epub">2524-244X</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8358-2018-63-4-416-423</article-id><article-id custom-type="elpub" pub-id-type="custom">vestift-404</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>МАШИНОСТРОЕНИЕ, МЕХАНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MECHANICAL ENGINEERING AND MECHANICS</subject></subj-group></article-categories><title-group><article-title>Решение задачи гибки листа методом полей линий скольжения</article-title><trans-title-group xml:lang="en"><trans-title>Solution of the problem of sheet bending by the slip line field method</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>Кожевникова</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozhevnikova</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, главный научный сотрудник лаборатории предельной деформируемости и поперечно-клиновой прокатки</p></bio><bio xml:lang="en"><p>D. Sc. (Engineering), Chief Researcher of the Laboratory of Extreme Deformability and Cross-Wedge Rolling</p></bio><email xlink:type="simple">fti@tut.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Физико-технический институт Национальной академии наук Беларуси, Минск</institution></aff><aff xml:lang="en"><institution>Physical Technical Institute of the National Academy of Sciences of Belarus, Minsk</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>11</day><month>01</month><year>2019</year></pub-date><volume>63</volume><issue>4</issue><fpage>416</fpage><lpage>423</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кожевникова Г.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Кожевникова Г.В.</copyright-holder><copyright-holder xml:lang="en">Kozhevnikova G.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://vestift.belnauka.by/jour/article/view/404">https://vestift.belnauka.by/jour/article/view/404</self-uri><abstract><p>Одним из ограничений, налагаемых на процесс гибки листа, является возможность образования трещин на поверхности. Для прогнозирования данного вида разрушения металла необходима информация о пластических свойствах материала и напряженном состоянии в очаге деформации в процессе гибки. Приведено решение задачи гибки листа в условиях плоско-деформированного состояния на жесткой цилиндрической оправке методом графического построения поля линий скольжения. В качестве модели материала рассмотрено идеально-пластическое тело. Определены напряжения в очаге деформации и накопленные деформации. Процесс гибки квалифицирован как однонаправленный и монотонный. Установлено, что среднее напряжение на наружной поверхности листа при гибке равно 1 и не зависит от толщины листа и радиуса жесткой цилиндрической оправки. Осуществлена проверка точности графического решения. Полученное решение может быть положено в основу экспериментального метода испытания пластических свойств металлов.</p></abstract><trans-abstract xml:lang="en"><p>One of the limitations imposed on this process of bending is the possibility of cracking on the surface of the sheet during bending. To predict this type of metal destruction, information is needed on the plastic properties of the material and the stress state in the deformation zone during the bending process. The solution of the problem of sheet bending under conditions of a flat-strained state by graphical construction of the slip line field using a rigid cylindrical mandrel has been analyzed. The material model is a perfectly plastic body. The stresses in the deformation zone and accumulated strains have been determined. The bending process is characterized as unidirectional and monotonous. It has been determined that the mean stress on the outer surface of the sheet during bending equals to 1, and it does not depend on the sheet thickness and the radius of the rigid cylindrical mandrel. Verification of the accuracy of the graphical solution is made. The resulting solution can be used as the basis for an experimental method for testing the plastic properties of metals.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пластическое деформирование</kwd><kwd>идеально-пластическое тело</kwd><kwd>напряженно-деформированное состояние</kwd><kwd>линии скольжения</kwd><kwd>пластичность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>plastic straining</kwd><kwd>perfectly plastic body</kwd><kwd>stress-strain state</kwd><kwd>slip lines</kwd><kwd>plasticity</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">Кожевникова, Г. В. Теория и практика поперечно-клиновой прокатки / Г. В. Кожевникова. – Минск: Беларус. навука, 2010. – 291 с.</mixed-citation><mixed-citation xml:lang="en">Kozhevnikova G. V. Theory and Practice of Cross-Wedge Rolling. Мinsk, Belorusskaya nauka Publ., 2010. 291 p. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Кожевникова, Г. В. Построение эпюр контактных напряжений на границе инструмент–заготовка при поперечной прокатке / Г. В. Кожевникова // Трение и износ. – 2005. – Т. 26, № 1. – С. 94–99.</mixed-citation><mixed-citation xml:lang="en">Kozhevnikova G. V. Plotting the contact stress epures at the interface between the tool and workpiece during cross rolling. Trenie i iznos = Journal of Friction and Wear, 2005, vol. 26, no. 1, pp. 94–99 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Кожевникова, Г. В. Самоустановление сил трения при поперечной прокатке / Г. В. Кожевникова // Трение и износ. – 2016. – Т. 37, № 4. – С. 421–426.</mixed-citation><mixed-citation xml:lang="en">Kozhevnikova G. V. Self-setting of forces of friction during cross rolling. Journal of Friction and Wear, 2016. vol. 37, no. 4, pp. 324–329. https://doi.org/10.3103/S1068366616040073</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Kozhevnikovа, G. Cross-wedge rolling / G. Kozhevnikova. – Minsk: Belorusskaya nauka, 2012. – 321 p. 5. Теоретические основы ковки и горячей объемной штамповки / Е. М. Макушок [и др.]. − Минск: Наука и техника, 1968. − 408 с.</mixed-citation><mixed-citation xml:lang="en">Kozhevnikovа G. Cross-Wedge Rolling. Мinsk, Belorusskaya nauka Publ., 2012. 321 p.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Shchukin, V. Y. Cross-wedge rolling at PTI NAS Belarus / V. Y. Shchukin, G. V. Kozhevnikova, V. V. Petrenko // Appl. Mech. Mater. – 2012. – Vol. 201–202. – P. 1198–1202. https://doi.org/10.4028/www.scientiﬁc.net/AMM.201¬202.1198</mixed-citation><mixed-citation xml:lang="en">Makushok E. M., Matusevich A. S., Severdenko V. P., Segal V. M. Theoretical Foundations of Forging and Hot Forging. Minsk, Nauka i tekhnika Publ., 1968. 408 p. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Кожевникова, Г. В. Исследование кинематики течения металла при поперечно-клиновой прокатке с использованием компьютерного моделирования / Г. В. Кожевникова // Вес. Нац. акад. навук Беларусi. Сер. фiз.-тэхн. навук. – 2013. – № 1. – С. 47–53.</mixed-citation><mixed-citation xml:lang="en">Shchukin V. Y., Kozhevnikova G. V., Petrenko V. V. Cross-wedge rolling at PTI NAS Belarus. Applied Mechanics and Materials, 2012, vol. 201–202, pp. 1198–1202. https://doi.org/10.4028/www.scientiﬁc.net/AMM.201-202.1198</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Kozhevnikova G. V. Analysis of metal ﬂow kinematics under cross-wedge rolling using computer simulation. Vestsi Natsyyanal’nai akademii navuk Belarusi. Seryya ﬁzika-technichnych navuk = Proceedings of the National Academy of Sciences of Belarus. Physical-technical series, 2013, no. 1, pp. 47–53 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Kozhevnikova G. V. Analysis of metal ﬂow kinematics under cross-wedge rolling using computer simulation. Vestsi Natsyyanal’nai akademii navuk Belarusi. Seryya ﬁzika-technichnych navuk = Proceedings of the National Academy of Sciences of Belarus. Physical-technical series, 2013, no. 1, pp. 47–53 (in Russian).</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
