<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">blackmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Черная Металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-0797</issn><issn pub-type="epub">2410-2091</issn><publisher><publisher-name>National University of Science and Technology "MISIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0368-0797-2025-3-297-304</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2914</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>ИННОВАЦИИ В МЕТАЛЛУРГИЧЕСКОМ ПРОМЫШЛЕННОМ И ЛАБОРАТОРНОМ ОБОРУДОВАНИИ, ТЕХНОЛОГИЯХ И МАТЕРИАЛАХ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INNOVATIONS IN METALLURGICAL INDUSTRIAL AND LABORATORY EQUIPMENT, TECHNOLOGIES AND MATERIALS</subject></subj-group></article-categories><title-group><article-title>Оптимизационное моделирование трещиностойкости керамической оболочковой формы при охлаждении в ней стальной отливки</article-title><trans-title-group xml:lang="en"><trans-title>Optimization modeling of crack resistance  of ceramic shell mold during cooling of steel casting in it</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9594-4068</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Евстигнеев</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Evstigneev</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Иванович Евстигнеев, д.т.н., профессор, главный научный сотрудник Управления научно-исследовательской деятельностью</p><p>Россия, 681013, Хабаровский край, Комсомольск-на-Амуре, пр. Ленина, 27</p></bio><bio xml:lang="en"><p>Aleksei I. Evstigneev, Dr. Sci. (Eng.), Prof., Chief Researcher of the Department of Research Activities</p><p>27 Lenina Ave., Komsomolsk-on-Amur, Khabarovsk Territory 681013, Russian Federation</p></bio><email xlink:type="simple">diss@knastu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5142-2455</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернышова</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernyshova</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дарья Витальевна Чернышова, аспирант кафедры «Авиастрое­ние»</p><p>Россия, 681013, Хабаровский край, Комсомольск-на-Амуре, пр. Ленина, 27</p></bio><bio xml:lang="en"><p>Dar’ya V. Chernyshova, Postgraduate of the Chair of Aircraft Engineering</p><p>27 Lenina Ave., Komsomolsk-on-Amur, Khabarovsk Territory 681013, Russian Federation</p></bio><email xlink:type="simple">daracernysova744@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0200-1675</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Одиноков</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Odinokov</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валерий Иванович Одиноков, д.т.н., профессор, главный научный сотрудник Управления научно-исследовательской деятельностью</p><p>Россия, 681013, Хабаровский край, Комсомольск-на-Амуре, пр. Ленина, 27</p></bio><bio xml:lang="en"><p>Valerii I. Odinokov, Dr. Sci. (Eng.), Prof., Chief Researcher of the Department of Research Activities</p><p>27 Lenina Ave., Komsomolsk-on-Amur, Khabarovsk Territory 681013, Russian Federation</p></bio><email xlink:type="simple">79122718858@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8023-316X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дмитриев</surname><given-names>Э. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dmitriev</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Эдуард Анатольевич Дмитриев, д.т.н., доцент, ректор</p><p>Россия, 681013, Хабаровский край, Комсомольск-на-Амуре, пр. Ленина, 27</p></bio><bio xml:lang="en"><p>Eduard A. Dmitriev, Dr. Sci. (Eng.), Prof., Assist. Prof., Rector</p><p>27 Lenina Ave., Komsomolsk-on-Amur, Khabarovsk Territory 681013, Russian Federation</p></bio><email xlink:type="simple">rector@knastu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0667-2468</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Евстигнеева</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Evstigneeva</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анна Алексеевна Евстигнеева, магистрант кафедры «Прикладная математика»</p><p>Россия, 681013, Хабаровский край, Комсомольск-на-Амуре, пр. Ленина, 27</p></bio><bio xml:lang="en"><p>Anna A. Evstigneeva, MA Student of the Chair “Applied Mathematics”</p><p>27 Lenina Ave., Komsomolsk-on-Amur, Khabarovsk Territory 681013, Russian Federation</p></bio><email xlink:type="simple">annka.ewstic@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Комсомольский-на-Амуре государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Komsomolsk-on-Amur State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>01</day><month>07</month><year>2025</year></pub-date><volume>68</volume><issue>3</issue><fpage>297</fpage><lpage>304</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Евстигнеев А.И., Чернышова Д.В., Одиноков В.И., Дмитриев Э.А., Евстигнеева А.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Евстигнеев А.И., Чернышова Д.В., Одиноков В.И., Дмитриев Э.А., Евстигнеева А.А.</copyright-holder><copyright-holder xml:lang="en">Evstigneev A.I., Chernyshova D.V., Odinokov V.I., Dmitriev E.A., Evstigneeva A.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://fermet.misis.ru/jour/article/view/2914">https://fermet.misis.ru/jour/article/view/2914</self-uri><abstract><p>В статье приводится подробный анализ отечественных и зарубежных работ по исследованию напряженно-деформированного состояния в оболочковой форме (ОФ) при получении металлических отливок. Экспериментальные и теоретические исследования являются важными для совершенствования технологии получения качественных литейных изделий. В настоящей работе сформулирована и решена задача по снижению уровня напряженно-деформированного состояния в литейной керамической оболочковой форме путем уменьшения образующихся растягивающих напряжений на ее наружной поверхности за счет выполнения температурных швов (выточек). В качестве определяющего трещиностойкость параметра принимается нормальное растягивающее напряжение σ22 , возникающее на наружной поверхности ОФ в начальный момент заливки металла и охлаждения в ней стальной отливки. Рассматриваемая задача является осесимметричной. Оболочковая форма имеет сферические и цилиндрические участки. Авторы сформулировали целевую функцию, привели численную схему и разработанный алгоритм решения задачи на основе уравнений линейной теории упругости, уравнений теплопроводности и апробированных численных методов. Результатом решения модельной задачи являются найденное оптимальное геометрическое местоположение температурных швов в форме кольцевых выточек и их количество. Поля напряжений приводятся в виде эпюр по сечениям рассматриваемой области при наличии и отсутствии температурных швов. Для убедительности предлагаемого способа (выполнения температурных швов) в тестовом примере рассматривается наиболее жесткий вариант, в котором не используются установленные ранее в предыдущих работах факторы, влияющие на уменьшение растягивающих напряжений на внешней поверхности ОФ. Полученные результаты характеризуют стойкость керамической литейной формы к образованию трещин и демонстрируют целесо­образность и эффективность предложенной технологии изготовления литейной керамической оболочковой формы.</p></abstract><trans-abstract xml:lang="en"><p>The article provides a detailed analysis of domestic and foreign research works on the stress-strain state in a shell mold during production of metal castings. Experimental and theoretical studies are important for improving the technology of producing high-quality foundry products. In this paper, the problem of reducing the stress-strain state in a cast ceramic shell mold is formulated and solved by reducing the resulting tensile stresses on its outer surface by performing temperature seams (recesses). The parameter determining crack resistance is the normal tensile stress σ22 , which occurs on the outer surface of the shell mold at the initial moment of casting the metal and cooling the steel casting in it. The problem under conside­ration is axisymmetric. The shell mold has spherical and cylindrical sections. The authors formulated the objective function, provided a numerical scheme and a developed algorithm for solving the problem based on the equations of linear elasticity theory, equations of thermal conductivity and proven numerical methods. The result of solving the model problem is the optimal geometric location of the temperature seams in the form of annular recesses and their number. Stress fields are shown in the form of plots along the sections of the area under consideration in the presence and absence of temperature seams. For the sake of convincing the proposed method (performing temperature seams), the test example considers the most rigid option, which does not use the factors established earlier in previous studies that affect the reduction of tensile stresses on external surface of the shell mold. The results obtained characterize the resistance of ceramic casting mold to cracking and demonstrate the feasibility and effectiveness of the proposed technology for manufacturing ceramic casting shell molds.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>литье по выплавляемым моделям</kwd><kwd>оболочковая форма</kwd><kwd>напряженное состояние</kwd><kwd>температурные швы</kwd><kwd>трещиностойкость</kwd><kwd>алгоритм решения</kwd><kwd>напряжение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>investment casting</kwd><kwd>shell mold</kwd><kwd>stress state</kwd><kwd>temperature seams</kwd><kwd>crack resistance</kwd><kwd>solution algorithm</kwd><kwd>stress</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 24-29-00214, https://rscf.ru/project/24-29-00214/.</funding-statement><funding-statement xml:lang="en">The work was supported by the Russian Science Foundation, grant No. 24-29-00214, https://rscf.ru/project/24-29-00214/.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Kanyo J.E., Schafföner S., Uwanyuze R.Sh., Leary K.S. An overview of ceramic molds for investment casting of nickel superalloys. Journal of the European Ceramic Society. 2020;40(15):4955–4973. https://doi.org/10.1016/j.jeurceramsoc.2020.07.013</mixed-citation><mixed-citation xml:lang="en">Kanyo J.E., Schafföner S., Uwanyuze R.Sh., Leary K.S. An overview of ceramic molds for investment casting of nickel superalloys. Journal of the European Ceramic Society. 2020;40(15):4955–4973. https://doi.org/10.1016/j.jeurceramsoc.2020.07.013</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Rafique M.M.A., Iqbal J. Modeling and simulation of heat transfer phenomena during investment casting. International Journal of Heat and Mass Transfer. 2009;52(7-8):2132–2139. http://doi.org/10.1016/j.ijheatmasstransfer.2008.11.007</mixed-citation><mixed-citation xml:lang="en">Rafique M.M.A., Iqbal J. Modeling and simulation of heat transfer phenomena during investment casting. International Journal of Heat and Mass Transfer. 2009;52(7-8):2132–2139. http://doi.org/10.1016/j.ijheatmasstransfer.2008.11.007</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Singh R. Mathematical modeling for surface hardness in investment casting applications. Journal of Mechanical Science and Technology. 2012;26:3625–3629. http://dx.doi.org/10.1007/s12206-012-0854-0</mixed-citation><mixed-citation xml:lang="en">Singh R. Mathematical modeling for surface hardness in investment casting applications. Journal of Mechanical Science and Technology. 2012;26:3625–3629. http://dx.doi.org/10.1007/s12206-012-0854-0</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Jafari H., Idris M.H., Ourdjini A. Effect of thickness and permeability of ceramic shell mould on in situ melted AZ91D investment casting. Applied Mechanics and Materials. 2014;465-466:1087–1092. http://dx.doi.org/10.4028/www.scientific.net/AMM.465-466.1087</mixed-citation><mixed-citation xml:lang="en">Jafari H., Idris M.H., Ourdjini A. Effect of thickness and permeability of ceramic shell mould on in situ melted AZ91D investment casting. Applied Mechanics and Materials. 2014;465-466:1087–1092. http://dx.doi.org/10.4028/www.scientific.net/AMM.465-466.1087</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Bansode S.N., Phalle V.M., Mantha S.S. Taguchi approach for optimization of parameters that reduce dimensional varia­tion in investment casting. Archives of Foundry Engineering. 2019;19(1):5–12. https://dx.doi.org/10.24425/afe.2018.125183</mixed-citation><mixed-citation xml:lang="en">Bansode S.N., Phalle V.M., Mantha S.S. Taguchi approach for optimization of parameters that reduce dimensional varia­tion in investment casting. Archives of Foundry Engineering. 2019;19(1):5–12. https://dx.doi.org/10.24425/afe.2018.125183</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Pattnaik S., Karunakar D.B., Jha P.K. Developments in investment casting process ‒ A review. Journal of Materials Processing Technology. 2012;212(11):2332–2348. https://doi.org/10.1016/j.jmatprotec.2012.06.003</mixed-citation><mixed-citation xml:lang="en">Pattnaik S., Karunakar D.B., Jha P.K. Developments in investment casting process ‒ A review. Journal of Materials Processing Technology. 2012;212(11):2332–2348. https://doi.org/10.1016/j.jmatprotec.2012.06.003</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang J., Li K.W., Ye H.W., Zhang D.Q., Wu P.W. Numerical simulation of solidification process for impeller investment cas­ting. Applied Mechanics and Materials. 2011;80-81:961–964. https://doi.org/10.4028/www.scientific.net/AMM.80-81.961</mixed-citation><mixed-citation xml:lang="en">Zhang J., Li K.W., Ye H.W., Zhang D.Q., Wu P.W. Numerical simulation of solidification process for impeller investment cas­ting. Applied Mechanics and Materials. 2011;80-81:961–964. https://doi.org/10.4028/www.scientific.net/AMM.80-81.961</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Dong Y.W., Li X.L., Zhao Q., Jun Y., Dao M. Modeling of shrinkage during investment casting of thin-walled hollow turbine blades. Journal of Materials Processing Technology. 2017;244:190–203. https://doi.org/10.1016/j.jmatprotec.2017.01.005</mixed-citation><mixed-citation xml:lang="en">Dong Y.W., Li X.L., Zhao Q., Jun Y., Dao M. Modeling of shrinkage during investment casting of thin-walled hollow turbine blades. Journal of Materials Processing Technology. 2017;244:190–203. https://doi.org/10.1016/j.jmatprotec.2017.01.005</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Rakoczy Ł., Cygan R. Analysis of temperature distribution in shell mould during thinwall superalloy casting and its effect on the resultant microstructure. Archives of Civil and Mechanical Engineering. 2018;18(4):1441–1450. https://doi.org/10.1016/j.acme.2018.05.008</mixed-citation><mixed-citation xml:lang="en">Rakoczy Ł., Cygan R. Analysis of temperature distribution in shell mould during thinwall superalloy casting and its effect on the resultant microstructure. Archives of Civil and Mechanical Engineering. 2018;18(4):1441–1450. https://doi.org/10.1016/j.acme.2018.05.008</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Sabau A.S. Numerical simulation of the investment cas­ting process. Transactions of American Foundry Society. 2005;113:407–417.</mixed-citation><mixed-citation xml:lang="en">Sabau A.S. Numerical simulation of the investment cas­ting process. Transactions of American Foundry Society. 2005;113:407–417.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Zheng K., Lin Y., Chen W., Liu L. Numerical simulation and optimization of casting process of copper alloy water-meter shell. Advances in Mechanical Engineering. 2020;12(5): 1–12. http://dx.doi.org/10.1177/1687814020923450</mixed-citation><mixed-citation xml:lang="en">Zheng K., Lin Y., Chen W., Liu L. Numerical simulation and optimization of casting process of copper alloy water-meter shell. Advances in Mechanical Engineering. 2020;12(5): 1–12. http://dx.doi.org/10.1177/1687814020923450</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Manzari M.T., Gethin D.T., Lewis R.W. Optimisation of heat transfer between casting and mould. International Journal of Cast Metals Research. 2000;13(4):199–206. https://doi.org/10.1080/13640461.2000.11819402</mixed-citation><mixed-citation xml:lang="en">Manzari M.T., Gethin D.T., Lewis R.W. Optimisation of heat transfer between casting and mould. International Journal of Cast Metals Research. 2000;13(4):199–206. https://doi.org/10.1080/13640461.2000.11819402</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Одиноков В.И., Евстигнеев А.И., Дмитриев Э.А., Намоконов А.Н., Евстигнеева А.А., Чернышова Д.В. Напряженно-деформированное состояние керамической оболочковой формы при формировании в ней стальной шарообразной отливки. Часть 1. Известия вузов. Черная металлургия. 2024;67(2):211‒218. https://doi.org/10.17073/0368-0797-2024-2-211-218</mixed-citation><mixed-citation xml:lang="en">Odinokov V.I., Evstigneev A.I., Dmitriev E.A., Namokonov A.N., Evstigneeva A.A., Chernyshova D.V. Stress-strain state of ceramic shell mold during formation of spherical steel casting in it. Part 1. Izvestiya. Ferrous Metallurgy. 2024;67(2):211‒218. https://doi.org/10.17073/0368-0797-2024-2-211-218</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Одиноков В.И., Евстигнеев А.И., Дмитриев Э.А., Намоконов А.Н., Евстигнеева А.А., Чернышова Д.В. Напряженно-деформированное состояние керамической оболочковой формы при формировании в ней стальной шарообразной отливки. Часть 2. Известия вузов. Черная металлургия. 2024;67(4):463‒470. https://doi.org/10.17073/0368-0797-2024-4-463-470</mixed-citation><mixed-citation xml:lang="en">Odinokov V.I., Evstigneev A.I., Dmitriev E.A., Namokonov A.N., Evstigneeva A.A., Chernyshova D.V. Stress-strain state of ceramic shell mold during formation of spherical steel casting in it. Part 2. Izvestiya. Ferrous Metallurgy. 2024;67(4): 463‒470. https://doi.org/10.17073/0368-0797-2024-4-463-470</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Математическое моделирование сложных технологических процессов / В.И. Одиноков, Б.Г. Каплунов, А.В. Песков, А.В. Баков. Москва: Наука; 2008:178.</mixed-citation><mixed-citation xml:lang="en">Odinokov V.I., Kaplunov B.G., Peskov A.V., Bakov A.V. Mathematical Modeling of Complex Technological Processes. Moscow: Nauka; 2008:178. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Одиноков В.И., Прокудин А.Н., Сергеева А.М., Севастьянов Г.М. Свидетельство о государственной регистрации программы для ЭВМ № 2012111389. ОДИССЕЙ. Зарегистрировано в Реестре программ для ЭВМ 13.12.2012.</mixed-citation><mixed-citation xml:lang="en">Odinokov V.I., Prokudin A.N., Sergeeva A.M., Sevastyanov G.M. Certificate of state registration of a computer program no. 2012111389. ODYSSEUS. Registered in the Register of Computer programs on 13.12.2012. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Ткачева А.В., Евстигнеева А.А. Об оценке влияния степени охвата опорным наполнителем сферической керамической оболочки и предварительной прокалки на уровень напряжений в материале формы при заливке и затвердевании в ней отливки. Вестник Чувашского государственного педагогического университета им. И.Я. Яковлева. Серия: Механика предельного состояния. 2024;(2(60)):24–34. https://doi.org/10.37972/chgpu.2024.60.2.002</mixed-citation><mixed-citation xml:lang="en">Tkacheva A.V., Evstigneeva A.A. On assessment the influence of the degree of coverage of a spherical ceramic shell by the supporting filler and preliminary calcination on the level of stress in the mold material during pouring and hardening of the casting in it. Bulletin of the I.Ya. Yakovlev Chuvash State Pedagogical University. Series: Mechanics of the limit state. 2024;(2(60)):24–34. (In Russ.). https://doi.org/10.37972/chgpu.2024.60.2.002</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Ткачева А.В., Евстигнеева А.А. О напряжениях в сферической керамической форме. В кн.: Вычислительные технологии и прикладная математика. Мате­риалы III научн. конференции с международ. участием, Комсомольск-на-Амуре, 7 – 11 октября 2024; отв. ред. Э.А. Дмитриев. Комсомольск-на-Амуре: ФГБОУ ВО «КнАГУ»; 2024;351–355.</mixed-citation><mixed-citation xml:lang="en">Tkacheva A.V., Evstigneeva A.A. On stresses in spherical ceramic mold. In: Computational Technologies and Applied Mathematics. Materials of the III Sci. Conf. with Int. Part. Moscow, Komsomolsk-on-Amur, October 7 – 11, 2024; Dmitriev E.A. ed. Komsomolsk-on-Amur: KnASU Federal State Budgetary Educational Institution; 2024;351–355. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Евстигнеев А.И., Дмитриев Э.А., Чернышова Д.В., Одиноков В.И., Евстигнеева А.А., Иванкова Е.П. Моделирование внешнего силового воздействия на стойкость оболочковой формы при заливке в нее стали. Математическое моделирование. 2022;34(5):61–72. https://doi.org/10.20948/mm-2022-05-04</mixed-citation><mixed-citation xml:lang="en">Evstigneev A.I., Dmitriev E.A., Chernyshova D.V., Odinokov V.I., Evstigneeva A.A., Ivankova E.P. Modeling of external force action on a shell mold for pouring steel. Matematicheskoe modelirovanie. 2022;34(5):61–72. (In Russ.). https://doi.org/10.20948/mm-2022-05-04</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Одиноков В.И., Дмитриев Э.А., Евстигнеев А.И., Свиридов А.В. Математическое моделирование процессов получения отливок в керамические оболочковые формы. Москва: Инновационное машиностроение; 2020:224.</mixed-citation><mixed-citation xml:lang="en">Odinokov V.I., Dmitriev E.A., Evstigneev A.I., Sviridov A.V. Mathematical Modeling of Processes for Obtaining Castings in Ceramic Shell Molds. Moscow: Innovatsionnoe mashinostroenie; 2020:224. (In Russ.).</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>
