<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Informacionnye Tehnologii</journal-id><journal-title-group><journal-title xml:lang="en">Informacionnye Tehnologii</journal-title><trans-title-group xml:lang="ru"><trans-title>Информационные технологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1684-6400</issn><publisher><publisher-name xml:lang="en">New Technologies Publishing House</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">702113</article-id><article-id pub-id-type="doi">10.17587/it.31.227-235</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Modeling and optimization</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Моделирование и оптимизация</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">The improvement of the mesh generation algorithm in the finite element method for accelerating the calculation of thermal stresses in solid bodies</article-title><trans-title-group xml:lang="ru"><trans-title>Улучшение алгоритма построения сетки в методе конечных элементов для ускорения расчета термических напряжений в твердых телах</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Raad</surname><given-names>M.</given-names></name><name xml:lang="ru"><surname>Раад</surname><given-names>М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD Student</p></bio><bio xml:lang="ru"><p>аспирант</p></bio><email>m.raad@hotmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Popov</surname><given-names>A. Y.</given-names></name><name xml:lang="ru"><surname>Попов</surname><given-names>А. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. of Tech. Sc., Professor</p></bio><bio xml:lang="ru"><p>д-р техн. наук, проф.</p></bio><email>alexpopov@bmstu.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">BMSTU "Bauman Moscow State Technical University"</institution></aff><aff><institution xml:lang="ru">Московский государственный технический университет имени Н. Э. Баумана</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-05-15" publication-format="electronic"><day>15</day><month>05</month><year>2025</year></pub-date><volume>31</volume><issue>5</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>227</fpage><lpage>235</lpage><history><date date-type="received" iso-8601-date="2026-02-03"><day>03</day><month>02</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-02-03"><day>03</day><month>02</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Informacionnye Tehnologii</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Информационные технологии</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Informacionnye Tehnologii</copyright-holder><copyright-holder xml:lang="ru">Информационные технологии</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/1684-6400/article/view/702113">https://journals.eco-vector.com/1684-6400/article/view/702113</self-uri><abstract xml:lang="en"><p>This study focuses on modeling the thermodiffusion process and thermal stresses using the finite element method (FEM). The paper examines algorithms for polygonal mesh generation and evaluates the influence of mesh quality on the accuracy of numerical methods in thermodiffusion calculations within solid bodies. An improved Delaunay algorithm is proposed to enhance mesh construction. Numerical experiments are presented, and the accuracy of the obtained results is analyzed to demonstrate the effectiveness of the proposed approach in accelerating thermal stress calculations.</p></abstract><trans-abstract xml:lang="ru"><p>Исследование посвящено моделированию процесса термодиффузии и термических напряжений с использованием метода конечных элементов (МКЭ). Рассматриваются алгоритмы построения полигональных сеток. Анализируется влияние качества сеток на точность численных методов при расчете термодиффузии в твердых телах и предложены улучшенный алгоритм Делоне. Приведены результаты численных экспериментов, выполнен анализ точности полученных результатов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>polygonal meshes</kwd><kwd>numerical methods</kwd><kwd>Delaunay</kwd><kwd>finite element method (FEM)</kwd><kwd>FEM accuracy</kwd><kwd>thermal stresses</kwd><kwd>thermodiffusion</kwd><kwd>improved Delaunay algorithm</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>полигональные сетки</kwd><kwd>численные методы</kwd><kwd>Делоне</kwd><kwd>метод конечных элементов</kwd><kwd>точность МКЭ</kwd><kwd>термические напряжения</kwd><kwd>термодиффузии</kwd><kwd>улучшенный алгоритм Делоне</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Noda N. Thermal stresses in materials with temperaturedependent properties, Applied Mechanics Reviews, 1991, vol. 44, no. 9, pp. 383—397, available at: https://doi.org/10.1115/1.3119511.</mixed-citation><mixed-citation xml:lang="ru">Noda N. Thermal stresses in materials with temperaturedependent properties // Applied Mechanics Reviews. 1991. Vol. 44, N. 9. P. 383—397. https://doi.org/10.1115/1.3119511.</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">Marousi A., Kokossis A. On the acceleration of global optimization algorithms by coupling cutting plane decomposition algorithms with machine learning and advanced data analytics, Computers &amp; Chemical Engineering, 2022, vol. 163, pp. 107820.</mixed-citation><mixed-citation xml:lang="ru">Marousi A., Kokossis A. On the acceleration of global optimization algorithms by coupling cutting plane decomposition algorithms with machine learning and advanced data analytics // Computers &amp; Chemical Engineering. 2022. Vol. 163. P. 107820.</mixed-citation></citation-alternatives></ref><ref id="B3"><label>3.</label><citation-alternatives><mixed-citation xml:lang="en">Liu W. K., Li S., Park H. S. Eighty years of the finite element method: Birth, evolution, and future, Archives of Computational Methods in Engineering, 2022, vol. 29, no. 6, pp. 4431—4453.</mixed-citation><mixed-citation xml:lang="ru">Liu W. K., Li S., Park H. S. Eighty years of the finite element method: Birth, evolution, and future // Archives of Computational Methods in Engineering. 2022. Vol. 29, N. 6. P. 4431—4453.</mixed-citation></citation-alternatives></ref><ref id="B4"><label>4.</label><citation-alternatives><mixed-citation xml:lang="en">Reddy J. N., Gartling D. K. The finite element method in heat transfer and fluid dynamics, Boca Raton, FL, CRC Press, 2010.</mixed-citation><mixed-citation xml:lang="ru">Reddy J. N., Gartling D. K. The finite element method in heat transfer and fluid dynamics. Boca Raton, FL: CRC Press, 2010.</mixed-citation></citation-alternatives></ref><ref id="B5"><label>5.</label><citation-alternatives><mixed-citation xml:lang="en">Hetnarski R. B. Encyclopedia of Thermal Stresses, Springer Netherlands, Dordrecht, 2014, doi: 10.1007/978-94-007-2739-7.</mixed-citation><mixed-citation xml:lang="ru">Hetnarski R. B. Encyclopedia of Thermal Stresses. Springer Netherlands Dordrecht, 2014. DOI: 10.1007/978-94-007-2739-7.</mixed-citation></citation-alternatives></ref><ref id="B6"><label>6.</label><citation-alternatives><mixed-citation xml:lang="en">Peiro J., Sherwin S. Finite difference, finite element and finite volume methods for partial differential equations. Handbook of Materials Modeling, Methods, 2005, pp. 2415—2446.</mixed-citation><mixed-citation xml:lang="ru">Peiro J., Sherwin S. Finite difference, finite element and finite volume methods for partial differential equations // Handb. Mater. Model. Methods. 2005. P. 2415—2446.</mixed-citation></citation-alternatives></ref><ref id="B7"><label>7.</label><citation-alternatives><mixed-citation xml:lang="en">Raad M., Popov A. Thermal stresses using Finite Element Method, 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE), IEEE, 2023, vol. 5, pp. 1—6.</mixed-citation><mixed-citation xml:lang="ru">Raad M., Popov A. Thermal stresses using Finite Elements Method // 2023 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE). IEEE, 2023. Vol. 5. P. 1—6.</mixed-citation></citation-alternatives></ref><ref id="B8"><label>8.</label><citation-alternatives><mixed-citation xml:lang="en">Fang Q., Tsuchiya T., Yamamoto T. Finite difference, finite element and finite volume methods applied to two-point boundary value problems, Journal of Computational and Applied Mathematics, 2002, vol. 139, no. 1, pp. 9—19, doi: 10.1016/S0377-0427(01)00392-2.</mixed-citation><mixed-citation xml:lang="ru">Fang Q., Tsuchiya T., Yamamoto T. Finite difference, finite element and finite volume methods applied to two-point boundary value problems // J. Comput. Appl. Math. 2002. Vol. 139, N. 1. P. 9—19. DOI: 10.1016/S0377-0427(01)00392-2.</mixed-citation></citation-alternatives></ref><ref id="B9"><label>9.</label><citation-alternatives><mixed-citation xml:lang="en">Ho-Le K. Finite element mesh generation methods: A review and classification, Computer-Aided Design, 1988, vol. 20, no. 1, pp. 27—38.</mixed-citation><mixed-citation xml:lang="ru">Ho-Le K. Finite element mesh generation methods: a review and classification // Computer-aided design. 1988. Vol. 20, N. 1. P. 27—38.</mixed-citation></citation-alternatives></ref><ref id="B10"><label>10.</label><citation-alternatives><mixed-citation xml:lang="en">Lei N., Li Z., Xu Z., Li Y., Gu X. What’s the Situation with Intelligent Mesh Generation: A Survey and Perspectives, IEEE Transactions on Visualization and Computer Graphics, 2023, vol. 30, no. 8, pp. 4997—5017.</mixed-citation><mixed-citation xml:lang="ru">Lei N., Li Z., Xu Z., Li Y., Gu X. What’s the Situation with Intelligent Mesh Generation: A Survey and Perspectives // IEEE transactions on visualization and computer graphics. 2023. Vol. 30, N. 8. P. 4997—5017.</mixed-citation></citation-alternatives></ref><ref id="B11"><label>11.</label><citation-alternatives><mixed-citation xml:lang="en">Lo D. S. H. Finite Element Mesh Generation, CRC Press, Boca Raton, FL, 2014, doi: 10.1201/b17713.</mixed-citation><mixed-citation xml:lang="ru">Lo D. S. H. Finite Element Mesh Generation. Boca Raton, FL: CRC Press, 2014. DOI: 10.1201/b17713.</mixed-citation></citation-alternatives></ref><ref id="B12"><label>12.</label><citation-alternatives><mixed-citation xml:lang="en">Cheng S.-W., Dey T. K., Shewchuk J., Sahni S. Delaunay Mesh Generation, Boca Raton, FL, CRC Press, 2013.</mixed-citation><mixed-citation xml:lang="ru">Cheng S.-W., Dey T. K., Shewchuk J., Sahni S. Delaunay mesh generation. Boca Raton, FL: CRC Press, 2013.</mixed-citation></citation-alternatives></ref><ref id="B13"><label>13.</label><citation-alternatives><mixed-citation xml:lang="en">Raad M., Popov A. Y. Calculate the approximate volume of complex-shape solids, Materials Today: Proceedings, 2023, vol. 80, pp. 1214—1218.</mixed-citation><mixed-citation xml:lang="ru">Raad M., Popov A. Y. Calculate the approximate volume of complex-shape solids // Materials Today: Proceedings. 2023. Vol. 80. P. 1214—1218.</mixed-citation></citation-alternatives></ref><ref id="B14"><label>14.</label><citation-alternatives><mixed-citation xml:lang="en">Zhou G. How accurate is the streamline diffusion finite element method, Mathematics of Computation, 1997, vol. 66, no. 217, pp. 31—44.</mixed-citation><mixed-citation xml:lang="ru">Zhou G. How accurate is the streamline diffusion finite element method // Mathematics of computation, 1997. Vol. 66, N. 217. P. 31—44.</mixed-citation></citation-alternatives></ref><ref id="B15"><label>15.</label><citation-alternatives><mixed-citation xml:lang="en">Liu G., Nguyen-Xuan H. A theoretical study on the smoothed FEM (S-FEM) models: Properties, accuracy and convergence rates, International Journal for Numerical Methods in Engineering, 2010, vol. 84, no. 10, pp. 1222—1256.</mixed-citation><mixed-citation xml:lang="ru">Liu G., Nguyen-Xuan H. A theoretical study on the smoothed FEM (S-FEM) models: Properties, accuracy and convergence rates // International Journal for Numerical Methods in Engineering. 2010. Vol. 84, N. 10. P. 1222—1256.</mixed-citation></citation-alternatives></ref><ref id="B16"><label>16.</label><citation-alternatives><mixed-citation xml:lang="en">Dekking F. M., Kraaikamp C., Lopuhaa H. P., Meester L. E. Why Probability and Statistics? A Modern Introduction to Probability and Statistics, London, Springer, 2005, 483 p.</mixed-citation><mixed-citation xml:lang="ru">Dekking F. M., Kraaikamp C., Lopuhaa H. P., Meester L. E. Why probability and statistics? A modern introduction to probability and statistics. London: Springer, 2005. 483 p.</mixed-citation></citation-alternatives></ref></ref-list></back></article>
