<?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">vmait</journal-id><journal-title-group><journal-title xml:lang="ru">Computational Mathematics and Information Technologies</journal-title><trans-title-group xml:lang="en"><trans-title>Computational Mathematics and Information Technologies</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2587-8999</issn><publisher><publisher-name>Донской государственный технический университет</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vmait-77</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Применение сеточно-характеристического метода для численного решения динамических задач механики деформируемых твердых сред</article-title><trans-title-group xml:lang="en"><trans-title>Application of grid-characteristic method for numerical solution of deformable solid mechanics dynamical problems</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3978-9072</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петров</surname><given-names>Игорь Борисович</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>Igor B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петров Игорь Борисович, член-корреспондент РАН, доктор физико-математических наук, профессор, заведующий кафедрой «Вычислительная математика и информатика» Московского физико-технического института (государственного университета), г. Москва, РФ.</p></bio><bio xml:lang="en"><p>Petrov, Igor B., Correspondent Member of RAS, Dr.Sci. (Phys. -Math.), Professor, Moscow Institute of Physics and Technology (State University), Moscow, Russian Federation</p></bio><email xlink:type="simple">petrov@mipt.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский физико-технический институт (государственный университет), г. Москва, РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Institute of Physics and Technology (State University), Moscow, Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>29</day><month>03</month><year>2023</year></pub-date><volume>1</volume><issue>1</issue><elocation-id>77</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Петров И.Б., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Петров И.Б.</copyright-holder><copyright-holder xml:lang="en">Petrov I.B.</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.cmit-journal.ru/jour/article/view/77">https://www.cmit-journal.ru/jour/article/view/77</self-uri><abstract><p>Сеточно-характеристический метод – перспективный численный метод решения гиперболических систем уравнений, например, уравнений, описывающих упругие и акустические волны. Этот метод обладает высокой точностью и позволяет физически правильно моделировать волновые процессы в гетерогенных средах. Сеточно-характеристический метод позволяет корректно учитывать граничные условия, а также условия на поверхностях раздела сред с различными физическими характеристиками. Наиболее полно преимущества метода проявляются для одномерных уравнений, особенно в сочетании с фиксированной разностной сеткой, как в обычных сеточных методах. Однако, и в многомерном случае при использовании алгоритмов расщепления по пространственным переменным, удалось сохранить его положительные качества. Использование для гиперболических уравнений методов типа Рунге – Кутта, либо интегро-интерполяционного метода позволяет эффективно проводить обобщение методов, развитых для линейных уравнений, на нелинейный случай, в том числе, для обеспечения выполнения разностных аналогов законов сохранения, что важно при сквозном счете, например, разрывных решений. На основе разработанного автором варианта сеточно-характеристического метода был численно решен ряд важных задач сейсморазведки, сейсмостойкости, глобальной сейсмики на Земле и Марсе, медицинских приложений, неразрушающего контроля железнодорожных путей, моделирования процессов создания и характеристик композитных материалов для аэрокосмической отрасли и в других областях практического применения. Существенным преимуществом построенного метода является сохранение его устойчивости и точности при значительных деформациях среды. В данной статье представлены результаты численного решения на основе сеточно-характеристического метода задачи о моделировании упруго-пластической деформации при черепно-мозговых травмах.</p></abstract><trans-abstract xml:lang="en"><p>The grid-characteristic method is a promising numerical method for solving hyperbolic systems of equations, e.g., equations describing elastic and acoustic waves. This method has high precision and allows you to physically correctly simulate wave processes in heterogeneous media. The grid-characteristic method makes it possible to correctly take into account boundary conditions and conditions on surfaces with different physical characteristics. Most fully the advantages of the method are for one-dimensional equations, especially in combination with a fixed difference grid, as in conventional grid-based methods. However, in the multidimensional case using the algorithms of splitting with respect to spatial variables, the author has managed to preserve its positive qualities. The use of the method of Runge – Kutta type, or integro-interpolation method for hyperbolic equations makes it possible to effectively carry out the generalization of methods developed for linear equations, in nonlinear case, in particular, to enforce the difference analogs of the conservation laws, which is important for shock-capturing, for example, discontinuous solutions. Based on the author's variant of the grid-characteristic method were numerically solved several important problems of seismic prospecting, seismic resistance, global seismic studies on Earth and Mars, medical applications, nondestructive testing of railway lines, the simulation of the creation and characteristics of composite materials for the aerospace industry and other areas of practical application. A significant advantage of the constructed method is the preservation of its stability and precision at the strains of the environment. This article presents the results of numerical solution based on the grid-characteristic method to the problem of modeling elastic-plastic deformation in traumatic brain injury.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>уравнения гиперболического типа</kwd><kwd>упругие и пластические деформации</kwd><kwd>сеточно-характеристический метод</kwd><kwd>разностные схемы</kwd><kwd>разрывные решения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hyperbolic type equations</kwd><kwd>elastic and plastic deformation</kwd><kwd>grid-characteristic method</kwd><kwd>finite difference schemes</kwd><kwd>discontinuous solutions</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The research is done within the frame of the independent R&amp;D.</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">Kukudzhanov, V.N. Chislennoe reshenie neodnomernykh zadach rasprostraneniya voln napryazheniy v tverdykh telakh. [Numerical solution of multidimensional problems of propagation of stress waves in solid bodies.] Soobshch. po prikl. matem., iss. 6, Moscow, VTS AN USSR, 1976 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Kukudzhanov, V.N. Chislennoe reshenie neodnomernykh zadach rasprostraneniya voln napryazheniy v tverdykh telakh. [Numerical solution of multidimensional problems of propagation of stress waves in solid bodies.] Soobshch. po prikl. matem., iss. 6, Moscow, VTS AN USSR, 1976 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Novatskiy, V. K.Volnovye zadachi teorii plastichnosti. [Wave problems of the theory of plasticity.] Moscow, Mir, 1978 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Novatskiy, V. K.Volnovye zadachi teorii plastichnosti. [Wave problems of the theory of plasticity.] Moscow, Mir, 1978 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Magomedov, K.M., Kholodov, A.S. O postroenii raznostnykh skhem dlya uravneniy giperbolicheskogo tipa na osnove kharakteristicheskikh sootnosheniy. [On construction of difference schemes for equations of hyperbolic type on the basis of the characteristic ratios.] Zh. vychisl. matem. i matem. fiz., 1969, vol. 9, no. 2, pp. 373-386 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Magomedov, K.M., Kholodov, A.S. O postroenii raznostnykh skhem dlya uravneniy giperbolicheskogo tipa na osnove kharakteristicheskikh sootnosheniy. [On construction of difference schemes for equations of hyperbolic type on the basis of the characteristic ratios.] Zh. vychisl. matem. i matem. fiz., 1969, vol. 9, no. 2, pp. 373-386 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Kholodov, A.S. O postroenii raznostnykh skhem s polozhitel’noy approksimatsiey dlya uravneniy giperbolicheskogo tipa. [On construction of difference schemes with positive approximation for equations of hyperbolic type.] Zh. vychisl. matem. i matem. fiz., 1978, vol. 18, no. 6, pp. 1476-1492 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Kholodov, A.S. O postroenii raznostnykh skhem s polozhitel’noy approksimatsiey dlya uravneniy giperbolicheskogo tipa. [On construction of difference schemes with positive approximation for equations of hyperbolic type.] Zh. vychisl. matem. i matem. fiz., 1978, vol. 18, no. 6, pp. 1476-1492 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Kholodov, A.S. O postroenii raznostnykh skhem povyshennogo poryadka tochnosti dlya uravneniy giperbolicheskogo tipa. [On construction of difference schemes of increased order of accuracy for equations of hyperbolic type.] Zh. vychisl. matem. i matem. fiz., 1980, vol. 20, no. 6, pp. 1601-1620 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Kholodov, A.S. O postroenii raznostnykh skhem povyshennogo poryadka tochnosti dlya uravneniy giperbolicheskogo tipa. [On construction of difference schemes of increased order of accuracy for equations of hyperbolic type.] Zh. vychisl. matem. i matem. fiz., 1980, vol. 20, no. 6, pp. 1601-1620 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Tikhonov, A.I., Samarskiy, A.A. Ob odnorodnykh raznostnykh skhemakh. [On homogeneous difference schemes.] — Zh. vychisl. matem. i matem. fiz., 1961, vol. 1, no. 1, pp. 5-63 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Tikhonov, A.I., Samarskiy, A.A. Ob odnorodnykh raznostnykh skhemakh. [On homogeneous difference schemes.] — Zh. vychisl. matem. i matem. fiz., 1961, vol. 1, no. 1, pp. 5-63 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Sedov, L.I. Mekhanika sploshnykh sred. [Continuum mechanics.] Moscow, Nauka, vol. I, II, 1973 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Sedov, L.I. Mekhanika sploshnykh sred. [Continuum mechanics.] Moscow, Nauka, vol. I, II, 1973 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Rozhdestvensky, V.L., Yanenko, N. N. Sistemy kvazilineynykh uravneniy. [Systems of quasilinear equations.] Moscow, Nauka, 1978 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Rozhdestvensky, V.L., Yanenko, N. N. Sistemy kvazilineynykh uravneniy. [Systems of quasilinear equations.] Moscow, Nauka, 1978 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Chislennoe reshenie mnogomernykh zadach gazovoy dinamiki. [Numerical solution to multidimensional problems of gas dynamics.] Ed. Godunov, S.K., Moscow, Nauka, 1976 (in Rusian).</mixed-citation><mixed-citation xml:lang="en">Chislennoe reshenie mnogomernykh zadach gazovoy dinamiki. [Numerical solution to multidimensional problems of gas dynamics.] Ed. Godunov, S.K., Moscow, Nauka, 1976 (in Rusian).</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Redi, J. Deystvie moshchnogo lazernogo izlucheniya. [The action of powerful laser radiation.] Moscow, Mir, 1974 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Redi, J. Deystvie moshchnogo lazernogo izlucheniya. [The action of powerful laser radiation.] Moscow, Mir, 1974 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Bullough, R., Gilman, I. 1. Elastic explosions in solid caused by radiation. J. Appl. Phys., 1966, vol. 37, no. 6, pp. 2283-2287.</mixed-citation><mixed-citation xml:lang="en">Bullough, R., Gilman, I. 1. Elastic explosions in solid caused by radiation. J. Appl. Phys., 1966, vol. 37, no. 6, pp. 2283-2287.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Maynchen, D., Sak, S. Metod rascheta “Tenzor”. [Calculation method "Tensor".] Vychisl. metody v gidrodinamike, Moscow, Mir, 1967, pp. 185-211 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Maynchen, D., Sak, S. Metod rascheta “Tenzor”. [Calculation method "Tensor".] Vychisl. metody v gidrodinamike, Moscow, Mir, 1967, pp. 185-211 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Favorskaya, A.V., Petrov, I.B. O volnovykh otklikakh ot neftesoderzhashchikh rezervuarov v shel’fovykh zone Arktiki. [On the wave responses from petroliferous resevoirs in the Arctic shelf zone.] DAN, 2016, vol. 466, no. 6, pp. 722-725 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Favorskaya, A.V., Petrov, I.B. O volnovykh otklikakh ot neftesoderzhashchikh rezervuarov v shel’fovykh zone Arktiki. [On the wave responses from petroliferous resevoirs in the Arctic shelf zone.] DAN, 2016, vol. 466, no. 6, pp. 722-725 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Kvasov, I.E., Levyant, V.B., Petrov, I.B. Chislennoe issledovanie volnovykh protsessov v poristoy srede s ispol’zovaniem setochno-kharakteristicheskogo metoda. [Numerical study of wave processes in a porous medium using grid-characteristic method.] ZHVM i MF, 2016, vol. 56, no. 9, pp. 1645-1656 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Kvasov, I.E., Levyant, V.B., Petrov, I.B. Chislennoe issledovanie volnovykh protsessov v poristoy srede s ispol’zovaniem setochno-kharakteristicheskogo metoda. [Numerical study of wave processes in a porous medium using grid-characteristic method.] ZHVM i MF, 2016, vol. 56, no. 9, pp. 1645-1656 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Astanin, A.V., Dashkevich, A.D., Petrov, I.B., Petrov, M.N., Utyuzhnikov, S.V., Khokhlov N.I. Modelirovanie vliyaniya golovnoy udarnoy volny chelyabinskogo meteorite na poverkhnost’ Zemli. [Modeling of the influence of bow shock waves of the Chelyabinsk meteorite on the Earth's surface.] Matematicheskoe modelirovanie, 2016, vol. 28, no. 8, pp. 33-45 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Astanin, A.V., Dashkevich, A.D., Petrov, I.B., Petrov, M.N., Utyuzhnikov, S.V., Khokhlov N.I. Modelirovanie vliyaniya golovnoy udarnoy volny chelyabinskogo meteorite na poverkhnost’ Zemli. [Modeling of the influence of bow shock waves of the Chelyabinsk meteorite on the Earth's surface.] Matematicheskoe modelirovanie, 2016, vol. 28, no. 8, pp. 33-45 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Sannikov, A.V., Miryaha, V.A., Petrov, I.V. Chislennoe modelirovanie eksperimentov po issledovaniyu prochnostnykh kharakteristik l'da. [Numerical modeling experiments on the study of strength characteristics of ice.] Cb. Polyarnaya mekhanika. Materialy 3-ey mezhdunarodnoy nauchnoy konferentsii 27-30 sentyabrya 2016g. [Col. Polar mechanics. The materials of the 3rd international scientific conference 27-30 September 2016.] Vladivostok, pp. 141-150 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Sannikov, A.V., Miryaha, V.A., Petrov, I.V. Chislennoe modelirovanie eksperimentov po issledovaniyu prochnostnykh kharakteristik l'da. [Numerical modeling experiments on the study of strength characteristics of ice.] Cb. Polyarnaya mekhanika. Materialy 3-ey mezhdunarodnoy nauchnoy konferentsii 27-30 sentyabrya 2016g. [Col. Polar mechanics. The materials of the 3rd international scientific conference 27-30 September 2016.] Vladivostok, pp. 141-150 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Petrov, I., Vasyukov, A., Ermakov, A., Favorskaya, A. Numerical modeling of non-destructive testing of composities. Science Processing Computer Science 96 (2016), pp. 930-938.</mixed-citation><mixed-citation xml:lang="en">Petrov, I., Vasyukov, A., Ermakov, A., Favorskaya, A. Numerical modeling of non-destructive testing of composities. Science Processing Computer Science 96 (2016), pp. 930-938.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Vassilevski, Y.V., Beklemysheva, K.A., Grigoriev, G.K., Salametova, A.O., Vasyukov, A.V. Transcranial ultrasound of concept. Russian journal of Numerical Analysis and Mathematical Modeling, vol. 31, no. 5, pp. 239-328, 2016.</mixed-citation><mixed-citation xml:lang="en">Vassilevski, Y.V., Beklemysheva, K.A., Grigoriev, G.K., Salametova, A.O., Vasyukov, A.V. Transcranial ultrasound of concept. Russian journal of Numerical Analysis and Mathematical Modeling, vol. 31, no. 5, pp. 239-328, 2016.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Levyant, V.B., Kvasov, I.E., Petrov, I.B. Otsenka vozmozhnosti obnaruzheniya kartirovaniya zon razvitiya mezotreshchin v plastakh pri ispol’zovanii obmennykh rasseyannykh voln. [Evaluation of the detection capability of the mapping areas for the development of mezocracks in layers using converted scattered waves.] Tekhnologii seysmorazvedki, 2016, no. 1, pp. 14-30 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Levyant, V.B., Kvasov, I.E., Petrov, I.B. Otsenka vozmozhnosti obnaruzheniya kartirovaniya zon razvitiya mezotreshchin v plastakh pri ispol’zovanii obmennykh rasseyannykh voln. [Evaluation of the detection capability of the mapping areas for the development of mezocracks in layers using converted scattered waves.] Tekhnologii seysmorazvedki, 2016, no. 1, pp. 14-30 (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>
