<?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">resar</journal-id><journal-title-group><journal-title xml:lang="ru">Природные ресурсы Арктики и Субарктики</journal-title><trans-title-group xml:lang="en"><trans-title>Arctic and Subarctic Natural Resources</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2618-9712</issn><issn pub-type="epub">2686-9683</issn><publisher><publisher-name>Академия наук Республики Саха (Якутия)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31242/2618-9712-2020-25-2-11</article-id><article-id custom-type="elpub" pub-id-type="custom">resar-251</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>Металлургия и материаловедение. Материаловедение</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Metallurgy and materials science. Materials science</subject></subj-group></article-categories><title-group><article-title>Квазихрупкое разрушение структурно-неоднородного материала с круговым отверстием при сжатии</article-title><trans-title-group xml:lang="en"><trans-title>Quasi-brittle fracture of a structurally inhomogeneous material with a circular hole under compression</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>Сукнёв</surname><given-names>C. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Suknev</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>СУКНЁВ Сергей Викторович, доктор технических наук, зав. лабораторией</p><p>677980, Якутск, пр. Ленина, 43</p></bio><bio xml:lang="en"><p>SUKNEV Sergey Viktorovich, doctor of technical sciences, head of laboratory</p><p>43 Lenina pr., Yakutsk, 677980</p></bio><email xlink:type="simple">suknyov@igds.ysn.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт горного дела Севера им. Н.В. Черского СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Chersky Institute of Mining of the North SB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>30</day><month>09</month><year>2023</year></pub-date><volume>25</volume><issue>2</issue><fpage>137</fpage><lpage>146</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сукнёв C.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Сукнёв C.В.</copyright-holder><copyright-holder xml:lang="en">Suknev S.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://resar.elpub.ru/jour/article/view/251">https://resar.elpub.ru/jour/article/view/251</self-uri><abstract><p>Представлены результаты экспериментального и теоретического исследования разрушения гипсовых плит, содержащих круговое отверстие и подверженных действию неравномерно распределенной сжимающей нагрузки. Испытывали образцы, изготовленные из высокопрочного гипса и из обычного строительного гипса. Образцы из высокопрочного гипса разрушались хрупко, в то время как образцы из строительного гипса продемонстрировали квазихрупкий характер разрушения. Для расчета критической нагрузки предложено использовать модифицированный нелокальный критерий разрушения, являющийся развитием критерия средних напряжений и содержащий комплексный параметр, характеризующий размер зоны предразрушения и учитывающий не только структуру материала, но также пластические свойства материала, геометрию образца и условия его нагружения. Результаты расчетов хорошо согласуются с полученными экспериментальными данными. Кроме того, применение модифицированного нелокального критерия позволило объяснить наблюдаемую в эксперименте смену характера разрушения с хрупкого на вязкий при увеличении размера отверстия. Полученные результаты имеют важное практическое значение для расчетов на прочность материалов и конструкций с концентраторами напряжений.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents results of experimental and theoretical studies on fracture of gypsum plates containing a circular hole and subjected to non-uniformly distributed compression. The tested specimens were made of high-strength gypsum, and from gypsum plaster. The specimens of high-strength gypsum were broken in the brittle manner, while the specimens of gypsum plaster demonstrated quasi-brittle fracture. To calculate the critical load, amodified nonlocal fracture criterion is proposed, which is the development of the average stress criterion, and which contains a complex parameter that characterizes the size of the fracture process zone and accounts not only for the material structure, but also for the plastic properties of the material, geometry of the specimen, and its loading conditions. The calculation results are in good agreement with the experimental data. In addition, the application of the modified nonlocal criterion makes it possible to explain the change in the character of fracture from brittle to ductile with an increase in the size of the hole, observed in the experiment. The results obtained are of great practical significance for assessment on the strength of materials and structures with stress concentration.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гипс</kwd><kwd>хрупкое разрушение</kwd><kwd>квазихрупкое разрушение</kwd><kwd>нелокальный критерий разрушения</kwd><kwd>отверстие</kwd><kwd>масштабный эффект</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gypsum</kwd><kwd>brittle fracture</kwd><kwd>quasi-brittle fracture</kwd><kwd>nonlocal fracture criterion</kwd><kwd>hole</kwd><kwd>size effect</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Российского фонда фундаментальных исследований, грант № 18-05-00323.</funding-statement><funding-statement xml:lang="en">The research was financially supported by the Russian Foundation for Basic Research under grant number 18-05-00323.</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">Новожилов В.В. О необходимом и достаточном критерии хрупкой прочности // Прикл. математика и механика. 1969. Т. 33, № 2. С. 212–222.</mixed-citation><mixed-citation xml:lang="en">Novozhilov V.V. On a necessary and sufficient criterion for brittle strength // J. Appl. Math. Mech. 1969. V. 33, No. 2. P. 201–210.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Lajtai E.Z. Effect of tensile stress gradient on brittle fracture initiation // Int. J. Rock Mech. Min. Sci. 1972. V. 8, No. 5. P. 569–578.</mixed-citation><mixed-citation xml:lang="en">Lajtai E.Z. Effect of tensile stress gradient on brittle fracture initiation // Int. J. Rock Mech. Min. Sci. 1972. V. 8, No. 5. P. 569–578.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Whitney J.M., Nuismer R.J. Stress fracture criteria for laminated composites containing stress concentrations // J. Compos. Mater. 1974. Vol. 8, No. 4. P. 253–265.</mixed-citation><mixed-citation xml:lang="en">Whitney J.M., Nuismer R.J. Stress fracture criteria for laminated composites containing stress concentrations // J. Compos. Mater. 1974. Vol. 8, No. 4. P. 253–265.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Carter B.J., Lajtai E.Z., Yuan Y. Tensile fracture from circular cavities loaded in compression // Int. J. Fract. 1992. V. 57, No. 3. P. 221–236.</mixed-citation><mixed-citation xml:lang="en">Carter B.J., Lajtai E.Z., Yuan Y. Tensile fracture from circular cavities loaded in compression // Int. J. Fract. 1992. V. 57, No. 3. P. 221–236.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Seweryn A., Mroz Z. A non-local stress failure condition for structural elements under multiaxial loading // Eng. Fract. Mech. 1995. V. 51, No. 6. P. 955–973.</mixed-citation><mixed-citation xml:lang="en">Seweryn A., Mroz Z. A non-local stress failure condition for structural elements under multiaxial loading // Eng. Fract. Mech. 1995. V. 51, No. 6. P. 955–973.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Mikhailov S.E. A functional approach to non-local strength condition and fracture criteria // Eng. Fract. Mech. 1995. V. 52, No. 4. P. 731–754.</mixed-citation><mixed-citation xml:lang="en">Mikhailov S.E. A functional approach to non-local strength condition and fracture criteria // Eng. Fract. Mech. 1995. V. 52, No. 4. P. 731–754.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Корнев В.М. Интегральные критерии хрупкой прочности трещиноватых тел с дефектами при наличии вакансий в носике трещины. Прочность компактированных тел типа керамик // ПМТФ. 1996. Т. 37, № 5. С. 168–177.</mixed-citation><mixed-citation xml:lang="en">Kornev V.M. Integral criteria for the brittle strength of cracked bodies with defects in the presence of vacancies at the tip of a crack. Strength of compacted ceramics-type bodies // J. Appl. Mech. Tech. Phys.. 1996. V. 37, No. 5. P. 168–177.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Сукнев С.В., Новопашин М.Д. Определение локальных механических свойств материалов // Докл. РАН. 2000. Т. 373, № 1. С. 48–50. DOI: 10.1134/1.1307085</mixed-citation><mixed-citation xml:lang="en">Suknev S.V., Novopashin M.D. Determination of local mechanical properties of materials // Dokl. Phys. 2000. V. 373, No. 1. P. 48–50. DOI: 10.1134/1.1307085</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Левин В.А., Морозов Е.М. Нелокальный критерий разрушения. Конечные деформации // Докл. РАН. 2002. Т. 386, № 1. С. 46–47.</mixed-citation><mixed-citation xml:lang="en">Levin V.A., Morozov E.M. Nonlocal fracture criterion: Finite strains // Dokl. Phys. 2002. V. 386, No. 1. P. 46–47</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">ittle fracture in key-hole notches under mixed mode loading // Eur. J. Mech. A/Solids. 2015. V. 49. P. 1–12.</mixed-citation><mixed-citation xml:lang="en">Torabi A.R., Pirhadi E. Stress-based criteria for brittle fracture in key-hole notches under mixed mode loading // Eur. J. Mech. A/Solids. 2015. V. 49. P. 1–12.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Cornetti P., Pugno N., Carpinteri A., Taylor D. Finite fracture mechanics: a coupled stress and energy failure criterion // Eng. Fract. Mech. 2006. V. 73, No. 14. P. 2021–2033.</mixed-citation><mixed-citation xml:lang="en">Cornetti P., Pugno N., Carpinteri A., Taylor D. Finite fracture mechanics: a coupled stress and energy failure criterion // Eng. Fract. Mech. 2006. V. 73, No. 14. P. 2021–2033.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Taylor D. The theory of critical distances: a new perspective in fracture mechanics. Oxford: Elsevier, 2007. 284 p.</mixed-citation><mixed-citation xml:lang="en">Taylor D. The theory of critical distances: a new perspective in fracture mechanics. Oxford: Elsevier, 2007. 284 p.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Justo J., Castro J., Cicero S., Sánchez-Carro M.A., Husillos R. Notch effect on the fracture of several rocks: Application of the Theory of Critical Distances // Theor. Appl. Fract. Mech. 2017. V. 90. P. 251–258.</mixed-citation><mixed-citation xml:lang="en">Justo J., Castro J., Cicero S., Sánchez-Carro M.A., Husillos R. Notch effect on the fracture of several rocks: Application of the Theory of Critical Distances // Theor. Appl. Fract. Mech. 2017. V. 90. P. 251–258.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Vargiu F., Sweeney D., Firrao D., Matteis P., Taylor D. Implementation of the Theory of Critical Distances using mesh control // Theor. Appl. Fract. Mech. 2017. V. 92. P. 113–121.</mixed-citation><mixed-citation xml:lang="en">Vargiu F., Sweeney D., Firrao D., Matteis P., Taylor D. Implementation of the Theory of Critical Distances using mesh control // Theor. Appl. Fract. Mech. 2017. V. 92. P. 113–121.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Sapora A., Cornetti P. Crack onset and propagation stability from a circular hole under biaxial loading // Int. J. Fract. 2018. V. 214, No. 1. P. 97–104.</mixed-citation><mixed-citation xml:lang="en">Sapora A., Cornetti P. Crack onset and propagation stability from a circular hole under biaxial loading // Int. J. Fract. 2018. V. 214, No. 1. P. 97–104.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Sapora A., Torabi A.R., Etesam S., Cornetti P. Finite Fracture Mechanics crack initiation from a circular hole // Fatigue Fract. Eng. Mater. Struct. 2018. V. 41, No. 7. P. 1627–1636.</mixed-citation><mixed-citation xml:lang="en">Sapora A., Torabi A.R., Etesam S., Cornetti P. Finite Fracture Mechanics crack initiation from a circular hole // Fatigue Fract. Eng. Mater. Struct. 2018. V. 41, No. 7. P. 1627–1636.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Сукнёв С.В. Нелокальные критерии разрушения. Критерий конечной трещины // Природные ресурсы Арктики и Субарктики. 2018. Т. 23, № 1. С. 67–74. DOI: 10.31242/2618-9712-2018-23-1-67-74</mixed-citation><mixed-citation xml:lang="en">Suknyov S.V. Nonlocal fracture criteria. Finite fracture criterion // Arctic and Subarctic Natural Resources. 2018. V. 23, No. 1. P. 67–74. DOI: 10.31242/2618-9712-2018-23-1-67-74</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Taylor D. The Theory of Critical Distances applied to multiscale toughening mechanisms // Eng. Fract. Mech. 2019. V. 209. P. 392–403.</mixed-citation><mixed-citation xml:lang="en">Taylor D. The Theory of Critical Distances applied to multiscale toughening mechanisms // Eng. Fract. Mech. 2019. V. 209. P. 392–403.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Vedernikova A., Kostina A., Plekhov O., Bragov A. On the use of the critical distance concept to estimate tensile strength of notched components under dynamic loading and physical explanation theory // Theor. Appl. Fract. Mech. 2019. V. 103, Article 102280. P. 1–11.</mixed-citation><mixed-citation xml:lang="en">Vedernikova A., Kostina A., Plekhov O., Bragov A. On the use of the critical distance concept to estimate tensile strength of notched components under dynamic loading and physical explanation theory // Theor. Appl. Fract. Mech. 2019. V. 103, Article 102280. P. 1–11.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Justo J., Castro J., Cicero S. Notch effect and fracture load predictions of rock beams at different temperatures using the Theory of Critical Distances // Int. J. Rock Mech. Min. Sci. 2020. V. 125, Article 104161. P. 1–15.</mixed-citation><mixed-citation xml:lang="en">Justo J., Castro J., Cicero S. Notch effect and fracture load predictions of rock beams at different temperatures using the Theory of Critical Distances // Int. J. Rock Mech. Min. Sci. 2020. V. 125, Article 104161. P. 1–15.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Сукнев С.В. Нелокальные и градиентные критерии разрушения квазихрупких материалов при сжатии // Физическая мезомеханика. 2018. Т. 21, № 4. С. 22–32.</mixed-citation><mixed-citation xml:lang="en">Suknev S.V. Nonlocal and gradient fracture criteria for quasi-brittle materials under compression // Phys. Mesomech. 2018. V. 21, № 4. P. 22–32. DOI: 10.1134/S1029959919060079</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Сукнев С.В. Разрушение хрупкого геоматериала с круговым отверстием при двухосном нагружении // ПМТФ. 2015. Т. 56, № 6. С. 166–172. DOI: 10.1134/S1029959919060079</mixed-citation><mixed-citation xml:lang="en">Suknev S.V. Fracture of brittle geomaterial with a circular hole under biaxial loading // J. Appl. Mech. Tech. Phys. 2015. V. 56, No. 6. P. 166–172. DOI: 10.1134/S0021894415060188</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Сукнев С.В. Применение нелокальных и градиентных критериев для оценки разрушения геоматериалов в зонах концентрации растягивающих напряжений // Физическая мезомеханика. 2011. Т. 14, № 2. С. 67–75.</mixed-citation><mixed-citation xml:lang="en">Suknev S.V. Application of nonlocal and stress gradient criteria for estimation of fracture of geomaterials in tensile stress concentration zones // Fiz. Mezomekh. 2011. V. 14, No. 2. P. 67–75.</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>
