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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">zldm</journal-id><journal-title-group><journal-title xml:lang="ru">Заводская лаборатория. Диагностика материалов</journal-title><trans-title-group xml:lang="en"><trans-title>Industrial laboratory. Diagnostics of materials</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1028-6861</issn><issn pub-type="epub">2588-0187</issn><publisher><publisher-name>ООО «Издательство «ТЕСТ-ЗЛ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26896/1028-6861-2023-89-11-71-88</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-2062</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>МЕХАНИКА МАТЕРИАЛА: ПРОЧНОСТЬ, РЕСУРС, БЕЗОПАСНОСТЬ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATERIALS MECHANICS: STRENGTH, DURABILITY, SAFETY</subject></subj-group></article-categories><title-group><article-title>Поля остаточных напряжений в окрестности свободных монтажных отверстий панели крыла самолета</article-title><trans-title-group xml:lang="en"><trans-title>Fields of residual stresses near open assemblage holes of aircraft wing panel</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>Елеонский</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Eleonsky</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Святослав Игоревич Елеонский</p><p>140180, г. Жуковский, ул. Жуковского, д. 1</p></bio><bio xml:lang="en"><p>Svyatoslav I. Eleonsky</p><p>1, Zhukovskogo ul., Zhukovsky, 140180</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зайцев</surname><given-names>М. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaitsev</surname><given-names>M. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Дмитриевич Зайцев</p><p>140180, г. Жуковский, ул. Жуковского, д. 1</p></bio><bio xml:lang="en"><p>Mikhail D. Zaitsev</p><p>1, Zhukovskogo ul., Zhukovsky, 140180</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Матвиенко</surname><given-names>Ю. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Matvienko</surname><given-names>Y. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Григорьевич Матвиенко</p><p>101000, Москва, Малый Харитоньевский пер., д. 4</p></bio><bio xml:lang="en"><p>Yury G. Matvienko</p><p>4, Maly Kharitonyevsky per., Moscow, 101000</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Писарев</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Pisarev</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Сергеевич Писарев</p><p>140180, г. Жуковский, ул. Жуковского, д. 1</p></bio><bio xml:lang="en"><p>Vladimir S. Pisarev</p><p>1, Zhukovskogo ul., Zhukovsky, 140180</p></bio><email xlink:type="simple">VSP5335@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Центральный аэрогидродинамический институт имени профессора Н. Е. Жуковского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N. E. Zhukovsky Central AeroHydrodynamics Institute</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт машиноведения им. А. А. Благонравова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Mechanical Engineering Research Institute of the Russian Academy of Science</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>21</day><month>11</month><year>2023</year></pub-date><volume>89</volume><issue>11</issue><fpage>71</fpage><lpage>88</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Елеонский С.И., Зайцев М.Д., Матвиенко Ю.Г., Писарев В.С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Елеонский С.И., Зайцев М.Д., Матвиенко Ю.Г., Писарев В.С.</copyright-holder><copyright-holder xml:lang="en">Eleonsky S.I., Zaitsev M.D., Matvienko Y.G., Pisarev V.S.</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.zldm.ru/jour/article/view/2062">https://www.zldm.ru/jour/article/view/2062</self-uri><abstract><p>Исследованы результаты испытаний на усталостную прочность двух геометрически одинаковых конструктивно-подобных моделей нижней панели крыла коммерческого самолета. Панели отличались способом установки монтажных болтов, соединяющих обшивку и стрингер. В первой панели выполнено холодное упрочнение отверстий в обшивке и стрингере перед их монтажом. Во второй панели после сверления и развертывания дополнительную обработку отверстий не применяли. Установку болтов проводили с натягом, который варьировали от 1,3 до 2,1 % для первой панели и от 2,9 до 3,2 % — для второй. Вариации в значениях натяга — следствие разброса, вызванного наличием поля допуска на диаметры как болтов, так и монтажных отверстий. Двухэтапное сравнение обеих технологий проведено на основе экспериментальных исследований полей остаточных напряжений. Первый этап, представленный в данной работе, включал анализ величин компонент остаточных напряжений в окрестности монтажных отверстий после удаления болтов и отделения обшивки от стрингера. Для определения компонент остаточных напряжений использовали метод сверления отверстия и метод последовательного наращивания длины трещины. Деформационный отклик измеряли методом электронной спекл-интерферометрии. Для обоих способов локального удаления материала получены наборы интерферограмм высокого качества, которые обеспечивали надежное разрешение интерференционных полос предельной плотности непосредственно на контуре зондирующего отверстия или на берегах искусственного надреза. Дискретный метод, основанный на сверлении зондирующего отверстия, позволил количественно определить компоненты остаточных напряжений, начиная с расстояния 1,4 мм от контура монтажного отверстия. Другой непрерывный метод основан на последовательном наращивании длины искусственного надреза, начиная непосредственно от контура монтажного отверстия. Такой подход обеспечил анализ полей остаточных напряжений, относящихся к двум технологиям установки болтов, путем сравнения величин КИН. Отмечен высокий уровень сжимающих остаточных напряжений в окрестности свободных отверстий для панелей обоих типов. Оба экспериментальных подхода выявили преимущества соединения с болтами, установленными в упрочненное отверстие. Для этого случая представлена оценка параметров релаксации главной компоненты остаточных напряжений в направлении внешней нагрузки.</p></abstract><trans-abstract xml:lang="en"><p>The results of fatigue tests of two geometrically identical and similar in design models of the lower wing panel of a commercial aircraft are were analyzed. The panels differed in the way of installing mounting bolts, which connect the skin and stringers. Cold expansion of holes drilled both in the skin and stringer has been performed for the first panel before joining. The second panel includes no additional treatment after drilling pilot holes and final reaming. Bolts are mounted with an interference fit varying from 1.3 to 2.1% and from 2.9 to 3.2% for the first and the second panel, respectively. Changes in the interference fit are the consequence of a scatter attributed to the presence of a tolerance zone for the diameters of both bolts and mounting holes. A two-step comparison of both technologies is based on the experimental study of residual stress fields. The first stage, being a subject of the present study, includes the analysis of residual stress fields, which arise after removing bolts and separation of skin from stringers. Hole drilling and gradual crack growth were used to determine the components of residual stresses. Deformation response is measured by electronic speckle-pattern interferometry. High quality interferograms, which provide a reliable resolution of the interference fringes of ultimate density over the hole edge or directly along the notch borders, have been obtained for both ways of local removing the material. The first point-wise method based on drilling a probe hole, provides a quantitative determination of the residual stress components, starting from 1.4 mm distance from the assemblage hole edge. The second technique implements the crack compliance method of subsequent lengthening of the notch, starting directly from the mounting hole edge. This approach provides for a quantitative analysis of residual stress fields, related to different bolt mounting technologies, proceeding from the comparison of SIF values. A high level of compressive residual stresses near open holes is characteristic for both types of panels. Both experimental approaches showed the benefits of joints, where bolts are mounted into cold-expanded (reinforced) holes. For this case, the estimation of the relaxation parameters of the principal component of residual stresses in the direction of the external load is presented.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>конструктивно-подобная модель</kwd><kwd>болтовые соединения</kwd><kwd>остаточные напряжения</kwd><kwd>метод сверления отверстия</kwd><kwd>метод последовательного наращивания длины трещины</kwd><kwd>электронная спекл-интерферометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>design-similar model</kwd><kwd>bolted joints</kwd><kwd>residual stress</kwd><kwd>hole drilling technique</kwd><kwd>crack compliance method</kwd><kwd>electronic speckle-pattern interferometry</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">Воробьев А. З., Олькин Б. И., Стебенев В. Н., Родченко Т. С. 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