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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Operation of Maritime Transport</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Operation of Maritime Transport</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Эксплуатация морского транспорта</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">1992-8181</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">53650</article-id>
   <article-id pub-id-type="doi">10.34046/aumsuomt92/24</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Раздел 3 СУДОВЫЕ ЭНЕРГЕТИЧЕСКИЕ УСТАНОВКИ, СИСТЕМЫ И УСТРОЙСТВА</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>ON BOARD POWER PLANTS, SYSTEMS AND DEVICES</subject>
    </subj-group>
    <subj-group>
     <subject>Раздел 3 СУДОВЫЕ ЭНЕРГЕТИЧЕСКИЕ УСТАНОВКИ, СИСТЕМЫ И УСТРОЙСТВА</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">The influence of load nature on the crack kinetics. Part I. Mechanisms associated with irregular loads</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ВЛИЯНИЕ ХАРАКТЕРА НАГРУЖЕНИЯ НА КИНЕТИКУ ТРЕЩИН ЧАСТЬ L МЕХАНИЗМЫ, СОПУТСТВУЮЩИЕ НЕРЕГУЛЯРНЫМ НАГРУЗКАМ</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Файвисович</surname>
       <given-names>Александр Викторович V</given-names>
      </name>
      <name xml:lang="en">
       <surname>Fayvisovich</surname>
       <given-names>A V</given-names>
      </name>
     </name-alternatives>
     <email>faivisovich@gmail.com</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">ФГБОУ ВО «Государственный морской университет имени адмирала Ф.Ф. Ушакова»</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">ФГБОУ ВО «Государственный морской университет имени адмирала Ф.Ф. Ушакова»</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2019-09-25T20:22:29+03:00">
    <day>25</day>
    <month>09</month>
    <year>2019</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2019-09-25T20:22:29+03:00">
    <day>25</day>
    <month>09</month>
    <year>2019</year>
   </pub-date>
   <issue>3</issue>
   <fpage>151</fpage>
   <lpage>159</lpage>
   <history>
    <date date-type="received" iso-8601-date="2019-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2019</year>
    </date>
    <date date-type="accepted" iso-8601-date="2019-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2019</year>
    </date>
   </history>
   <self-uri xlink:href="https://aumsu.editorum.ru/en/nauka/article/53650/view">https://aumsu.editorum.ru/en/nauka/article/53650/view</self-uri>
   <abstract xml:lang="ru">
    <p>Кинетика макротрещины является следствием тех механизмов, которые протекают в непосредственной близости от ее кончика при воздействии на конструктивный элемент переменных по амплитуде нагрузок. Анализ литературных источников свидетельствует о значительном интересе исследователей к вопросу роста макротрещины при нерегулярном нагружении, что объясняется, как практической целесообразностью, так и простым интересом к природе явления усталостного разрушения. Установлено, что на скорость роста трещины оказывает влияние не только амплитуда нагрузки, но и история (последовательность) их воздействия. Вследствие различных сочетаний знаков и амплитуд нагрузок и их последовательности, возможны противоположные результаты, приводящие, как к замедлению, так и к возрастанию скорости трещины. В первой части работы основное внимание уделено возможным механизмам, протекающим в период нестабильности трещины в непосредственной близости от ее устья. Во второй части статьи будет приведена классификация нерегулярных нагрузок с соответствующими последствиями на кинетику трещины.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The kinetics of a macrocrack is a consequence of the mechanisms that occur in the immediate vicinity of its tip when the structural element is exposed to variable amplitude loads. Analysis of the literature indicates a significant interest of investigators to the question of macrocrack growth under irregular loading, which is explained by both practical expediency and simple interest in the nature of the phenomenon of fatigue failure. It was found that the crack growth rate is influenced not only by the amplitude of the load, but also by the history (sequence) of their impact. Due to different combinations of values and amplitudes of loads and their sequence, an opposite result is possible, leading to both a slowdown and an increase in the crack velocity. In the first part of the paper, the main attention is paid to the possible mechanisms occurring during the instability of the crack in the immediate vicinity of its tip. In the second part of the article the classification of irregular loads with corresponding consequences on the fracture kinetics will be given.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>макротрещина</kwd>
    <kwd>скорость роста трещины</kwd>
    <kwd>конструктивный элемент</kwd>
    <kwd>коэффициент интенсивности напряжений</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>macrocrack</kwd>
    <kwd>crack growth rate</kwd>
    <kwd>structural element</kwd>
    <kwd>stress intensity factor</kwd>
   </kwd-group>
  </article-meta>
 </front>
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  <p></p>
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