Дислокационные неупругие явления при различных уровнях задемпфированности

Численными методами изучена динамика установившихся колебаний единичной дислокационной петли в широком интервале частот вынужденных колебаний и при различных уровнях задемпфированности.Получены зависимости дислокационной деформации и рассеиваемой мощности от внешнего напряжения при различных уровнях...

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Дата:2000
Автори: Белошапка, В.Я., Гурьянов, В.Г., Платков, В.Я.
Формат: Стаття
Мова:Russian
Опубліковано: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2000
Назва видання:Физика низких температур
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Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/129051
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Дислокационные неупругие явления при различных уровнях задемпфированности / В.Я. Белошапка, В.Г. Гурьянов, В.Я. Платков // Физика низких температур. — 2000. — Т. 26, № 3. — С. 294-303. — Бібліогр.: 22 назв. — рос.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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spelling irk-123456789-1290512018-02-06T18:43:42Z Дислокационные неупругие явления при различных уровнях задемпфированности Белошапка, В.Я. Гурьянов, В.Г. Платков, В.Я. Низкотемпературная физика пластичности и прочности Численными методами изучена динамика установившихся колебаний единичной дислокационной петли в широком интервале частот вынужденных колебаний и при различных уровнях задемпфированности.Получены зависимости дислокационной деформации и рассеиваемой мощности от внешнего напряжения при различных уровнях задемпфированности. Изучены амплитудные зависимости таких интегральных характеристик динамики движения дислокаций, как внутреннее трение, дефект модуля упругости и их отношение. Установлено критическое значение уровня задемпфированности дислокационной петли, начиная с которого дислокационный гистерезис теряет статические и приобретает динамические черты. Исследованы особенности формирования дислокационного гистерезиса в условиях его трансформации от статического типа к динамическому. A numerical investigation is made into the dynamics of steady-state oscillations of an isolated dislocation loop over a wide interval of forced oscillation frequencies and at different levels of damping. The dependence of the dislocation-related strain and power dissipation on the external stress is found for different levels of damping. The amplitude dependences of such integral characteristics of the dynamics of dislocation motion as the internal friction, the elastic-modulus defect, and the ratio of the two are investigated. A critical value of the damping level of the dislocation loop is found at which the dislocation hysteresis begins to lose its static character and starts to take on dynamic traits. The features of the formation of dislocation hysteresis under conditions of its transformation from a static to a dynamic type are established. 2000 Article Дислокационные неупругие явления при различных уровнях задемпфированности / В.Я. Белошапка, В.Г. Гурьянов, В.Я. Платков // Физика низких температур. — 2000. — Т. 26, № 3. — С. 294-303. — Бібліогр.: 22 назв. — рос. 0132-6414 PACS: 74.25.Ld, 61.72.Hh, 62.40.+i http://dspace.nbuv.gov.ua/handle/123456789/129051 ru Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language Russian
topic Низкотемпературная физика пластичности и прочности
Низкотемпературная физика пластичности и прочности
spellingShingle Низкотемпературная физика пластичности и прочности
Низкотемпературная физика пластичности и прочности
Белошапка, В.Я.
Гурьянов, В.Г.
Платков, В.Я.
Дислокационные неупругие явления при различных уровнях задемпфированности
Физика низких температур
description Численными методами изучена динамика установившихся колебаний единичной дислокационной петли в широком интервале частот вынужденных колебаний и при различных уровнях задемпфированности.Получены зависимости дислокационной деформации и рассеиваемой мощности от внешнего напряжения при различных уровнях задемпфированности. Изучены амплитудные зависимости таких интегральных характеристик динамики движения дислокаций, как внутреннее трение, дефект модуля упругости и их отношение. Установлено критическое значение уровня задемпфированности дислокационной петли, начиная с которого дислокационный гистерезис теряет статические и приобретает динамические черты. Исследованы особенности формирования дислокационного гистерезиса в условиях его трансформации от статического типа к динамическому.
format Article
author Белошапка, В.Я.
Гурьянов, В.Г.
Платков, В.Я.
author_facet Белошапка, В.Я.
Гурьянов, В.Г.
Платков, В.Я.
author_sort Белошапка, В.Я.
title Дислокационные неупругие явления при различных уровнях задемпфированности
title_short Дислокационные неупругие явления при различных уровнях задемпфированности
title_full Дислокационные неупругие явления при различных уровнях задемпфированности
title_fullStr Дислокационные неупругие явления при различных уровнях задемпфированности
title_full_unstemmed Дислокационные неупругие явления при различных уровнях задемпфированности
title_sort дислокационные неупругие явления при различных уровнях задемпфированности
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
publishDate 2000
topic_facet Низкотемпературная физика пластичности и прочности
url http://dspace.nbuv.gov.ua/handle/123456789/129051
citation_txt Дислокационные неупругие явления при различных уровнях задемпфированности / В.Я. Белошапка, В.Г. Гурьянов, В.Я. Платков // Физика низких температур. — 2000. — Т. 26, № 3. — С. 294-303. — Бібліогр.: 22 назв. — рос.
series Физика низких температур
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