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Остаточные напряжения и Ð¼ÐµÑ Ð°Ð½Ð¸Ð·Ð¼Ñ‹ релаксации в Ð¿ÐµÐ½Ñ‚Ð°Ð³Ð¾Ð½Ð°Ð»ÑŒÐ½Ñ‹Ñ Ð½Ð°Ð½Ð¾Ñ‡Ð°ÑÑ‚Ð¸Ñ†Ð°Ñ

магистерская диссертация

Остаточные напряжения и Ð¼ÐµÑ Ð°Ð½Ð¸Ð·Ð¼Ñ‹ релаксации в Ð¿ÐµÐ½Ñ‚Ð°Ð³Ð¾Ð½Ð°Ð»ÑŒÐ½Ñ‹Ñ Ð½Ð°Ð½Ð¾Ñ‡Ð°ÑÑ‚Ð¸Ñ†Ð°Ñ

Abstract

В результате исследования построена теоретическая модель, описывающая механизм релаксации остаточных напряжений в пентагональных кристаллических наноструктурах путем формирования отдельной КПДП. Напряженное состояние частицы моделируется с помощью упругого шара с аксиально расположенной в нем положительной клиновой дисклинацией. В основу предлагаемого решения положено найденное ранее точное выражение для упругой энергии КПДП в однородном упругом шаре. Определены наиболее энергетически предпочтительные места ее зарождения. Показано, что зарождение КПДП становится эффективным каналом релаксации остаточных напряжений при достижении частицей некоторого критического размера, который зависит от геометрических параметров наночастиц и свойств материала.

Keywords

Напряжения остаточные, Наноструктурные материалы, Релаксация

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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