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Влияние энергии разрушения на развитие кольцевой трещины в цилиндре при его охлаждении

Влияние энергии разрушения на развитие кольцевой трещины в цилиндре при его охлаждении

Abstract

Рассчитываются температурные поля и термоупругие и напряжения в сплошном цилиндре с внешней кольцевой трещиной, вызванные охлаждением цилиндра и источником теплоты, который моделирует мгновенное выделение энергии на берегах трещины за счет ее роста при охлаждении цилиндра. Показано, что величины температурных полей и напряжений, вызванных источником теплоты, ничтожно малы по сравнению с термоупругими напряжениями, связанными с охлаждением цилиндра и вызывающими мгновенный рост кольцевой трещины.

Temperature fields and thermoelastic stresses in a solid cylinder with an outer ring-shaped crack caused by cylinder cooling and heat source which models an instant energy liberation on crack banks because of crack's growth at cylinder cooling are computed. It is shown that the values of these temperature fields and stresses are negligibly small as compared with thermoelastic stresses connected with cylinder cooling and causing instant growth of the ringshaped crack.

Keywords

ЦИЛИНДР, НЕОРГАНИЧЕСКОЕ СТЕКЛО, КОЛЬЦЕВАЯ ТРЕЩИНА, МГНОВЕННЫЙ ИСТОЧНИК ТЕПЛОТЫ, ОХЛАЖДЕНИЕ, ТЕРМОУПРУГИЕ НАПРЯЖЕНИЯ

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selected citations
These citations are derived from selected sources.
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
Average
Average