Response of copper to shock-wave loading at temperatures up to the melting point

Zaretsky, E.B.; Kanel, G.I.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 2 сентября 2016 г.

Авторы: Zaretsky E.B., Kanel G.I.
Журнал: Journal of Applied Physics
Том: 114
Год издания: 2013
Издательство: AIP Publishing
Местоположение издательства: United States
Первая страница: 083511
Последняя страница: 083511
DOI: 10.1063/1.4819328
Аннотация: The evolution of elastic-plastic shock waves as a function of the propagation distance has been studied in 99.999% purity polycrystalline copper over the 300 to 1353K temperature range. The free surface velocity histories of shock-loaded samples 0.1 to 2.0mm in thickness have been recorded using the velocity interferometer. The measured decay of the elastic precursor waves has been converted into relationships between the shear stress at Hugoniot elastic limit and the initial plastic strain rate. Above 1100 K, the shape of the elastic precursor wave changes with the appearance of a sharp spike at its front part. This change is treated in terms of nucleation and multiplication of mobile dislocations. An analysis of the rise times of the plastic shock waves has shown that for the same level of shear stress, the plastic strain rates after a 2% compressive strain increase with respect to those just behind the elastic precursor front by a factor of 300 at 300K and by a factor of 30 at 1353K.VC
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Response of copper to shock-wave loading at temperatures up to the melting pointстатья

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