Relations between Parameters of Fracture Processes on Different Scale Levels

N. V. Mikhailova, G. A. Volkov, Yu. V. Petrov, I. V. Smirnov, P. Onawumi, A. Roy, V. Silberschmidt

Результат исследований: Научные публикации в периодических изданияхстатья


The processes of ultrasonically-assisted drilling (UAD) and the dynamic tests on split Hopkinson pressure bar (SHPB), fracture in which is implemented at various structural-scale levels, are considered. The simulation of UAD based on the Hertz contact problem and the structural-time criterion is presented. The problem of using the value of the fracture incubation time and its linear size obtained from the tests on SHPB in the simulation is considered. A principle of equal power is used for converting the strength parameters into another structural-scale level. The theoretical curve obtained in the simulation is compared with the results of experiments on conventional drilling (CD) and UAD.

Язык оригиналаАнглийский
Страницы (с-по)459-461
Число страниц3
ЖурналDoklady Physics
Номер выпуска11
СостояниеОпубликовано - 1 ноя 2018

Предметные области Scopus

  • Физика и астрономия (все)
  • Сопротивление материалов