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On the dependence of the threshold energy of small erodent particles on their geometry in erosion fracture


The structural-temporal approach and the incubation time criterion are used to study the threshold energy necessary to initiate erosion fracture of a material surface. The behavior of the energy threshold values depending on the indentor geometry (ball, cylinder, and body of revolution) is analyzed. The graphs of threshold energy versus impact pulse duration and radius are drawn. The difference in the behavior of energy for small particles in these cases is established.

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Correspondence to N. A. Gorbushin.

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Original Russian Text © G.A. Volkov, N.A. Gorbushin, Yu.V. Petrov, 2012, published in Izvestiya Akademii Nauk. Mekhanika Tverdogo Tela, 2012, No. 5, pp. 6–13.

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Volkov, G.A., Gorbushin, N.A. & Petrov, Y.V. On the dependence of the threshold energy of small erodent particles on their geometry in erosion fracture. Mech. Solids 47, 491–497 (2012).

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  • fracture
  • erosion
  • incubation time criterion
  • threshold energy