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Mechanics of Solids

, Volume 47, Issue 5, pp 491–497 | Cite as

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

  • G. A. Volkov
  • N. A. Gorbushin
  • Yu. V. Petrov
Article

Abstract

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.

Keywords

fracture erosion incubation time criterion threshold energy 

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Copyright information

© Allerton Press, Inc. 2012

Authors and Affiliations

  • G. A. Volkov
    • 1
  • N. A. Gorbushin
    • 1
  • Yu. V. Petrov
    • 1
  1. 1.Research Center of DynamicsSt. Petersburg State UniversityPetergof, St. PetersburgRussia

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