Development of model of the superdeep penetration of microparticles

V. A. Simonenko, V. V. Bashurov, N. A. Skorkin, T. Elperin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In 1974 an unusual phenomenon called Usherenko effect was observed in impact experiments [1,2]. Surprisingly large were impact produced craters whose depth varied between 100 and 10000 times the impactor's size. For materials whose static strength is small or zero, e.g., sand or water, the depth of penetration is no larger than 100 times the size. When a macro-size body impacts on a barrier, it produces a crater whose depth is normally in a ratio of no larger than 6-10 to the body's size regardless impact parameters. The papers [1,3] give overviews of models which were developed to explain the phenomenon. They all try to answer why material resistance to the penetration of micro-size impactors suddenly decreases. We suggest a model that uses the concept of particle entrainment by a shock produced by the impact of a bunch of particles on a barrier. The approach was proposed by V.A. Simonenko [4]. It is based on calculations by the finite-difference technique TWS [5,6]. Such an approach shows prospects for further development with account for new experimental results obtained after 1991. The goal of this paper is to demonstrate feasibility of applying this approach for justification of impactor's acceleration in solid.

Original languageEnglish
Title of host publicationMulti-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
PublisherTrans Tech Publications
Pages1266-1269
Number of pages4
ISBN (Print)0878493786, 9780878493784
DOIs
StatePublished - 1 Jan 2008
EventMulti-functional Materials and Structures - International Conference on Multifunctional Materials and Structures - Hong Kong, P.R., China
Duration: 28 Jul 200831 Jul 2008

Publication series

NameAdvanced Materials Research
Volume47-50 PART 2
ISSN (Print)1022-6680

Conference

ConferenceMulti-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
Country/TerritoryChina
CityHong Kong, P.R.
Period28/07/0831/07/08

Keywords

  • Effect Usherenko
  • Method of the finite differenc
  • Numerical modeling
  • Penetration of microparticles
  • Strong shock wave

ASJC Scopus subject areas

  • Engineering (all)

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