Modeling of high-speed penetration into concrete shields and shape optimization of impactors

G. Ben-Dor, A. Dubinsky, T. Elperin

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

We modified the model of Forrestal and Tzou (1997) for a case of an arbitrary impactor having a shape of a body of revolution with a plane bluntness and derived a formula for the depth of penetration (DOP) into semi-infinite concrete shield. The shape of the impactor that attains the maximum DOP for a given impact velocity is found through analytical investigation of a corresponding non-classical variational problem when the criterion of optimization is a function of integral functionals of the unknown solution. It is shown that the optimum shape is close to a blunt cone. The influence of the penetration model parameters on the optimum solution is studied.

Original languageEnglish
Pages (from-to)139-156
Number of pages18
JournalMechanics Based Design of Structures and Machines
Volume34
Issue number2
DOIs
StatePublished - 1 Jul 2006

Keywords

  • Concrete
  • Impact
  • Modeling
  • Optimization
  • Penetration

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • General Mathematics
  • Automotive Engineering
  • Aerospace Engineering
  • Condensed Matter Physics
  • Ocean Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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