Local impact effects of hard missiles on concrete targets

Stephen R Reid, Q. M. Li, H. M. Wen, A. R. Telford

Research output: Contribution to journalArticle

292 Citations (Scopus)

Abstract

This paper presents the recent progress in formulating and modeling local impact effects in concrete targets struck by hard missiles. New research results in this area are also presented, these being part of the UK nuclear safety program against impact threats on concrete structures in nuclear power stations conducted under the auspices of Magnox Electric.

Failure mechanisms are classified based primarily on experimental evidence. First, a collection of empirical formulae to predict the penetration depth, scabbing thickness and perforation thickness is presented in both Imperial and SI units. The current status of various design codes is then summarized. Based on a dimensional analysis, dominant non-dimensional parameters that may influence the local impact effects on concrete targets are obtained and then used to present some of the test data.

Various nose shape factors are compared and a unique definition of the nose shape factor is suggested. Analytical models and numerical simulation methods for penetration are summarized. Criticisms are made for the current understanding of the effects of strain rate on the unconfined uniaxial compressive strength of concrete-like materials based on measurements by the split Hopkinson pressure bar technique. (c) 2005 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)224-284
Number of pages60
JournalInternational Journal of Impact Engineering
Volume32
Issue number1-4
DOIs
Publication statusPublished - Dec 2005

Keywords

  • impact
  • hard missile
  • nose shape factor
  • concrete target
  • spalling
  • penetration
  • scabbing
  • perforation
  • empirical formulae
  • design codes
  • analytical models
  • numerical simulation
  • strain-rate effect
  • SHPB
  • HOPKINSON PRESSURE BAR
  • SPHERICAL CAVITY-EXPANSION
  • NOSE STEEL PROJECTILES
  • 6061-T6511 ALUMINUM TARGETS
  • NON-DEFORMABLE PROJECTILE
  • HIGH-STRAIN RATES
  • REINFORCED-CONCRETE
  • LIMESTONE TARGETS
  • SOLID MISSILES
  • LOADING RATE

Cite this

Local impact effects of hard missiles on concrete targets. / Reid, Stephen R; Li, Q. M.; Wen, H. M.; Telford, A. R.

In: International Journal of Impact Engineering, Vol. 32, No. 1-4, 12.2005, p. 224-284.

Research output: Contribution to journalArticle

Reid, Stephen R ; Li, Q. M. ; Wen, H. M. ; Telford, A. R. / Local impact effects of hard missiles on concrete targets. In: International Journal of Impact Engineering. 2005 ; Vol. 32, No. 1-4. pp. 224-284.
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