Scaling dynamic failure: A numerical study

T. Noam, M. Dolinski, D. Rittel

Research output: Contribution to journalArticlepeer-review


Scaling failure in blast loaded structures is considered to be impossible with the known scaling laws when using fracture-mechanics based (fracture toughness) considerations (Jones, 1989). We will show in this research that scaling failure becomes possible when 2 alternative competing criteria are used, namely: maximum normal stress to describe separation (cracking) and a strain energy density-based criterion that describes adiabatic shear failure. Numerical simulations of two test-cases were carried out: Failure of circular clamped plates under close range, air blast loading, and penetration experiments. This study shows that both the prototype and small-scale model undergo scaling for those failure criteria. This study presents a new alternative to the scaling of structural failure under dynamic loading conditions, which is both simple and efficient.

Original languageEnglish
Pages (from-to)69-79
Number of pages11
JournalInternational Journal of Impact Engineering
StatePublished - Jul 2014


  • Adiabatic shear
  • Blast
  • Penetration
  • Scaling
  • Strain energy density
  • dynamic failure

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Automotive Engineering
  • Aerospace Engineering
  • Safety, Risk, Reliability and Quality
  • Ocean Engineering
  • Mechanics of Materials
  • Mechanical Engineering


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