Derivation and Validation of a Material Model for Clayey Sand for Use in Landmine Detonation Computational Analyses

Abstract

A large-strain/high-deformation rate model for clay-free sand recently proposed and validated in our work [1,2], has been extended to sand containing relatively small (less than 15vol.%) of clay and having various levels of saturation with water. The model includes an equation of state which represents the material response under hydrostatic pressure, a strength model which captures material behavior under elastic-plastic conditions and a failure model which defines conditions and laws for the initiation and evolution of damage/failure in the material. The model was validated by comparing the computational results associated with detonation of a landmine in clayey sand (at different levels of saturation with water) with their computational counterparts.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2008
Accession Number
ADA595574

Entities

People

  • Bhaskar Pandurangan
  • Bryan A. Cheeseman
  • Mica Grujicic
  • N. Coutris
  • R. R. Skaggs
  • W. N. Roy

Organizations

  • Clemson University

Tags

Communities of Interest

  • Biomedical
  • Counter IED
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Blast Loads
  • Blast Waves
  • Bulk Modulus
  • Computer Programs
  • Detonations
  • Differential Equations
  • Dynamic Response
  • Equations
  • Explosions
  • Explosives
  • Health Services
  • High Energy
  • Land Mines
  • Materials
  • Mechanics
  • Personal Information Managers
  • Pressure Transducers

Readers

  • Computational Fluid Dynamics (CFD)
  • Geotechnical Engineering.
  • Mechanical Engineering/Mechanics of Materials.