Particle modeling of dynamic fragmentation-II: Fracture in single- and multi-phase materials

G. Wang, M. Ostoja-Starzewski, P. Radziszewski, M. Ourriban

Research output: Contribution to journalArticlepeer-review

Abstract

The second paper of this series adopts particle modeling (PM) to simulation of dynamic fracture phenomena in homogeneous and heterogeneous materials, such as encountered in comminution and blasting processes in mining industry. As the basis for such simulations, we first develop a new method to prevent particles from topologically interpenetrating themselves within the material domain, when actual fracture does not actually take place. We then move to a number of application studies: (i) fragmentation of 2-D single- and multi-phase materials-including a simulation of a drop-weight test-and (ii) fragmentation of 3-D single-phase materials under either very rapid extension or compression. These investigations show patterns and trends of fragmentation of materials in function of their constitutive properties, their geometric shapes, and the loading conditions.

Original languageEnglish (US)
Pages (from-to)116-133
Number of pages18
JournalComputational Materials Science
Volume35
Issue number2
DOIs
StatePublished - Feb 2006
Externally publishedYes

Keywords

  • Comminution
  • Constitutive relations
  • Cracks
  • Dynamics
  • Fracture mechanics
  • Minerals
  • Shocks
  • Structural modeling

ASJC Scopus subject areas

  • General Computer Science
  • General Chemistry
  • General Materials Science
  • Mechanics of Materials
  • General Physics and Astronomy
  • Computational Mathematics

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