Simulation of shear banding and crack propagation in bulk metallic glass matrix composites

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11 Citations (Scopus)

Abstract

Different modes of shear banding in bulk metallic glass (BMG) matrix composites are identified from the systematic simulation studies based on a mesoscopic phase-field model for deformation in glassy alloys. We characterize the interaction between shear band and crystalline reinforcements by considering the residual stress and atomic bonding condition at the interface between BMG-matrix and the reinforcement. The simulation demonstrates that compressive residual stress assists to impede the shear bands propagating toward the reinforcements, while tensile residual stress accelerates such process. In addition, the effect of atomic bonding at the interface on shear banding is investigated by the simulation. The relations between the fracture toughness and the residual stress and atomic bonding condition at the interface are quantitatively determined.
Original languageEnglish
JournalJournal of Alloys and Compounds
Volume509
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 14 Jul 2011

Keywords

  • Composite
  • Computer simulations
  • Metallic glasses
  • Shear band

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

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