Crack propagation in a Tantalum nano-slab

  • Alejandro Strachan
  • Tahir Çağin
  • William A. GoddardIII


Using molecular dynamics with an accurate many-body potential for metallic Tantalum, we studied crack propagation in a pre-notched nano-slab under uniaxial strain in a [100] direction. We study dislocation emission from the crack tip for various strain rate and temperatures, focusing on the influence of the local temperature at the crack tip on the propagation of the crack. We find a close connection between the local temperature at the crack tip and dislocation emission.

Crack propagation Ductile fracture Failure Molecular dynamics Tantalum 


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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • Alejandro Strachan
    • 1
  • Tahir Çağin
    • 1
  • William A. GoddardIII
    • 1
  1. 1.Materials and Process Simulation Center, Beckman Institute (139-74)California Institute of TechnologyU.S.A

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