Crack propagation in a Tantalum nano-slab

  • Alejandro Strachan
  • , Tahir Çain
  • , William A. Goddard

Research output: Contribution to journalConference articlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)151-159
Number of pages9
JournalJournal of Computer-Aided Materials Design
Volume8
Issue number2-3
DOIs
Publication statusPublished - 1 Dec 2001
Externally publishedYes
Event3rd Annual Caltech ASCI/ASAP Center materials Properties Workshop - Urbana, IL, United States
Duration: 24 Jan 200125 Jan 2001

Keywords

  • Crack propagation
  • Ductile fracture
  • Failure
  • Molecular dynamics
  • Tantalum

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