A Numerical Simulation of the Crack Growth in a Smooth CT Specimen

W. Y. Yan, G. X. Shan, O. Kolednik, F. D. Fischer

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6 Citations (Scopus)

Abstract

The numerical simulation of the crack growth in Compact Tension specimens which are plain sided is presented. The curves of the local crack extension (Δa) along the crack front vs. the load line displacement (νLL) from a JIC-multi-specimen test are used to control fracture initiation and crack growth. The agreement between the experimental and the computed load vs. displacement and J-integral vs. Δa curves is checked. Additionally, it is studied how some local parameters determined along the crack front, like the crack tip opening displacement (CTOD) or the triaxiality parameter σmeqm = mean stress, σeq =equivalent stress) change during the crack extension.

Original languageEnglish
Pages (from-to)179-184
Number of pages6
JournalKey Engineering Materials
Volume145-149
Publication statusPublished - 1 Dec 1998
Externally publishedYes

Keywords

  • Constraint
  • Crack Growth
  • Local CTOD
  • Three-Dimensional Numerical Simulation

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