Crack linkup by stable crack growth

L. Ma, A. S. Kobayashi, S. N. Atluri, P. W. Tan

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Experimentally determined T*ε and CTOA resistance curves were used to simulate numerically, stable crack growth and the ensuing crack linkup in 0.8 mm thick 2024-T3 aluminum tension specimen with multiple site damage (MSD) subjected to monotonically/cyclically increasing loading. The T*ε integral correctly predicted the crack growth and linkup history as well as the onset of rapid fracture in MSD specimens. The CTOA criterion also predicted the crack growth history but in its present form, could not predict crack linkup and rapid fracture.

Original languageEnglish
Pages (from-to)19-26
Number of pages8
JournalCMES - Computer Modeling in Engineering and Sciences
Volume1
Issue number4
StatePublished - 2000

Keywords

  • CTOA
  • Crack linkup
  • Multiple site damage (MSD)
  • Stable crack growth
  • T* integral

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