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An energy-based approach for fatigue crack growth

  • Delong Fu*
  • , Li Zhang
  • , Jin Cheng
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A fatigue crack growth model under constant amplitude loading based on the total plastic energy dissipation per cycle ahead of the crack was proposed. With the energy balance concept, the crack growth rate was correlated with the total plastic dissipation per cycle, and the total plastic dissipation per cycle was obtained through 2-D elastic-plastic finite element analysis of a stationary crack under constant amplitude. The predictions of the model were in good with the experimental results.

Original languageEnglish
Pages (from-to)379-382
Number of pages4
JournalKey Engineering Materials
Volume324-325 I
DOIs
StatePublished - 2006

Keywords

  • Crack growth
  • Crack tip
  • Energy balance
  • Plastic dissipation

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