Fatigue fracture of high-strength concrete and size effect

Zdenek P Bazant*, William F. Schell

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

95 Scopus citations

Abstract

Results of an experimental study of fatigue fracture og geometrically similar high-strength concrete specimens of very different sizes are reported and analyszed. Three-point bend notched beams 1.5, 4.24, and 12 in deep were subjected to cyclic loading with a lower load limit of 0.07Pu and an upper limit between 0. 73 and 0.84 Pu. It is found that the Paris law for the crack length increment per cycle as a function of the stress intensity factor, which was previously verified for normal concrete, is also appicable to high-strength concrete. However, for specimens of different sizes, an adjustment for the size effect needs to be introduced, of a similar type as previously introduced for normal concrete.

Original languageEnglish (US)
Pages (from-to)472-478
Number of pages7
JournalACI Materials Journal
Volume90
Issue number5
StatePublished - Sep 1 1993

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)
  • Civil and Structural Engineering

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