Behavior of Concrete Under Nonproportional Biaxial Fatigue Stresses with One Constant

This paper discusses the behavior of concrete subjected to biaxial compression and uniaxial fatigue. Tests are performed on 100 x 100 x 100 mm cube specimens. Within the tests, three lateral stress levels – 0, 0.25, and 0.5 – are performed. The paper also reports on the achievement of experimental stress-strain curves, along with a proposal for using empirical relationships to predict the maximum stress level as a function of lateral stress and fatigue life. Results show that increasing horizontal stress leads to failure mode change and an increase in maximum vertical load-carrying capacity. According to the author, failure modes also indicate that concrete presents similar failure patterns under monotonic and fatigue loadings. From experimental results, the author presents a damage model for predicting the behavior of concrete subjected to biaxial fatigue compression. Good agreement is shown in comparing theoretical stress-strain curves with the experimental data.

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  • Authors:
    • Lu, Peiyin
    • Li, Qingbin
    • Song, Yupu
  • Publication Date: 2007-1


  • English

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  • Accession Number: 01045250
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 22 2007 5:15AM