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Acta Mechanica Solida Sinica

, Volume 19, Issue 4, pp 307–315 | Cite as

Strength criterion for plain concrete under multiaxial stress based on damage Poisson’s ratio

  • Faxing Ding
  • Zhiwu Yu
Article

Abstract

A new unified strength criterion in the principal stress space has been proposed for use with normal strength concrete (NC) and high strength concrete (HSC) in compression-compression-tension, compression-tension-tension, triaxial tension, and biaxial stress states. The study covers concrete with strengths ranging from 20 to 130 MPa. The conception of damage Poisson’s ratio is defined and the expression for damage Poisson’s ratio is determined basically. The failure mechanism of concrete is illustrated, which points out that damage Poisson’s ratio is the key to determining the failure of concrete. Furthermore, for the concrete under biaxial stress conditions, the unified strength criterion is simplified and a simplified strength criterion in the form of curves is also proposed. The strength criterion is physically meaningful and easy to calculate, which can be applied to analytic solution and numerical solution of concrete structures.

Key words

plain concrete high strength concrete multiaxial stress strength criterion meridian deviatoric plan 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2006

Authors and Affiliations

  • Faxing Ding
    • 1
  • Zhiwu Yu
    • 1
  1. 1.School of Civil Engineering and ArchitectureCentral South UniversityChangshaChina

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