A constitutive law for concrete under monotonic biaxial loading up to peak stress is presented in the form of a total, explicit relation between stresses and strains. Explicitness is achieved by expressing the bulk and shear moduli of elasticity as nonlinear functions of the first two invariants of the strain tensor. The resulting stress-strain relation depends only on three parameters, which characterize the concrete, initial elastic moduli, and compressive strength. Its use is very simple and leads to accurate predictions of the experimental results even close to the peak stress, where inelastic dilatancy occurs.

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  • Accession Number: 00387004
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 30 1984 12:00AM