A 3D hypoelastic concrete constitutive relationship
Journal of the Engineering Mechanics Division, 105 (4):
623--641 (1979)Abstract
A three-dimensional constitutive relationship for concrete is developed
and results are compared to experimental data available in the literature.
The model uses the concept of equivalent uniaxial strain, the nonlinear
stress-strain equation of Saenz, and the Argyris failure surface
for concrete strength. The technique of evaluating the parameters
to adjust the constitutive relationship for various concretes is
examined. Comparison is made with the biaxial experimental data of
Kupfer, Hilsdorf, and Rusch, and with the three-dimensional experimental
data of Schickert and Winkler. The model appears capable of simulating
the stress-strain response of concrete under a large range of conditions
and is easily incorporated into finite element programs. Flow charts
for implementation of the constitutive relationship are presented.