Abstract
Abstract
In this paper, the constitutive relation of fractured rock mass under uniaxial tension is derived, and the corresponding numerical solution is obtained. It is found that the kernel function with the Proney expansion can fit well with the ρ(z)=Cz
−α
. When the parameters of the kernel function are taken from the experimental data, the constitutive equation can be simplified in the initial loading stage, which is in good agreement with Jin Fen α = 0.5 gnian’s experimental data under unloading condition. The simplified equation of the endochronic theory is well verified by the experimental data.
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