FANG Tao, LIU Xin-rong, HUANG Ming. Transformational relations between parameters of rock damage viscoelastic model using different modeling approaches[J]. 2012, 33(7).
FANG Tao, LIU Xin-rong, HUANG Ming. Transformational relations between parameters of rock damage viscoelastic model using different modeling approaches[J]. 2012, 33(7).DOI:
Considering the external influences on rock deformation as instantaneous elastic damage defined with the reduction of instantaneous elastic modulus and long-term creep damage defined with the reduction of long-term creep modulus
kBurgers model with damage is presented. In addition
three-dimensional model considering the Poisson’s ratio and bulk modulus as the constant is established separately; and the transformational relations between the parameters are obtained. According to a case study
the damage evolution of model parameters considering water content changing under the assumption of constant bulk modulus is studied. The damage evolution equations of instantaneous elasticity and long-term creep under the assumption of constant bulk modulus are obtained
which prove that transformational relations between model parameters are reasonable.