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Indexed by:期刊论文

Date of Publication:2022-06-28

Journal:计算力学学报

Volume:26

Issue:3

Page Number:301

ISSN No.:1007-4708

Abstract:A reasonable joint model is necessary for the numerical simulation of
   viscoelastic jointed rock, If considering joints and rock mass
   individually with their own constitutive model, the computational
   expense will be challenged when the number of joints is fairly large.
   This paper presents a numerical model to predict equivalent constitutive
   relationship and deformation of unidirectional viscoelastic joint rock.
   An adaptive precise algorithm in the time-domain and a simple
   equivalence assumption are combined to convert a time dependent
   inhomogeneous problem into a series of recursive time independent
   homogeneous problems which can be solved either by FEM or other well
   developed numerical schemes. An equivalent numerical simulation for an
   underground cave in unidirectional viscoelastic joint rock is given and
   compared with the solution provided by ANSYS In the viewpoint of balance
   between computing accuracy and efficiency, the results are fairly good.

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