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Date of Publication:2013-01-01

Journal:计算力学学报

Issue:z1

Page Number:205-208

ISSN No.:1007-4708

Abstract:This paper presents a recursion scheme of constitutive model of orthogonal viscoelastic jointed rock mass and FEM recursive solution model of equivalent viscoelastic field. In the solving process, the calculation error can be avoided through the adaptive computation when the size of time step changes. The equivalent analysis of the calculation results and the finite element heterogeneous solutions based on ANSYS are compared through typical example that have been considered in the calculation of different constitutive combination, different joint relative width and orientation, different geometric structures, and different step length. Equivalent model results are satisfactory under the consideration of the calculation precision and the calculation cost.

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