In order to express time dependence actions, such as secondary consolidation, creep, and strain rate dependence, much elasto-viscoplastic constitutive models are proposed until now. However, in these constitutive models based on a viscoplasticity theory, the time dependence action from an overconsolidation domain to a normal consolidation domain cannot be expressed continuously. Moreover, Pc-effect by secondary consolidation cannot be evaluated quantitatively, either.
In this paper, the elasto-viscoplastic model in consideration of Pc-effect by secondary consolidation is proposed. Moreover, the simulations of shear test and consolidation test were carried out and the validity and applicability of this constitutive model were examined.
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