EXTENSION OF THE ELASTO-VISCOPLASTIC MODEL IN CONSIDERATION OF THE PC-EFFECT BY SECONDARY CONSOLIDATION

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  • 二次圧密による先行効果を考慮した弾・粘塑性構成モデルの拡張

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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.<br> 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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