Acta Mechanica Solida Sinica

, Volume 24, Issue 3, pp 216–230 | Cite as

Modelling strain-rate-dependency of natural soft clays combined with anisotropy and destructuration

  • Zhen-Yu Yin
  • Minna Karstunen


The paper aims to investigate modelling the strain-rate-dependency of natural soft clays combined with anisotropy and destructuration using an elasto-viscoplastic model. The model is based on Perzyna’s overstress theory and the elastoplastic model S-CLAY1S. Tests at constant strain-rate and creep tests under both one-dimensional and triaxial conditions on several clays are simulated. Simulations highlight the loading scenarios in which it is necessary to account for anisotropy and/or destructuration in order to get accurate predictions. Comparisons between the predicted and measured results demonstrate that the proposed model can successfully reproduce the time-dependent behaviour of natural soft clays under different loading conditions.

Key words

anisotropic materials creep debonding time-dependent 


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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2011

Authors and Affiliations

  1. 1.Department of Civil EngineeringShanghai Jiao Tong UniversityShanghaiChina
  2. 2.Department of Civil EngineeringUniversity of StrathclydeGlasgowUK

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