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Thermo-Viscoplastic Subloading Soil Model for Isotropic Stress and Strain Conditions

  • J. R. MaranhaEmail author
  • C. Pereira
  • A. Vieira
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

Abstract

This paper presents a thermo-viscoplastic subloading soil model with a mobile centre of homothety. The model is formulated to describe the influence of non-isothermal conditions on the stress-strain-time behaviour of soils and is restricted to isotropic stress and strain conditions. Numerical simulations of three isotropic drained heating tests at constant isotropic effective stress for different overconsolidation ratios were performed. The model was able to accurately reproduce the experimental results.

Keywords

Yield Surface Volumetric Strain Viscoplastic Strain Isotropic Stress Compression Line 
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Notes

Acknowledgements

The authors acknowledge the support provided by the Portuguese Foundation for Science and Technology, under the Project Success (Sustainability of shallow geothermal systems. Applied studies to southern Europe climates PTDC/ECM-GEO/0728/2014).

References

  1. Cekerevac C, Laloui L (2004) Experimental study of the thermal effects on the mechanical behaviour of a clay. Int J Numer Anal Meth Geomech 28(3):209–228CrossRefGoogle Scholar
  2. Maranha JR, Pereira C, Vieira A (2016) A viscoplastic subloading soil model for rate dependent cyclic anisotropic structured behaviour. Int J Numer Anal Meth Geomech 40(11):1531–1555CrossRefGoogle Scholar
  3. Pereira C, Maranha JR, Brito A (2014) Advanced constitutive model calibration using genetic algorithms: some aspects. In: Proceedings of the 8th european conference on numerical methods in geotechnical engineering, Delft, The Netherlands. CRC Press, Boca Raton, pp 485–490Google Scholar
  4. Perzina P (1966) Fundamental problems in viscoplasticity. Adv Appl Mech 9(2):244–368MathSciNetGoogle Scholar
  5. Vieira A, Maranha JR (2016) Thermoplastic analysis of a thermoactive pile in a normally consolidated clay. Int J Geomech. doi: 10.1061/(ASCE)GM.1943-5622.0000666 Google Scholar

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Geotechnics DepartmentNational Laboratory for Civil Engineering (LNEC)LisbonPortugal

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