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Modelling isotropic and kinematic hardening of granular materials with a thermodynamical approach

Miranda Pino, LF; Kelly, PA; Baudet, BA; (2017) Modelling isotropic and kinematic hardening of granular materials with a thermodynamical approach. In: Vandamme, M and Dangla, P and Pereira, JM and Ghabezloo, S, (eds.) Poromechanics VI: Proceedings of the Sixth Biot Conference on Poromechanics. (pp. pp. 1053-1060). ASCE Press: Paris, France. Green open access

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Abstract

The thermodynamic framework for continuum mechanics can be applied to model granular and porous materials. Broadly speaking, there exists two approaches: the French school approach and Ziegler’s approach. Despite the fact that they both have the same foundations, differences between them emerge regarding the way in which stored energy is accounted for. This is illustrated here by applying the two approaches to the classical Von Mises kinematic and isotropic hardening models. In Ziegler’s approach, the stored energy is solely used for the kinematic hardening, as opposed to the French school approach in which the stored energy is allowed in both cases of hardening. In spite of which modelling approach is taken, we will show how certain modifications to these theories have to be made in order to develop the classical modified Cam Clay model, which emphasises the difference between the classical and the thermodynamic formulations.

Type: Proceedings paper
Title: Modelling isotropic and kinematic hardening of granular materials with a thermodynamical approach
Event: Sixth Biot Conference on Poromechanics
Location: Paris
Dates: 09 July 2017 - 13 September 2017
Open access status: An open access version is available from UCL Discovery
DOI: 10.1061/9780784480779.131
Publisher version: http://doi.org/10.1061/9780784480779.131
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1572295
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