The subloading isotropic plasticity as a variable modulus model

Pedroso, Dorival M. (2014) The subloading isotropic plasticity as a variable modulus model. Computers and Geotechnics, 61 230-240. doi:10.1016/j.compgeo.2014.05.013


Author Pedroso, Dorival M.
Title The subloading isotropic plasticity as a variable modulus model
Journal name Computers and Geotechnics   Check publisher's open access policy
ISSN 0266-352X
1873-7633
Publication date 2014-09-01
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.compgeo.2014.05.013
Open Access Status Not Open Access
Volume 61
Start page 230
End page 240
Total pages 11
Place of publication Kidlington, Oxford United Kingdom
Publisher Pergamon Press
Language eng
Abstract The subloading concept is an extension of mathematical plasticity which defines an internal surface to the conventional yield surface. It is indeed a versatile approach, especially for the modelling of soils under quasi-static cycles with smooth transitions from pure elastic to elastoplastic behaviour. For the case of isotropic hardening models, this paper demonstrates that the subloading isotropic plasticity is equivalent to a variable modulus approach and therefore a simpler and equivalent methodology can be adopted instead. In addition to demonstrating this equivalence, an alternative formulation that was presented elsewhere and that uses only one surface is briefly discussed. The alternative formulation can then be easily applied to popular models for soils such as the Cam clay model. Finally, some numerical predictions are presented in order to illustrate the capabilities of the subloading isotropic plasticity and the corresponding variable modulus approach.
Keyword Subloading plasticity
Isotropic hardening models
Conventional plasticity
Variable moduli plasticity
Concept of references
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2015 Collection
 
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