The concept of reference curves for constitutive modelling in soil mechanics

Pedroso, Dorival M., Sheng, Daichao and Zhao, Jidong (2009) The concept of reference curves for constitutive modelling in soil mechanics. Computers and Geotechnics, 36 1-2: 149-165. doi:10.1016/j.compgeo.2008.01.009


Author Pedroso, Dorival M.
Sheng, Daichao
Zhao, Jidong
Title The concept of reference curves for constitutive modelling in soil mechanics
Journal name Computers and Geotechnics   Check publisher's open access policy
ISSN 0266-352X
1873-7633
Publication date 2009-01
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.compgeo.2008.01.009
Volume 36
Issue 1-2
Start page 149
End page 165
Total pages 7
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Language eng
Abstract This paper presents a simple concept which can be used for simulating a range of soil mechanics problems. The study is motivated by the observation that many experimental results are commonly described in terms of lines or curves according to a phenomenological approach. Frequently, these relations are based on rather different formulations from one application to another, and in complex forms for some cases. This leads to complications for the calibration of parameters as well as constitutive modelling. Thus, a general framework referred to as “reference curves” has been developed. This framework provides a unique treatment of the macroscopically observed behaviour of clays, sands, and structured materials under isotropic compression, as well as the water retention characteristics of granular materials and geotextiles. Several examples are provided illustrating the good accuracy of models developed with this concept. The proposed framework may be equally applied to any other behaviour where reference lines are easily identifiable from a macroscopic scope, such as some non-linear failure envelopes for granular materials. In addition, we show that the incorporation of the proposed equations into constitutive models is quite straightforward.
Keyword Constitutive models
Reference curves concept
Clays
Sands
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Available online 24 March 2008. Journal issue: January-March 2009.

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Civil Engineering Publications
 
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Created: Thu, 17 Mar 2011, 15:18:48 EST by Jeannette Watson on behalf of School of Civil Engineering