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Elastic moduli of soils dependent on pressure: a hyperelastic formulation

Abstract:

The elastic behaviour of granular materials is non-linear, in that the small-strain tangent stiffness depends on the stress level. The elastic moduli typically vary as power functions of the mean stress. Simple models of this non-linearity can result in behaviour that violates the laws of thermodynamics. To guarantee that an elasticity model is thermodynamically acceptable it must be possible to derive the elastic behaviour from a free energy potential (or alternatively from a complementary e...

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Publication status:
Published

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Publisher copy:
10.1680/geot.55.5.383.66021

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Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science, Civil Engineering
Amorosi, A More by this author
Journal:
GEOTECHNIQUE
Volume:
55
Issue:
5
Pages:
383-392
Publication date:
2005-06-05
DOI:
EISSN:
1751-7656
ISSN:
0016-8505
URN:
uuid:9ffe8da8-da16-41d2-ae57-462001c39113
Source identifiers:
61557
Local pid:
pubs:61557

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