Some remarks on the performance of three advanced soil constitutive models in the small-strain region
Some remarks on the performance of three advanced soil constitutive models in the small-strain region
This short communication identifies some inconsistencies in the numerical predictions of three advanced soil constitutive models. The chosen constitutive models are subject to simple numerical tests in the small-strain range relevant to the cyclic response of soil in seismic, offshore and urban applications. The numerical tests comprise a cyclic simple shear test in the small-strain range, a simple shear test with very small strain unloading-reloading loops and a test on the dependence of the rate of the shear stiffness degradation on the changing mean confining stress. The results are briefly discussed and, in some cases, the reasons for the observed inconsistencies and potential improvements in the formulations of the investigated constitutive models are initially drafted.
Constitutive modelling, elastoplasticity, hypoplasticity, offshore loading, overshooting, shear wave propagation, small strain behaviour
310-319
Kowalczyk, Piotr
16706e33-102a-4db1-b573-79f58971cff3
2023
Kowalczyk, Piotr
16706e33-102a-4db1-b573-79f58971cff3
Kowalczyk, Piotr
(2023)
Some remarks on the performance of three advanced soil constitutive models in the small-strain region.
International Journal of Geotechnical Engineering, 17 (3), .
(doi:10.1080/19386362.2023.2208917).
Abstract
This short communication identifies some inconsistencies in the numerical predictions of three advanced soil constitutive models. The chosen constitutive models are subject to simple numerical tests in the small-strain range relevant to the cyclic response of soil in seismic, offshore and urban applications. The numerical tests comprise a cyclic simple shear test in the small-strain range, a simple shear test with very small strain unloading-reloading loops and a test on the dependence of the rate of the shear stiffness degradation on the changing mean confining stress. The results are briefly discussed and, in some cases, the reasons for the observed inconsistencies and potential improvements in the formulations of the investigated constitutive models are initially drafted.
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Accepted/In Press date: 24 April 2023
e-pub ahead of print date: 16 May 2023
Published date: 2023
Additional Information:
Funding Information: this research received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement no. 721816.
Keywords:
Constitutive modelling, elastoplasticity, hypoplasticity, offshore loading, overshooting, shear wave propagation, small strain behaviour
Identifiers
Local EPrints ID: 479975
URI: http://eprints.soton.ac.uk/id/eprint/479975
ISSN: 1938-6362
PURE UUID: 309dc0c9-02da-49c5-98da-6e2824528207
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Date deposited: 31 Jul 2023 16:54
Last modified: 17 Mar 2024 04:17
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Author:
Piotr Kowalczyk
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