SANISAND-MSf: a sand plasticity model with memory surface and semifluidised state
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F22%3A00534333" target="_blank" >RIV/61388998:_____/22:00534333 - isvavai.cz</a>
Result on the web
<a href="https://www.icevirtuallibrary.com/doi/10.1680/jgeot.19.P.363" target="_blank" >https://www.icevirtuallibrary.com/doi/10.1680/jgeot.19.P.363</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1680/jgeot.19.P.363" target="_blank" >10.1680/jgeot.19.P.363</a>
Alternative languages
Result language
angličtina
Original language name
SANISAND-MSf: a sand plasticity model with memory surface and semifluidised state
Original language description
A new constitutive model for sand is formulated by incorporating two new constitutive ingredients into the platform of a reference critical state compatible bounding surface plasticity model with kinematic hardening, in order to address primarily the undrained cyclic response. The first ingredient is a memory surface for more precisely controlling stiffness affecting the plastic deviatoric and volumetric strains and ensuing excess pore pressure development in the pre-liquefaction stage. The second ingredient is the concept of a semifluidised state and the related formulation of stiffness and dilatancy degradation, aiming at modelling large shear strain development in the post-liquefaction stage. In parallel, a modified flow rule aimed at providing a better description of non-proportional monotonic and cyclic loading is introduced. With a single set of constants, for which a detailed calibration procedure is provided, this new model successfully simulates undrained cyclic torsional and triaxial tests with different cyclic stress ratios, separately for the pre- and post-liquefaction stages, as well as liquefaction strength curves based on ru and shear strain criteria for initial liquefaction. The successful reproduction of the sand element response under undrained cyclic shearing contributes to future applications in realistic and thorough seismic site response analysis.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/EF15_003%2F0000493" target="_blank" >EF15_003/0000493: Centre of Excellence for Nonlinear Dynamic Behaviour of Advanced Materials in Engineering</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geotechnique
ISSN
0016-8505
e-ISSN
1751-7656
Volume of the periodical
72
Issue of the periodical within the volume
3
Country of publishing house
GB - UNITED KINGDOM
Number of pages
20
Pages from-to
227-246
UT code for WoS article
000758924200004
EID of the result in the Scopus database
2-s2.0-85099717833