Numerical Predictions for Centrifuge Modelling of Submarine Slope Stability Using Advanced Constitutive Models: A Comparative Study of the DM04 and SANISAND-MS Models
Numerical Predictions for Centrifuge Modelling of Submarine Slope Stability Using Advanced Constitutive Models: A Comparative Study of the DM04 and SANISAND-MS Models
This study evaluates two constitutive models for sandDM04 and SANISAND-MSin simulating the response of a submerged slope subjected to seismic loading. SANISAND-MS includes a memory surface (MS), distinguishing it from DM04. Both models were calibrated using laboratory data from monotonic and cyclic triaxial tests on Ottawa F-65 sand, replicating conditions from LEAP-2017 liquefaction experiments. Model predictions, including spectral acceleration, excess pore pressure, and displacement, were compared against experimental data obtained in LEAP-2017. While both models showed reasonable accuracy, SANISAND-MS demonstrated limitations in capturing soil dilatancy during simulations.
J. Zhou; Merita Tafili; Nazanin Irani; Amin Barari; Lars Bo Ibsen
5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG2025)
3 - Constitutive models and soil behaviour modelling
https://doi.org/10.53243/ISFOG2025-84
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