An FEM-MPM Approach for Flowslide Runout Analysis
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This study presents a decoupled FEM-MPM framework, utilizing commonly available computational tools, for flowslide runout analysis. A case study of a flowslide in a tailings dam, triggered by static liquefaction, is used to demonstrate the methodology. An undrained perturbation is used to trigger liquefaction in the FEM model, allowing the model to determine the shape and size of the liquefied mass. This work builds upon the procedure established by Shuttle et al. (2021) for computational liquefaction, extending it with an MPM component. This approach improves the decoupled method implemented by Macedo et al. (2024) for TSF runout analysis.