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- W4318563453 abstract "The material point method is a first-line choice in modeling large-deformation problems and has been widely utilized to investigate landslide dynamics. However, topographic complexity and computational demand have often hindered three-dimensional implementations. Here, we propose an algorithm for the virtualization of the substratum, in which the latter can be defined on a regular background grid as a non-zero kinematic boundary condition permitting frictional contact. In this setup, the computational power can be fully employed to model the moving mass. To evaluate the algorithm, we successfully simulated a rolling ball and flume experiments. Then, we took the Yanyuan landslide (27°29′25”N, 101°01′38″E) as an example to test the performance in a real case. By speeding up computation by ∼90 times, we argue that the proposed algorithm can promote accurate three-dimensional modeling of landslides and facilitate physically-based hazard assessments." @default.
- W4318563453 created "2023-01-31" @default.
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- W4318563453 date "2023-03-01" @default.
- W4318563453 modified "2023-10-16" @default.
- W4318563453 title "Substratum virtualization in three-dimensional landslide modeling with the material point method" @default.
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- W4318563453 doi "https://doi.org/10.1016/j.enggeo.2023.107026" @default.
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