%0 Generic
%A Xie, Mian
%A Navas, Pedro
%A Lopez-Querol, Susana
%D 2024
%E Viggiani, Giulia
%E Madabhushi, Gopal
%F discovery:10200017
%I University of Cambridge
%P 117-118
%T Numerical Simulation of Landslides through a Stabilised Material Point Method with SANISAND Model
%U https://discovery.ucl.ac.uk/id/eprint/10200017/
%X This research presents a new semi-implicit two-phase double-point MPM formulation for modelling  large-deformation geotechnical problems such as landslides. The proposed method addresses instabilities in traditional single-point MPM by using distinct sets of material points to model the soil and  water phases separately (double-point approach). A modified F-bar technique is derived to stabilise  advanced soil constitutive models such as SANISAND, allowing for a more realistic simulation of soil  behaviour. The water phase is solved implicitly, enabling significantly longer time steps compared to  fully explicit MPM approaches. Landslide examples using the SANISAND constitutive model are presented in this paper, demonstrating the performance of the modified F-bar method and highlighting  the importance of the double-point approach.
%Z https://creativecommons.org/licenses/by/4.0/