TY  - GEN
KW  - Material Point Method; Fractional-step method; Large deformation; Stabilisation
TI  - Study of Landslides through a Stabilised Semi-Implicit Material Point Method
SP  - 149
UR  - http://dx.doi.org/10.62512/conf.ukacm2024.018
PB  - Durham University
A1  - Xie, Mian
A1  - Navas, Pedro
A1  - López-Querol, S
Y1  - 2024/04/25/
CY  - Durham, UK
N2  - In this research, a new semi-implicit two-phase double-point material point method is proposed, in which the soil and water phases are modelled using two distinct sets of material points, both being stabilised with a novel approach. The Nor-Sand constitutive model is implemented to simulate more realistic soil behaviour. Some landslide numerical examples are presented to investigate the performance of the proposed method and highlight the importance of using the double-point approach. The formulation with two sets of material points shows significantly different but more reliable results in the cases of landslides, compared with the conventional single-point approach. Furthermore, this research shows that the additional computational cost given by the additional water material points is acceptable. Therefore, it is recommended to use two sets of material points for some large deformation geotechnical problems.
EP  - 152
AV  - public
ID  - discovery10200016
N1  - Publisher Licence URL
http://creativecommons.org/licenses/by-nd/4.0/
ER  -