A coupled MPM-DEM method for modelling soil-rock mixtures

J Li, B Wang, D Wang, P Zhang, PJ Vardon - Computers and Geotechnics, 2023 - Elsevier
Aiming at modelling the mechanical behaviour of soil-rock mixtures accurately and
efficiently, a coupled MPM-DEM formulation combining the material point method (MPM) …

Elimination method of sliding blockage effect in discrete element simulation of rolling stone based on discrete fracture network and damping joint model

Y Zhou, HZ Liu, HQ Xie, L Zhuo, ML Xiao, JD He… - Computers and …, 2024 - Elsevier
The particle essence of the discrete element method could prevent the rock block from
sliding on the slope surface due to the stress concentration between the convex particles of …

Numerical assessments of the influences of soil–boulder mixed flow impact on downstream facilities

S Ren, P Zhang, T Man, SA Galindo-Torres - Computers and Geotechnics, 2023 - Elsevier
Rapid soil–boulder mixed flow commonly occurs in steep mountainous regions and has the
potential to damage critical infrastructures. Baffles are typically used as flow-impeding …

GeoTaichi: A Taichi-powered high-performance numerical simulator for multiscale geophysical problems

YH Shi, N Guo, ZX Yang - Computer Physics Communications, 2024 - Elsevier
This study introduces GeoTaichi, an open-source high-performance numerical simulator
designed for addressing multiscale geophysical problems. By leveraging the power of the …

A coupled metaball discrete element material point method for fluid–particle interactions with free surface flows and irregular shape particles

S Ren, P Zhang, Y Zhao, X Tian… - Computer Methods in …, 2023 - Elsevier
Interactions between fluids and particles are common in both natural and industrial fields.
However, modeling these intricate interactions presents considerable challenges, especially …

基于t-SNE-AMARS-MPM的空间变异性边坡可靠度分析及大变形破坏模式研究

彭宗桓, 盛建龙, 叶祖洋, 李硕 - 力学学报, 2024 - lxxb.cstam.org.cn
在考虑参数空间变异性对大变形边坡可靠度评估的影响, 特别是在小失效概率的情况下,
传统分析方法常因耗时冗长或难以评估大变形失稳破坏而受限. 针对这一问题, 提出一种结合t …

An MPs-Mesh scheme for modeling soil impacting with rigid boundaries

J Li, B Wang, D Wang, H Chen - Acta Geotechnica, 2024 - Springer
A particle-plane contact model from the discrete element method has been incorporated into
the material point method (MPM) to form an MPs-Mesh scheme for modeling the interactions …

RELIABILITY ANALYSIS AND INVESTIGATION OF LARGE DEFORMATION FAILURE MODES IN SPATIALLY VARIABLE SLOPE USING t-SNE-AMARS-MPM

P Zonghuan, S Jianlong, Y Zuyang… - Chinese Journal of …, 2024 - lxxb.cstam.org.cn
The reliability analysis of slopes is often hindered by time-consuming or challenging
evaluations of large deformation, particularly when dealing with the intricate effects of spatial …

[PDF][PDF] The material point method

CJ Coetzee - … rapport, universiteit van Stellenbosch.[CUR 113 …, 2005 - researchgate.net
1 BACKGROUND The material point method (MPM) was first introduced by Sulsky and
Schreyer (1993 b) and Sulsky et al.(1994), and over the last 28 years new developments …

地山補強材で壁体下部を補強したもたれ壁の地震時挙動に関する一考察

阿部慶太, 仙頭紀明, 中島進 - 土木学会論文集, 2024 - jstage.jst.go.jp
抄録 本研究は, 地山補強材で壁体下部を補強したもたれ壁を対象とし, 地震時における挙動
について検討し考察したものである. はじめに, 既往の小型模型実験で元となったもたれ壁に対し …