Paper Info
Title
Physically based modeling and animation of landslides with MPM.
Abstract
Landslide is a disaster which may cause huge losses of human life and block the traffic on hilly area. In this paper, we present a new physically based model to simulate the dynamic flow of landslides, under a modified MPM (material point method) framework. To realistically simulate the characteristics of fracture and flow of soil medium in landslide, we introduce the modified Cambridge clay model (MCCM) from soil dynamics into the yield surface criterion to model the dynamic process of landslides. The interaction between soil and rock in the landslide is simulated by a level-set-based two-way fluid–solid coupling algorithm. Meanwhile, we propose a GPU-based optimization to calculate the signed distance function in level set to improve the efficiency of collision detection. We also simplify the hardening and softening parameter calculation algorithm of MCCM to reduce the calculation involved in landslide simulation. By choosing different values of the material yield surface parameters, various kinds of landslide disaster scenes with different cover area are successfully generated, including rocks rolling from hill, soil and rock collapsing, landslide flowing, and covering the road and cars. Experimental results demonstrate the potential of our method.
Year
DOI
Venue
2019
10.1007/s00371-019-01709-3
The Visual Computer
Keywords
Field
DocType
Natural phenomena simulation, Landslide, Modified material point method, Soil dynamics, Two-way fluid–solid coupling
Geotechnical engineering,Mathematical optimization,Collision detection,Computer science,Signed distance function,Material point method,Flow (psychology),Level set,Yield surface,Landslide,Animation
Journal
Volume
Issue
ISSN
35
9
0178-2789
Citations 
PageRank 
References 
2
0.35
0
Authors
6
Name
Order
Citations
PageRank
Jianwang Zhao120.35
Yi Chen220.35
Haitong Zhang320.35
Hao Xia420.35
Zhangye Wang5839.64
Qun-Sheng Peng6887.57