Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 105708 |
| Fachzeitschrift | Computers and geotechnics |
| Jahrgang | 163 |
| Frühes Online-Datum | 14 Aug. 2023 |
| Publikationsstatus | Veröffentlicht - Nov. 2023 |
Abstract
The material point method (MPM) is often used to simulate soils that interact with (nearly) rigid objects, such as structures, machines, or rocks. Yet MPM simulations of such problems are quite challenging when the objects have complex shapes. In this paper, we propose an efficient approach for incorporating geometrically complex rigid objects into MPM modeling. The proposed approach leverages the level set method, which can efficiently delineate arbitrary surface geometry, to represent the boundary of a discrete object. For coupling the level set object with the MPM domain, a robust algorithm is developed on the basis of contact mechanics. Through numerical examples of varied complexity, we verify the proposed approach and demonstrate its ability to efficiently simulate challenging problems wherein soils interact with complex rigid objects such as debris-resisting baffles, a vehicle wheel, and basal terrain.
ASJC Scopus Sachgebiete
- Erdkunde und Planetologie (insg.)
- Geotechnik und Ingenieurgeologie
- Informatik (insg.)
- Angewandte Informatik
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in: Computers and geotechnics, Jahrgang 163, 105708, 11.2023.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Coupled material point and level set methods for simulating soils interacting with rigid objects with complex geometry
AU - Zhao, Yidong
AU - Choo, Jinhyun
AU - Jiang, Yupeng
AU - Li, Liuchi
N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (Nos. 2022R1F1A1065418 and RS-2023-00209799 ).
PY - 2023/11
Y1 - 2023/11
N2 - The material point method (MPM) is often used to simulate soils that interact with (nearly) rigid objects, such as structures, machines, or rocks. Yet MPM simulations of such problems are quite challenging when the objects have complex shapes. In this paper, we propose an efficient approach for incorporating geometrically complex rigid objects into MPM modeling. The proposed approach leverages the level set method, which can efficiently delineate arbitrary surface geometry, to represent the boundary of a discrete object. For coupling the level set object with the MPM domain, a robust algorithm is developed on the basis of contact mechanics. Through numerical examples of varied complexity, we verify the proposed approach and demonstrate its ability to efficiently simulate challenging problems wherein soils interact with complex rigid objects such as debris-resisting baffles, a vehicle wheel, and basal terrain.
AB - The material point method (MPM) is often used to simulate soils that interact with (nearly) rigid objects, such as structures, machines, or rocks. Yet MPM simulations of such problems are quite challenging when the objects have complex shapes. In this paper, we propose an efficient approach for incorporating geometrically complex rigid objects into MPM modeling. The proposed approach leverages the level set method, which can efficiently delineate arbitrary surface geometry, to represent the boundary of a discrete object. For coupling the level set object with the MPM domain, a robust algorithm is developed on the basis of contact mechanics. Through numerical examples of varied complexity, we verify the proposed approach and demonstrate its ability to efficiently simulate challenging problems wherein soils interact with complex rigid objects such as debris-resisting baffles, a vehicle wheel, and basal terrain.
KW - Large deformation
KW - Level set method
KW - Material point method
KW - Numerical simulation
KW - Soil–structure interactions
KW - Terramechanics
UR - http://www.scopus.com/inward/record.url?scp=85167802392&partnerID=8YFLogxK
U2 - 10.1016/j.compgeo.2023.105708
DO - 10.1016/j.compgeo.2023.105708
M3 - Article
AN - SCOPUS:85167802392
VL - 163
JO - Computers and geotechnics
JF - Computers and geotechnics
SN - 0266-352X
M1 - 105708
ER -