Article
Engineering, Marine
Anis Hasanpour, Denis Istrati, Ian Buckle
Summary: Field surveys have shown the catastrophic effects of large waterborne debris on coastal infrastructure during recent tsunami events. This study introduces a coupled SPH-FEM modeling approach to simulate these effects, validated through large-scale experiments. The study also suggests the potential for non-linear force-velocity trends due to debris pitching, highlighting the need for further investigation with three-dimensional models.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
S. O. Sperling, J. P. M. Hoefnagels, K. van den Broek, M. G. D. Geers
Summary: This paper presents an alternative particle method called the Continuum Bond Method (CBM) that combines the advantages of conventional continuum methods and particle methods. CBM can accurately model complex fracture behavior while maintaining constitutive flexibility.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2022)
Article
Computer Science, Interdisciplinary Applications
Yu Zhang, Jianwei Li, Yifan Xu, Huaxiang Zhu, Zaobao Liu
Summary: A GPU-based coupled DEM-SPH model is proposed and adopted to simulate dike failure problems. The model is validated through numerical tests and shows good agreement with experimental results. The effects of overtopping and seepage-induced dike failures are studied, as well as the impact of sediment diameter on dike deformation and the influence of bottom drainage length on seepage development inside the dike.
COMPUTERS & FLUIDS
(2023)
Article
Engineering, Multidisciplinary
Abbas Khayyer, Yuma Shimizu, Hitoshi Gotoh, Ken Nagashima
Summary: This paper presents a fully Lagrangian meshfree projection-based hydroelastic FSI solver within the SPH framework for simulating incompressible fluid flows interacting with laminated composite elastic structures. The solver utilizes an enhanced version of Incompressible SPH for fluids and a structure model in the context of Hamiltonian SPH for laminated composite elastic structures. The solver demonstrates superior performance without artificial stabilizers or smoothing of material properties at material interfaces, and its potential applicability for practical engineering applications is highlighted through challenging simulations.
APPLIED MATHEMATICAL MODELLING
(2021)
Article
Engineering, Marine
JiaZhao Sun, Li Zou, Nicolin Govender, Ivan Martinez-Estevez, Alejandro J. C. Crespo, Zhe Sun, Jose M. Dominguez
Summary: This study proposes a three-dimensional resolved numerical framework for analyzing complex shape polyhedron-fluid interaction. It accurately simulates the dynamic behavior of hybrid fluid-particle systems using the weakly compressible smoothed particle hydrodynamics (SPH) and discrete element method (DEM). The high-fidelity modeling and efficient coupling scheme demonstrate the reliability and applicability of the SPH-DEM solver in various engineering problems.
Article
Computer Science, Interdisciplinary Applications
Xuehao Yao, Dan Huang
Summary: A simple and accurate coupled peridynamics and smoothed particle hydrodynamics strategy is proposed for simulating fluid-structure interaction problems with large deformation and fracturing. The approach utilizes virtual particles and repulsive forces to ensure full kernel support of fluid particles and prevent penetration in the fluid-structure interfacial region. Validation studies show that the proposed method is capable of accurately modeling complex fluid-induced solid breaking problems.
COMPUTERS & STRUCTURES
(2022)
Article
Mathematics, Interdisciplinary Applications
Xuehao Yao, Xuming Zhang, Dan Huang
Summary: An improved smooth particle hydrodynamics-finite element method (SPH-FEM) coupling approach is proposed to investigate fluid-structure interaction (FSI) problems. The proposed approach utilizes an interface particle coupling strategy and a density correction method to accurately simulate the interactions between fluid and structure. The accuracy and efficiency of the approach are verified through analysis of experimental and previously published results, and the approach is further applied to study fluid sloshing.
COMPUTATIONAL PARTICLE MECHANICS
(2022)
Article
Materials Science, Multidisciplinary
Shu-xian Yu, Qun-bo Fan, Xing-wang Cheng, Yan Tan, Yu Gao
Summary: In this study, the process of a Zr58Nb3Cu12Ni12Al15 bulk metallic glass fragment penetrating LY12 separated plates is investigated experimentally and computationally. The mechanical properties of the Zr-based BMG are reproduced using the JH-2 constitutive model. The FEM/SPH coupling method is introduced to simulate the impacting and fragmentation process of the fragment and the characteristics of the debris cloud. The simulation results are in good agreement with the experimental observations. The study provides important insights into the damage caused by debris fragments to the target.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Chemical
Nhu H. T. Nguyen, Thanh Trung Nguyen, Quoc T. Phan
Summary: This study investigates the dynamics and runout of particle-water mixture column collapse using a modelling method coupling DEM and VOF. The presence of water reduces dissipative interactions between particles, increasing the mobility of mixture flows, while the impact of particle density on flow becomes more significant.
Article
Geosciences, Multidisciplinary
Bailong Li, Youliang Fang, Yanying Li, Chun Zhu
Summary: In this study, the dynamics of debris flow with consideration of material source erosion-entrainment process is analyzed using a coupled SPH-DEM-FEM method. A complex coupled dynamic model of debris flow, erodible material source, and a rigid barrier is established and verified against laboratory tests. The strain softening model is used to simulate the transition from solid to liquid state of the erodible material source. The results show significant differences in debris fluid volume, impact force, and dynamic response of the rigid barrier when considering source erosion-entrainment compared to the original model. The calculated results help in clarifying the influence of erosion-entrainment, modifying the calculation of debris flow impact force, and optimizing the design of rigid barriers.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Engineering, Aerospace
R. M. Faergestad, J. K. Holmen, T. Berstad, T. Cardone, K. A. Ford, T. Borvik
Summary: Hypervelocity impacts (HVIs) caused by orbital debris pose an increasing threat to spacecraft in low Earth orbit, highlighting the need for effective shielding. This study used a coupled finite element-discrete element method (FEM/DEM) to model HVIs on debris shields. Experimental data was used to validate the results, and simulations were conducted to study the formation of debris clouds and investigate key model parameters.
Article
Engineering, Geological
Yu-xiang Hu, Yong-guo Zhu, Hai-bo Li, Cong-jiang Li, Jia-wen Zhou
Summary: By using the coupled DEM-SPH method, the entire process of debris avalanches intruding into reservoirs in mountainous regions can be accurately predicted, with a focus on wave generation and propagation. This provides valuable insights for hazard prevention related to reservoir landslides.
Article
Engineering, Marine
Ting Long, Can Huang, Dean Hu, Moubin Liu
Summary: The paper proposes a coupling method of ES-FEM and SPH for solving FSI problems, with correction algorithms integrated into the SPH method to improve computational stability and accuracy. The virtual particle coupling scheme was used for implementing the coupling of ES-FEM and SPH, which is found to be effective in simulating FSI problems.
Article
Engineering, Geological
Hao Xiong, Mengjie Hao, Debo Zhao, Yuanyi Qiu, Xiangsheng Chen
Summary: This article investigates the dynamic interaction between debris flows and slit-type barriers using a coupled SPH-DEM method, providing insights into the optimal design of barriers.
Article
Mechanics
Satori Tsuzuki
Summary: The study demonstrates the simulation of liquid helium-4 rotating in a cylinder using the two-fluid model solved through smoothed-particle hydrodynamics. The improved SPH scheme explicitly incorporates vortex dynamics to reproduce vortex lattices that were not previously possible. By introducing interaction forces among vortices and the Magnus force, the model successfully reproduces the spinning of vortices and rigid-body rotations, showing agreement with Feynman's rule after optimization.