CONTACT between SPH and DEM

[Cosmin]

Hello everyone,

Is there a card or a way to create a contact between DEM and SPH particles?

Thanks,

Cosmin

[James M. Kennedy]

Dear Cosmin,

 

https://technodocbox.com/3D_Graphics/98500773-Recent-and-future-developments-in-ls-dyna-in-discrete-element-dem-des.html

 

*DEFINE_SPH_DE_COUPLING_{OPTION}

Purpose: Define a penalty based contact. This option is to be used for the node to node contacts to couple the SPH solver and the discrete element sphere (DES) solver

 

https://www.youtube.com/watch?v=IVLxXYXR56E

 

Liu, C., Yu, Z., and Wang, Q., “A Unified SPH-DEM-FEM Approach for Modeling of Debris Flow Impacts on Protective Structures”, 16th International LS-DYNA Users Conference, Dearborn, Michigan, June, 2020.

 

https://www.dynalook.com/conferences/16th-international-ls-dyna-conference/nvh-simulation-t12-1/t12-1-e-simulation-028.pdf

 

Forsstrom, D., Jonsen, P., and Waara, P., “Prediction of wear in a dumper truck body by coupling SPH-FEM and DEM/FEM”.

 

https://www.ltu.se/cms_fs/1.109737!/file/presentation_klar.pdf

 

This paper presented two meshless methods: particle blast method (PBM) and discrete element method (DEM). The PBM was developed based on corpuscular method with intention to model the gaseous behavior of high velocity, high detonation products. Upon reformulating the particle interaction algorithm that is capable of modeling thermally non-equilibrium systems, blast loading simulations became possible. The DEM focuses on the modeling of the granular media:

 

Teng, H., "Coupling of Particle Blast Method (PBM) with Discrete Element Method (DEM) for Buried Mine Blast Simulation", 14th International LS-DYNA Users Conference, Dearborn, Michigan, June, 2016.

 

http://www.dynalook.com/14th-international-ls-dyna-conference/blast/coupling-of-particle-blast-method-pbm-with-discrete-element-method-for-buried-mine-blast-simulation

 

Wu, Z., Yu, F., Zhang, P., and Liu, X., “Micro-mechanism Study on Rock Breaking Behavior under Water jet Impact using Coupled SPH-FEM/DEM  Method with Voronoi Grains”, Engineering Analysis with Boundary Elements, Vol. 108, pp472-483, November, 2019.

 

https://www.sciencedirect.com/science/article/abs/pii/S0955799719305806

 

Sincerely,

James M. Kennedy

KBS2 Inc.

July 1, 2021

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