Applicability Evaluation of Similarity Principle in Discrete Element Analysis

Yun, Taeyoung; Park, Hee-Mun

doi:10.1007/978-981-10-1926-5_14

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…Thakur et al [19] investigated the scaling law for cohesionless and cohesive solids under quasi-static simulation of confined compression and unconfined compression to failure. The work of Yun et al [20] suggests the scaling rule for static liquid bridge model to reasonably simulate the fluid-like behaviour of particles.…”

Section: Modification Of Interaction Lawsmentioning

confidence: 99%

Comparison of Coarse Graining DEM Models Based on Exact Scaling Laws

Zhang¹,

Huang²,

Zhao³

2021

Computer Modeling in Engineering &Amp; Sciences

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The simulation of a large number of particles requires unacceptable computational time that is the most critical problem existing in the industrial application of the DEM. Coarse graining is a promising approach to facilitate the application of DEM to industrial problems. While the current coarse graining framework is often developed in an ad-hoc manner, leading to different formulations and different solution accuracy and efficiency. Therefore, in this paper, existing coarse graining techniques have been carefully analysed by the exact scaling law which can provide the theory basis for the upscaling method. A proper scaling rule for the size of particles and samples as well as interaction laws have been proposed. The scaling rule is applied to a series simulations of biaxial compression tests with different scale factors to investigate the precision of the coarse graining system. The error between the original system and the coarse system shows a growing tendency as the scale factor increases. It can be concluded that the precision of the coarse graining system is accepted when applying scaling rules based on the exact scaling laws.

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Section: Modification Of Interaction Lawsmentioning

confidence: 99%

Comparison of Coarse Graining DEM Models Based on Exact Scaling Laws

Zhang¹,

Huang²,

Zhao³

2021

Computer Modeling in Engineering &Amp; Sciences

View full text Add to dashboard Cite

show abstract

“…Thakur [229] investigated the scaling law for cohesionless and cohesive solids under quasi-static simulation of confined compression and unconfined compression to failure. The work of Yun [230] suggests the scaling rule for static liquid bridge model to reasonably simulate the fluid-like behaviour of particles.…”

Section: Modification Of Interaction Lawsmentioning

confidence: 99%

The developments of multi-level computational methodologies for discrete element modelling of granular materials

Zhao¹

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show abstract

Applicability Evaluation of Similarity Principle in Discrete Element Analysis

Cited by 2 publications

References 5 publications

Comparison of Coarse Graining DEM Models Based on Exact Scaling Laws

Comparison of Coarse Graining DEM Models Based on Exact Scaling Laws

The developments of multi-level computational methodologies for discrete element modelling of granular materials

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