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Publisher DOI: 10.1007/s40571-020-00348-z
Title: Linearization-based methods for the calibration of bonded-particle models
Language: English
Authors: Jarolin, Kolja  
Dosta, Maksym 
Keywords: Bonded-particle model; Calibration; Direct stiffness method; Discrete element method
Issue Date: May-2021
Publisher: Springer
Source: Computational Particle Mechanics 8 (3): 511-523 (2021-05)
Abstract (english): 
In the work at hand, two methods for the calibration of the elastic material parameters of bonded-particle models (BPMs) are proposed. These methods are based on concepts of classical mechanics and enable a faster calibration compared to the conventional trial and error strategy. Moreover, they can be used to counter-check the consistency of the BPM. In the first method, the mathematical model is linearized and solved in a classical matrix-vector formulation similar to a finite element scheme. Further linearization in the second approach enables the direct calculation of the elastic stiffness tensor, reducing computational costs massively. To analyze the capabilities and limitations of both methods, they have been applied in three different case studies. Obtained results have shown that the new strategy allows us to significantly reduce the calculation time.
DOI: 10.15480/882.3513
ISSN: 2196-4378
Journal: Computational particle mechanics 
Institute: Feststoffverfahrenstechnik und Partikeltechnologie V-3 
Mehrskalensimulation von Feststoffsystemen V-EXK1 
Document Type: Article
Project: Mulitiskalen Simulation zur Analyse und Optimierung der Chemical-Looping Vergasung 
Projekt DEAL 
Funded by: Deutsche Forschungsgemeinschaft (DFG) 
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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