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Publisher DOI: 10.3390/ma15238505
Title: Microscale modeling of frozen particle fluid systems with bonded-particle model method
Language: English
Authors: Tsz Tung, Chan 
Heinrich, Stefan 
Grabe, Jürgen 
Dosta, Maksym 
Issue Date: 29-Nov-2022
Publisher: Multidisciplinary Digital Publishing Institute
Source: Materials 15 (23): 8505 (2022)
Abstract (english): 
An inventive microscale simulation approach is applied to investigate the mechanics of frozen particle fluid systems (PFS). The simulation is based on the discrete element method (DEM) and bonded-particle model (BPM) approach. Discrete particles connected by solid bonds represent frozen agglomerates. Uniaxial compression experiments were performed to gather data for material modeling and further simulation model validation. Different typical mechanical behavior (brittle, ductile, dilatant) were reviewed regarding strain rates, saturation levels, and particle mechanical or surface properties. Among all these factors, strain rate significantly affects the mechanical behavior and properties of the agglomerates. A new solid bond model considering strain-dependent and time-dependent behavior is developed for describing the rheology of the frozen particle fluid systems. Without alternating Young’s modulus and Poisson’s ratio of the bond material, the developed solid model provides a suitable agreement with the experimental results regarding different strain rates.
DOI: 10.15480/882.4783
ISSN: 1996-1944
Journal: Materials 
Other Identifiers: doi: 10.3390/ma15238505
Institute: Feststoffverfahrenstechnik und Partikeltechnologie V-3 
Geotechnik und Baubetrieb B-5 
Document Type: Article
Project: Graduiertenkolleg 2462: Prozesse in natürlichen und technischen Partikel-Fluid-Systemen 
Open-Access-Publikationskosten / 2022-2024 / Technische Universität Hamburg (TUHH) 
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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