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Main Title: Particle-Based Numerical Simulation Study of Solid Particle Erosion of Ductile Materials Leading to an Erosion Model, Including the Particle Shape Effect
Author(s): Mohseni-Mofidi, Shoya
Drescher, Eric
Kruggel-Emden, Harald
Teschner, Matthias
Bierwisch, Claas
Type: Article
Abstract: Solid particle erosion inevitably occurs if a gas–solid or liquid–solid mixture is in contact with a surface, e.g., in pneumatic conveyors. Having a good understanding of this complex phenomenon enables one to reduce the maintenance costs in several industrial applications by designing components that have longer lifetimes. In this paper, we propose a methodology to numerically investigate erosion behavior of ductile materials. We employ smoothed particle hydrodynamics that can easily deal with large deformations and fractures as a truly meshless method. In addition, a new contact model was developed in order to robustly handle contacts around sharp corners of the solid particles. The numerical predictions of erosion are compared with experiments for stainless steel AISI 304, showing that we are able to properly predict the erosion behavior as a function of impact angle. We present a powerful tool to conveniently study the effect of important parameters, such as solid particle shapes, which are not simple to study in experiments. Using the methodology, we study the effect of a solid particle shape and conclude that, in addition to angularity, aspect ratio also plays an important role by increasing the probability of the solid particles to rotate after impact. Finally, we are able to extend a widely used erosion model by a term that considers a solid particle shape.
Subject(s): solid particle erosion
particle shape
contact models
smoothed particles hydrodynamics
Issue Date: 31-Dec-2021
Date Available: 6-Jan-2022
Language Code: en
DDC Class: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Journal Title: Materials
Publisher: MDPI
Volume: 15
Issue: 1
Article Number: 286
Publisher DOI: 10.3390/ma15010286
EISSN: 1996-1944
TU Affiliation(s): Fak. 3 Prozesswissenschaften » Inst. Prozess- und Verfahrenstechnik » FG Mechanische Verfahrenstechnik und Aufbereitung
Appears in Collections:Technische Universität Berlin » Publications

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