Numerical modelling of heterogeneous rock breakage behaviour based on texture images

Wang, Yicai (2015) Numerical modelling of heterogeneous rock breakage behaviour based on texture images. Minerals Engineering, 74 130-141. doi:10.1016/j.mineng.2014.12.030


Author Wang, Yicai
Title Numerical modelling of heterogeneous rock breakage behaviour based on texture images
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
1872-9444
Publication date 2015-04-01
Sub-type Article (original research)
DOI 10.1016/j.mineng.2014.12.030
Open Access Status Not yet assessed
Volume 74
Start page 130
End page 141
Total pages 12
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Language eng
Subject 2207 Control and Systems Engineering
1600 Chemistry
1909 Geotechnical Engineering and Engineering Geology
2210 Mechanical Engineering
Abstract The main objective of this study is to understand rock breakage behaviours which may provide a means to improve fragmentation efficiency. In this study, numerical modelling technology and image analysis are used to investigate the behaviour of actual rocks in the breakage process. A texture-based finite element method (FEM) modelling technique has been developed to present a realistic modelling method for characterizing heterogeneous rock breakage behaviour according to its actual microstructure using integrated microscopic observation, image analysis and numerical modelling. Understanding the role of texture and crack propagation can provide fundamental knowledge for predicting and improving energy-efficiency of comminution. A number of samples were analysed with the aim of providing key information on mineralogical and textural controls which primarily influence preferential liberation. The results in this study demonstrated that mineral distributions and minerals with lower tensile strength play a very important role in the breakage process.
Keyword Heterogeneous
Mineral processing
Numerical modelling
Rock texture
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
Official 2016 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 7 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 8 times in Scopus Article | Citations
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Created: Thu, 12 Feb 2015, 18:58:44 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre