Discrete element method: Difference between revisions

Revision as of 07:38, 28 April 2024

Revision as of 09:00, 15 April 2025

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* DEM can be used to simulate a wide variety of granular flow and rock mechanics situations. Several research groups have independently developed simulation software that agrees well with experimental findings in a wide range of engineering applications, including adhesive powders, granular flow, and jointed rock masses.

* DEM allows a more detailed study of the micro-dynamics of powder flows than is often possible using physical experiments. For example, the force networks formed in a granular media can be visualized using DEM. Such measurements are nearly impossible in experiments with small and many particles.

* The general characteristics of force-transmitting contacts in granular assemblies under external loading environments agree with experimental studies using Photo-stress analysis (PSA).<ref>{{cite journal |last1=S.J. Antony |first1=|title=Link between single-particle properties and macroscopic properties in particulate assemblies: role of structures within structures |journal=Philosophical Transactions of the Royal Society of London, Series: A |date=2007 |volume=356 |pages=2879–2891}}</ref><ref>{{cite journal |last1=S. J. Antony, D. Chapman, J. Sujatha and T. Barakat |title=Interplay between the inclusions of different sizes and their proximity to the wall boundaries on the nature of their stress distribution within the inclusions inside particulate packing |journal=Powder Technology |date=2015 |volume=286 |pages=286, 98–106|doi=10.1016/j.powtec.2015.08.007 |url=https://eprints.whiterose.ac.uk/89428/1/Manuscript-FinalV.pdf }}</ref>

Disadvantages

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'''Proceedings'''

* {{cite journal |last1=Shi |first1=Gen‐HuaGen-Hua |title=Discontinuous Deformation Analysis: A New Numerical Model For The Statics And Dynamics of Deformable Block Structures |journal=Engineering Computations |date=February 1992 |volume=9 |issue=2 |pages=157–168 |doi=10.1108/eb023855 }}

* {{cite journal|last1=Williams|first1=John R.|last2=Pentland|first2=Alex P.|title=Superquadrics and Modal Dynamics For Discrete Elements in Interactive Design|journal=Engineering Computations|date=February 1992|volume=9|issue=2|pages=115–127|doi=10.1108/eb023852}}

* {{cite book |editor1-last=Williams |editor1-first=John R. |editor2-last=Mustoe |editor2-first=Graham G. W. |title=Proceedings of the 2nd International Conference on Discrete Element Methods (DEM) |date=1993 |publisher=IESL Publications |___location=Cambridge, MA |isbn=978-0-918062-88-8 |edition=2nd}}