Prediction/Verification of Particle Motion in One Dimension with the Discrete-Element Method
Although the availability of discrete-element method (DEM) codes has improved, a need still exists to solve simple verification problems to obtain an understanding of these codes. Different DEM codes may have subtle differences in the manner in which the method is implemented, and the significance of these differences may be problem dependent. This paper investigates a series of simple, 1- and 2-particle contact problems. These problems, which employ various types of damping, are shown to be equivalent to classical 1-D vibration problems. The solutions are discussed in the context of the DEM, and results from the DEM are shown to compare very well with the classical solutions. It is demonstrated that results from a well-known commercial 2-D code (PFC2D) and the open source 3-D code (YADE) yield identical solutions to these problems provided the problem solution process is manipulated properly. A discussion of the differences in how gravity and damping are implemented may be of interest to users of PFC2D.
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/15323641
-
Supplemental Notes:
- Abstract reprinted with permission from ASCE
-
Authors:
- Chen, Feng
- Drumm, Eric C
- Gulochon, Georges
- Publication Date: 2007-9
Language
- English
Media Info
- Media Type: Print
- Features: Appendices; Figures; References; Tables;
- Pagination: pp 344-352
-
Serial:
- International Journal of Geomechanics
- Volume: 7
- Issue Number: 5
- Publisher: American Society of Civil Engineers
- ISSN: 1532-3641
- EISSN: 1943-5622
- Serial URL: http://ascelibrary.org/journal/ijgnai
Subject/Index Terms
- TRT Terms: Discrete element method; Grain size; Mathematical methods; Particles; Soil particles; Soil science
- Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;
Filing Info
- Accession Number: 01083009
- Record Type: Publication
- Files: TRIS
- Created Date: Dec 27 2007 8:07AM