Dynamic Spar Elements and Discrete Element Methods in Two Dimensions for the Modeling of Soil-Inclusion Problems
Publication: Journal of Engineering Mechanics
Volume 131, Issue 7
Abstract
Discrete element methods (DEMs) provide new numerical means to study the behavior of soil-inclusion systems. In some cases, however, the classic DEM fails to model specific aspects of the inclusions. That is why a model based on spar elements is introduced, designed specifically for inclusions. In this model, the movement of the inclusion is considered as a dynamic process and is computed step by step in the same way as in the DEM. The model can be coupled with a DEM code, thus enabling one to simulate the interaction between an inclusion and a disk assembly. Contact laws at the contacts between disks and spar elements describe the interface constitutive behavior. Finally, the results obtained by simulating a geosynthetic anchorage in two different ways are reported. In the first case the inclusion is represented by disks, while in the last case it is represented by spar elements. The comparison shows that spar elements are much more versatile and can simplify the calibration of the discrete models used to simulate soil-inclusion systems.
Get full access to this article
View all available purchase options and get full access to this article.
References
Chareyre, B., Briancon, L., and Villard, P. (2002). “Theoretical versus experimental modeling of the anchorage capacity of geotextiles in trenches.” Geosynthet. Int., 9(2), 97–123.
Chareyre, B., and Villard, P. (2002). “Discrete element modeling of curved geosynthetic anchorages with known macro-properties.” Proc., First Int. PFC Symposium, Gelsenkirchen, Germany, 197–203.
Cundall, P. A. (1987). “Distinct element model of rock and soil structure.” Analytical and computational methods in engineering rock mechanics, E. T. Brown, ed., Allen & Unwin, London, 129–163.
Cundall, P. A., and Strack, O. D. L. (1979). “A discrete numerical model for granular assemblies.” Geotechnique, 29(1), 47–65.
Hart, R., Cundall, P. A., and Lemos, J. (1988). “Formulation of a three-dimensional distinct element model. II: Mechanical calculations for motion and interaction of a system composed of many polyhedral blocks.” Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 25(3), 117–125.
Hentz, S., Daudeville, L., and Donze, F. (2003). “Modeling of reinforced concrete structures subjected to impacts by the discrete element method.” Proc., 16th Engineering Mechanics Conf., EM2003, ASCE, Reston, Va.
Mohammadi, S., Owen, D. R. J., and Peric, D. (1998). “A combined finite/discrete element algorithm for delamination analysis of composites.” Finite Elem. Anal. Design, 28(4), 321–336.
PFC2D user manual; release 1.10. (1997). Itasca Consulting Group, Inc., Minneapolis.
Villard, P., Kotake, N., and Otani, J. (2002). “Modeling of reinforced soil in finite element analysis.” Keynote lecture, Proc., 7th Int. Conf. on Geosynthetics, J. P. Gourc and P. Delmas, eds., Nice, France, 39–95.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 131 • Issue 7 • July 2005
Pages: 689 - 698
Copyright
© 2005 ASCE.
History
Received: Apr 30, 2003
Accepted: Sep 16, 2004
Published online: Jul 1, 2005
Published in print: Jul 2005
Notes
Note. Associate Editor: Jin Y. Ooi
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.