Abstract
A new method based on the principle of minimum potential energy is presented, aiming to overcome some weakness of the present discrete element method (DEM). Our primary research is to put forward the DEM with a tight theory base and a fit technique for treating continuum dynamic problems. By using this method, we can not only extend the existing seven-disc model, but also establish a new nine-disc model in a general way. Moreover, the equivalences of two kinds of models have been verified. In addition, three numerical examples of stress wave propagation problems are given in order to validate accuracy and efficiency of the present DEM models and their algorithms. Finally, the dynamic stress concentration problem of a square plate with a circular hole is analyzed.
Similar content being viewed by others
References
Liu K., Gao L., TANIMURA S. (2004). Application of discrete element method in impact problems. JSME Int J Ser A 47:138–145
Cundall P.A. (1971). A computer model for simulating progressive large scale movement in block rock system. Symp ISRM Proc 2:129–136
Herrmann H.J., Luding S. (1998). Modeling granular media on the computer. Continuum Mech Thermodyn 10:189–231
Tsuji Y. (2000). Activities in discrete particle simulation in Japan. Powder Technol 113:278–286
Liu K., Gao L. (2003). A review on the discrete element method (in Chinese). Adv mech 33:483–49
Onate E., Rojek J. (2004). Combination of discrete element and finite element methods for dynamic analysis of geomechanics problems. Comput Methods Appl Mech Eng 193:3087–3128
Mohammadi S., Owen D.R.J., Peric D. (1998). A combined finite/discrete element algorithm for delamination analysis of composites. Fin Elem Anal Des 28:321–336
Sawamoto Y., Tsubota H., Kasai Y., Koshika N., Morikawa H. (1998). Analytical studies on local damage to reinforced concrete structures under impact loading by discrete element method. Nucl Eng Des 179:157–177
Liu K., Gao L. (2003). The application of discrete element method in solving three dimensional impact dynamics problems. Acta Mech Sol 16:256–261
Liu, K., Li, X.: Numerical simulation of stress wave propagation in an orthotropic plate. In: Proceedings of the 2nd international symposium on impact engineering, pp. 19–24 (1996)
Berezovski, A., Maugin, G.A.: Simulation of thermoelastic wave propagation by means of a composite wave-propagation algorithm. J Comput Phys 168, 249–264 (2001)
LeVeque R.J. (1997). Wave Propagation algorithms for multiple hyperbolic systems. J Comput Phys 131:327–353
Berezovski A., Engelbrecht J., Maugin G.A. (2003). Numerical simulation of two-dimensional wave propagation in functionally graded materials. Eur J Mech A Solids 22:257–265
Author information
Authors and Affiliations
Corresponding author
Additional information
This work was supported by Nation Natural Science Foundation of China (nos. 10232040 and 10572002).
Rights and permissions
About this article
Cite this article
Liu, K., Liu, W. Application of Discrete Element Method for Continuum Dynamic Problems. Arch Appl Mech 76, 229–243 (2006). https://doi.org/10.1007/s00419-006-0018-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00419-006-0018-8