Browse > Article

[ $PFC^{3D}$ ] Modeling of Stress Wave Propagation Using The Hopkinson's Effect  

Choi Byung-Hee (한국지질자원연구원)
Ryu Chang-ha (한국지질자원연구원)
Publication Information
Explosives and Blasting / v.23, no.3, 2005 , pp. 27-42 More about this Journal
Abstract
An explosion modeling technique was developed by using the spherical discrete element code, $PFC^{3D}$, which can be used to model the dynamic stress wave propagation phenomenon. The modeling technique is simply based on an idea that the explosion pressure should be applied to a $PFC^{3D}$ particle assembly not in the form of an external force (body force), but in the form of a contact force (surface force). The stress wave propagation modeling was conducted by simulating the experimental approach based on the Hopkinson's effect combined with the spatting phenomenon that had previously been developed to determine the dynamic tensile strength of Inada granite. As a result, the stress wave velocity obtained by the proposed modeling technique was 4167 m/s, which is merely $3\%$ lower than the actual wave velocity of 4300 m/s for an Inada granite.
Keywords
explosion modeling PFC; stress wave; Hopkinson's effect;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Preece, D. S., B. J. Thorne, M. R. Baer and J. W. Swegle, 1994, Computer Simulation of Rock Blasting: A Summary of Work from 1987 through 1993, Sandia National Laboratories, Report No. SAND92-1027
2 Brinkmann, J. R, 1987, Separating Shock Wave and Gas Expansion Breakage Mechanisms, Proc. 2nd Int. Symp. on Rock Fragmentation by Blasting, W. L. Fourney and R D. Dick, Eds., Bethel, Connecticut, Society for Experimental Mechanics, pp. 6-15
3 Schatz, J. F., B. J. Zeigler, R. A. Bellman, J. M. Hanson, M. Christianson and R. D. Hart, 1987, Prediction and Interpretation of Multiple Radial Fracture Stimulations, Science Applications International Corporation (SAIC), Report to Gas Research Inst. (GRI), SAIC Report No. SAIC087/1056, GRI Report No. GRI-87/0199
4 Cundall, P. A., and O. D. L. Strack, 1979, A Discrete Numerical Model for Granular Assemblies, Geotechnique, Vol. 29, pp. 47-65   DOI   ScienceOn
5 Munjiza, A, D. R. J. Owen, N. Bicanic and J. R. Owen, 1994, On a Rational Approach to Rock Blasting, Computer Methods and Advances in Geomechanics, pp. 871-876, H. J. Siriwardane and M. M. Zaman, Eds., Rotterdam, Balkema
6 Cho, S., 2003, Dynamic Fracture Process Analysis of Rock and Its Application to Fragmentation Control in Blasting, Ph.D. Thesis, Graduate School of Engineering, Hokkaido Univ., pp. 39-76
7 Fourney, W. L., 1993, Mechanism of Rock Fragmentation by Blasting, Comprehensive Rock Engineering, Principles, Practice and Projects, J. A Hudson, Ed. Oxford, Pergamon Press, pp. 39-69
8 Brinkmann, J. R., 1990, An Experimental Study of the Effects of Shock and Gas Penetration in Blasting, Proc. 3rd Int. Symp. on Rock Fragmentation by Blasting
9 Potyondy, D. O., and P. A Cundall, 1996, Modeling of Shock- and Gas-Driven Fractures Induced by a Blast Using Bonded Assemblies of Spherical Particles, Rock Fragmentation by Blasting, Balkema, Rotterdam, pp. 55-61
10 Sarracino. R. S., and J. R. Brinkmann, 1994, Modeling of Blasthole Liner Experiments, Computer Methods and Advances in Geomechanics, H. J. Siriwardane and M. M. Zaman, Eds., Rotterdam, Balkema, pp. 871-876
11 Jung, W. J., Y. Ogata, Y. Wada, M. Seto, K. Katsuyama and T. Ogawa, 2001, Effects of Water Saturation and Strain Rate on the Tensile Strength of Rocks under Dynamic Load, Journal of Geotechnical Engineering, JSCE, No. 673, III-54, pp. 53-59