The dynamical loading on rock with different loading wave shapes conventional SHPB

Abstract

Since loading wave shapes are very important in the study of rock dynamical properties, a new procedure for obtaining a variety of wave shapes using equi-diameter impact hammer of conventional SHPB device is proposed based on theoretical analysis. Experiment shows that different loading wave shapes can be obtained through varying the radius at impact end of hammer. Experiment results are quite consistent with the theoretical analysis.

Keywords

dynamical loading / equi-diameter impacting bar / wave shape / Split Hopkinson Pressure Bar

References

[1] ZukasJ A, NicholasT, SwiftH F, et al.Impact dynamics, 1982, New York, John Wiley Sons: 285-307

[2] LiXibing, GuDeshengRock impact dynamics, 1994, Changsha, Central South University of Technology Press: 23-27(in Chinese)

[3] GoldsmithWImpact, 1960, London, Zdward Arnddltd: 273-273

[4] LiuDeshun, LiXibing, YangYiangbi. An approach to the control of oscilations in dynamic stress-strain curves. Trans of NF-soc, 1996, 6(2): 144-147