Dynamic tests on Bukit Timah granite using the split Hopkinson pressure bar

A novel experimental technique of split Hopkinson bar system is introduced to improve the incident wave against wave dispersion. By this method, the incident loading wave is of less oscillations and no rising time, which is very essential to obtain accurate data from dynamic tests on rock-like materials by using the Hopkinson bar test system. From the dynamic test results on Bukit Timah granite at high strain-rate up to 103/5, it is found that the dynamic mechanical property of granite is much sensitive to the loading conditions.