This study aims to explore dynamic behaviours of fracturing and damage evolution of rock
materials at the grain scale. A grain-based discrete element method (GB-DEM) is proposed …

Rocks in nature contain a large number of defects and exhibit strong heterogeneity on grain
scale. In this study, a novel three-dimensional multiscale method is proposed to investigate …

Abstract A 304L-VAR stainless steel is mechanically characterized in tension over a full
range of strain rates from low, intermediate, to high using a variety of apparatuses. While low …

The split Hopkinson pressure bar (SHPB) test is the most commonly used method for testing
the dynamic mechanical behavior of materials at high strain rates. In this paper, for the …

Results of numerical analysis of the influence of pulse shaper geometry on wave signals in
the split Hopkinson pressure bar experiment are presented. Five pulse shapers, ie square …

Cylindrical dog-bone (or dumbbell) shaped samples have become a common design for
dynamic tensile tests of ductile materials with a Kolsky tension bar. When a direct …

The problem of specimen geometry imperfections for ductile materials in the split Hopkinson
pressure bar (SHPB) experiments is presented in this paper. Impact of five types of …

To investigate the dynamic compression behaviors of fracturing and damage evolution of
ZrB2–SiC ceramic, this paper proposes a discrete element method to carry out the dynamic …

The problem of ensuring both nominal and true constant strain rate in the split Hopkinson
pressure bar experiment was considered through the application of the conical striker for …

Kolsky tension bar experiments were improved for dynamic tensile stress–strain
measurements with higher fidelity and minimal uncertainties. The difficulties associated with …