Heterogeneity in deformation of granite under dynamic combined compression/shear loading

By adding two blocks with symmetrical oblique surfaces, the dynamic behaviors of granite under combined compression/shear loading are investigated by the modified split Hopkins on pressure bar device (SHPB). High speed camera is employed for image acquisition of the specimens with manual speckle patterns. The transverse tensile strain field and maximum shear strain field are calculated and presented by the Digital image correlation (DIC) method....