Localized strain rates can be obtained via digital image correlation from a sheet of paper under a tensile strain.
A sheet of paper an be peeled in half along its major plane. The propagating fracture front produces avalanche like dynamics.
Granular flow in submerged hoppers show is used to study grain – liquid interactions. The superficial velocity of fluid is faster than the grains’ leading to counter intuitive fluid-is-faster effect Continue Reading →