Fracture of materials has been classified into two types: brittle and ductile fracture. Brittle fracture takes place just after a Hookean regime. Ductile fracture, on the other hand, accompanies a ...

This polarized light image shows ice grains deformed in experiments with the ring-shear device in Neal Iverson's Iowa State laboratory. The experiments show that grains, on average, grow about 3 times ...