Highly stressed grain contacts enha

Highly stressed grain contacts enhance the dissolution at the interface between the solid in contact with the liquid. Indeed, if one assumed that grains are spheres with a diameter d and are packed with a simple cubic packing; at a strain ev, accumulated by postelastic creep, the grain-to-grain contacts becomes a circle with an area Ac (Fig. 9b). The stress intensification factor (B) is then defined by the Eq. (8): [61]