Figure 12

Categories of shear band arrangements as summarized from Figs 6, 7, 8, 9, 10.
Category A represents the dominant, radial shear bands whose inclination angles come greater with the increase of the mode mixity. Category B represents the secondary radial shear bands, of which the extent of shear-band zone and their inclinations angles increase as the mode mixity increases. The shear bands in Category C cluster near the notch root and do not extend far beyond a length larger than the root radius. Category D is unique for the Mode I condition.