Figure 11
Direction vectors of the three principal stress components projected on the (x1, x2) plane for the Mode-I loading condition as in Fig. 10(a) σI, (b) σII, and (c) σIII,.
The direction of σII, in the bridging zone between the two notches differs from that elsewhere, indicating a change of shear band direction according to the Rudnicki-Rice prediction in Fig. 4.
