Fig. 15

Contour maps of strength factor and indication of yielded elements in three stages. (a-c) maps of strength factor in stages 1–3, respectively, (e-g) maps of yielded elements in stages 1–3, respectively.

Contour maps of strength factor and indication of yielded elements in three stages. (a-c) maps of strength factor in stages 1–3, respectively, (e-g) maps of yielded elements in stages 1–3, respectively.