structural geology, propagation mechanics and - Stanford School of ...

MPa
MPa
100
90
80
70
60
50
40
30
20
10
0
0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2
(a)
50
40
30
20
10
0
0 5 10 15 20 25
(b)
Distance from tip (m)
Distance from flank (m)
Figure 2.14. Comparison of the normal stress component distributions with distance
from the model compaction band tip (a) and flank (b) calculated using the BEM anticrack
solution (solid lines) and Eshelby inclusion solution (dotted lines). Beyond 2 cm from the
tip, the two solutions agree to within 1%. They increasingly diverge as the anticrack
solution goes toward infinity at the tip, while the Eshelby solution remains finite.
Adjacent to the flank, differences between the two solutions are less than 1% everywhere.
69
σ11 σ22 σ 33
σ 11
σ 22
σ 33