Chalmers Finite Element Center - FEniCS Project

QUASI-STATIC CRACK GROWTH IN FRACTURE MECHANICS 13
6.2. Stiff vs weak inclusion. As before, the single edge crack is initiated at the left
boundary and a weak (or stiff) inclusion with radius 0.1m is inserted at x = (0.75, 1.0) m.
The dimensions of the body are the same as in example 1 with W = 1.0 m and h = 2.0
m. The elastic modulus of the bulk body was set to E = 1000 Pa, the weak inclusion to
E = 1 Pa and the stiff inclusion to E = 1000000 Pa. The resulting crack trajectories can
be seen in Figure 12 and Figure 13. As seen in the figures, the crack tends towards the
weak inclusion and away from the stiff inclusion.
Figure 12. Crack trajectory for the weak inclusion.