Crack Paths 2006

4000

a

3500

3000

2500

2000

c

1500

D K(a) [N/mm3/2]

1000

D K(c) [N/mm3/2]

500

0

0

50

100

150

200

250

300

a,c[mm]

Figure 7. Development of the equivalent stress intensity factor during the crack growth

a)

b)

Figure 8. Comparison of the calculated crack fronts with the real crack surface

a) global view

b) detailed view on the initial crack growth area