Crack Paths 2009

a

b

c

d

e

f

Figure 8: Constant loading fracture surfaces; shot blasted and tested at a) 40 kN, b) 45 kN, c) 50 k N

and as forged, tested at d) 25 kN, e) 29 k Nand f) 32 kN.

a

a

b

c

d

e

f

d

e

f

Figure 9: Variable loading fracture surfaces; Shot blasted and tested at maximulmoad a) 50 kN, b)

55 kN, c) 70 k Nand as forged, tested at maximu lmoad d) 45 kN, e) 50 k Nand f) 55 kN.

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