Crack Paths 2012

(a) Optical micrograph at N=9.90×10 4

cycles

(b) Internal crack shape obtained by C T

(c) Optical micrograph at N=1.11×105cycle

(d) Internal crack shape obtained by C T

Figure 11. Crack propagation behavior of Crack C from N=9.00×104 to 1.11×105 cycles.

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