Crack Paths 2006

- S E Manalysis shows different features between fracture morphology in the

threshold and in the Paris zones. In the threshold zone the crack propagates both

on sinter-necks and inside powder particles, while for higher growth rates the

pores seem to influence the propagation heavily. Fracture morphology in the

threshold zone appears as serrated, while in the zones where the crack speed is

high and in the rupture zone, some cleavage and dimple features can be found.

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