Fatigue Fracture


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Fatigue Fracture
Fatigue FractureA fatigue fracture surface usually displays macroscopically two distinct regions: the fatigue crack propagation region and the final overload region. The latter has characteristics similar to those described in previous sections, since this surface was created when the supporting material was too slight to sustain the next (and final) load cycle. The final fracture is nearly always a catastrophic event and occurs with almost no plastic deformation. The lack of gross plastic deformation is also a characteristic of the propagation of the fatigue crack. Thus a very distinguishing characteristic of a component which broke due to fatigue loading is that the parts exhibit almost no gross plastic deformation.The main interest in this section is the fractographic f…
Citation
Charlie R. Brooks; Ashok Choudhury: Failure Analysis of Engineering Materials. Fatigue Fracture, Chapter (McGraw-Hill Professional, 2002), AccessEngineering Export