Fatigue and Fracture Mechanics
The account above is purely empirical and, though it allows life prediction and design assurance, life improvement or design optimisation can be enhanced using Fracture mechanics. It can be developed in four stages.
- Crack nucleation;
- Stage I crack-growth;
- Stage II crack-growth; and
- Ultimate ductile failure.
Read more about this topic: Fatigue (material)
Famous quotes containing the words fatigue and/or mechanics:
“Croft had an instinctive knowledge of land, sensed the stresses and torsions that had first erupted it, the abrasions of wind and water. The platoon had long ceased to question any direction he took; they knew he would be right as infallibly as sun after darkness or fatigue after a long march.”
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