on A Practical Discussion
نویسنده
چکیده
Fatigue is defined as 'Failure under a repeated or otherwise varying load, which never reaches a level sufficient to cause failure in a single application.' Fatigue cracks always develop as a result of cyclic plastic deformation in a localised area. This plastic deformation often arises, not due to theoretical stresses in a perfect part, but rather due to the presence of a small crack or pre-existing defect on the surface of a component, which is practically undetectable and clearly unfeasible to model using traditional Finite Element techniques.
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