Fatigue of hollow specimens - stress distribution

What is it about?

The maximum stress during tensile loading of hollow tubular specimens is located at the inner surface of the specimen, which is a bit unexpected fact with some consequences in fatigue damage growth.

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Why is it important?

The paper documents a surprising fact that the stress levels on the inner surface of hollow fatigue specimens are higher than the stress levels on the outer surface for tensile loading. This property can influence the output of the out-of-phase tension-torsion loading, because the position of the maximum stress changes from outer to inner surface during the load period.