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Solving Fatigue Problems for Combined Loading by Static Torsion and Reversed Cyclic Bending

  • V. N. PelykhEmail author
Article

The fatigue life and limit state of prismatic specimens under static torsion and reversed cyclic bending are analyzed using a fracture model that describes the relationship between the maximum and minimum amplitudes of a repeated stress cycle in the form of exponential transcendent function and the concept of equivalent stresses. The stress of a reversed cycle that reduces a repeated stress cycle to a reversed cycle in a fixed number of cycles to fracture is chosen as equivalent stress. The calculated results are validated experimentally for specimens made of alloyed steels and aluminum alloy.

Keywords

multi-cycle fatigue prismatic specimen fatigue life limit state repeated loading combined loading cyclic bending static torsion equivalent stress 

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.S. P. Timoshenko Institute of MechanicsNational Academy of Sciences of UkraineKyivUkraine

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