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Various parameters of the multiaxial variable amplitude loading and their effect on fatigue life and fatigue life computation
  • J. Papuga,
  • Matúš Margetin,
  • Vladimír Chmelko
J. Papuga
Ceske vysoke uceni technicke v Praze
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Matúš Margetin
Slovenska technicka univerzita v Bratislave
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Vladimír Chmelko
Slovenska technicka univerzita v Bratislave
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Abstract

The paper discusses various partial solutions used for estimating fatigue life under variable amplitude multiaxial loading in the high-cycle fatigue domain. The concurring effects are treated, and their proposed solutions are commented upon. The major focus is on the categories of the phase shift effect and of cycle counting, and on the scope and quality of data, which support discussed theories. Results of own new experimental data set on specimens from S355 steel are provided. Fatigue life estimates for McDiarmid and Findley multiaxial methods and for two different methods of load path decomposition to cycles are shown to highlight some of the points open for discussion. It is concluded that the available experimental data are not sufficient to substantiate a clear decision to follow a definite algorithm.

Peer review status:ACCEPTED

24 Jul 2021Submitted to Fatigue & Fracture of Engineering Materials & Structures
26 Jul 2021Assigned to Editor
26 Jul 2021Submission Checks Completed
26 Jul 2021Reviewer(s) Assigned
26 Jul 2021Review(s) Completed, Editorial Evaluation Pending
28 Jul 2021Editorial Decision: Accept