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Mean stress effect in multiaxial fatigue limit criteria

  • J. Papuga
  • R. Halama
Original
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Abstract

The paper deals with evaluating the mean stress effect in multiaxial criteria for fatigue limit estimation, with special emphasis on the mean shear stress effect. The usual practice of accepting the mean normal stress effect and neglecting the effect of static torsion is scrutinized. Two methods—two critical plane criteria, PCr (Papuga Criterion) and QCP (Quadratic parameter on the Critical Plane)—are described, and additional local stress parameters representing the mean torsion effect are implemented. The efficiency of the new implementations is evaluated on a large data set of 407 fatigue limits. Additionally, outputs of two other well-known methods—the Crossland method and the Dang Van method—are provided for comparison. The positive outcome of including the mean shear stress effect is evident not only in cases of applied mean torsion load, but also in cases with purely axial loading or with biaxial configurations.

Keywords

Mean stress effect Mean torsion load Multiaxial loading Critical plane criteria Fatigue of materials 

Notes

Acknowledgements

This work was supported by The Ministry of Education, Youth and Sports from the National Programme of Sustainability (NPU II) project “IT4Innovations excellence in science—LQ1602,” by the Grant Agency of the Czech Technical University in Prague (Grant No. SGS17/175/OHK2/3T/12), and also by the Czech Science Foundation (GA15-18274S). The support is gratefully acknowledged.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Faculty of Mechanical EngineeringCzech Technical University in PraguePrague 6Czech Republic
  2. 2.IT4InnovationsVŠB – Technical University of OstravaOstravaCzech Republic
  3. 3.Faculty of Mechanical EngineeringVŠB – Technical University of OstravaOstravaCzech Republic

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