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Summary

  • Dariusz SkibickiEmail author
Chapter
Part of the SpringerBriefs in Applied Sciences and Technology book series (BRIEFSAPPLSCIENCES)

Abstract

Non-proportionality has an effect on all stage of the fatigue damage accumulation process. The mechanism of non-proportional fatigue is based mainly on the dislocation mechanism, which is evidenced in additional cyclic hardening. It is obvious, therefore, that it depends on many material properties. A basic micromechanic measure on which depends the material’s sensitivity to non-proportionality is stacking fault energy. It seems, however, that the dislocative mechanism of non-proportional loading has not been understood. It should be remembered that, according to some views, the effects of non-proportionality are not always the result of the intensification of dislocative processes. Materials that undergo a non-dislocative influence of non-proportionality, although sensitive to non-proportionality, do not manifest additional hardening.

Keywords

Damage Model Stack Fault Energy Additional Hardening Cycle Identification Cyclic Plasticity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Doring R, Hoffmeyer J, Seeger T, Vormwald M (2006) Short fatigue crack growth under nonproportional multiaxial elastic-plastic strains. Int J Fatigue 28(9):972–982. doi: 10.1016/j.ijfatigue.2005.08.012 CrossRefGoogle Scholar
  2. Fatemi A, Socie DF (1988) A critical plane approach to multiaxial fatigue damage including out-of-phase loading. Fatigue Fract Eng Mater Struct 11(3):149–165. doi: 10.1111/j.1460-2695.1988.tb01169.x CrossRefGoogle Scholar

Copyright information

© The Author(s) 2014

Authors and Affiliations

  1. 1.Faculty of Mechanical EngineeringUniversity of Technology and Life ScienceBydgoszczPoland

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