Paper Titles
Preface and Scientific Committee
The Influence of the Ferrite and Pearlite Grain Size on the S-N Fatigue Characteristics of Steel
p.3
Experimental Investigation of Fatigue Damage Accumulation in En295 Steel
p.9
Multiaxial Fatigue Life Assessment Method Based on the Mean Value of Modified Second Invariant of the Deviatoric Stress
p.15
Fatigue Characteristic of S355J2 Steel after Surface Frictional-Mechanical Treatment in Corrosive Environment
p.21
Analysis of Strain Distribution in Notch Zone in Aluminium FSW Joints for Irregular Fatigue Loading Conditions
p.27
Comparison of C45 Steel Fatigue Characteristics Carried out at Controlled Stress and Energy Parameter, Subjected to Fully Reversed Bending
p.33
Accumulation of Fatigue Damages for Block-Type Loads with Use of Material Memory Function
p.39
Influence of Stresses below the Fatigue Limit on Fatigue Life
p.45

Multiaxial Fatigue Life Assessment Method Based on the Mean Value of Modified Second Invariant of the Deviatoric Stress

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Abstract:

Stress invariants approach to the multiaxial fatigue life estimation is generally based on the root mean square value of second invariant of the deviatoric stress amplitude and the value of hydrostatic stress. Such an approach omits a significant part of the information about multiaxial load history. It is particularly noticeable in case of non-proportional loadings, which lead to a reduction of fatigue life (i.e. [1–3]). In this work a new method based on the mean value of modified second invariant of the deviatoric stress has been presented.

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Periodical:

Solid State Phenomena (Volume 224)

Pages:

15-20

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.224.15

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Online since:

November 2014

Authors:

Łukasz Pejkowski*, Dariusz Skibicki

Keywords:

Fatigue Criteria, Fatigue Life Estimation, Multiaxial Fatigue, Non-Proportional Loading, Stress Invariants

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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