Corrigendum to “On the fatigue limit of ductile metals under complex multiaxial loading” [International Journal of Fatigue 22 (2000) 137–145]

Zenner, Harald; Simbürger, Armin; Liu, Jiping

doi:10.1016/s0142-1123(00)00060-8

Cited by 9 publications

(3 citation statements)

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“…Four material parameters a, b, am and bn have to be determined. The criterion calibration is generally proposed from four fatigue limits : −1 (under fully reversed tension-compression load), −1 (under fully reversed torsion load), 0 (under repeated tension load) and 0 (under repeated torsion load) [6]. The expression of the four criterion parameters are given by equation (21) to (24).…”

Section: Conventional Fatigue Criteriamentioning

confidence: 99%

“…This study focusses only on the stress gradient induced by the defect without accounting for the size effect of the sample. The stress gradient is integrated in multiaxial fatigue criteria [2] both for critical plane approach [3,4] and integral approach [5,6]. The normal stress gradient is considered as it is much more predominant on fatigue behaviour than shear stress gradient [7,8,9].…”

Section: Introductionmentioning

confidence: 99%

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Ability of multiaxial fatigue criteria accounting for stress gradient effect for surface defective material

et al. 2018

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New high strength steels are widely used nowadays in many industrial areas as in automotive industry. These steels are more resistant and provide higher fatigue limits than latter ones but they are also more sensible to small defects. Natural defects that outcome from metallurgy (as shrinkage, inclusion, void) are not considered in this study. We focus on small manufacturing defects such as cutting edge defects generated by punching or other surface defects due to stamping. These defects are harmful on the material fatigue behaviour due to high stress concentration at defects root. They also generate stress gradient that is beneficial from the fatigue strength point of view. This study focusses on the stress gradient (it does not account for the size effect) from cylindrical defect on specimen edge. Practically a normal stress gradient is added in multiaxial fatigue criteria formulation. Both critical plane approach and integral approach are involved in the present study. This gradient is calculated from stress states at defects root by using FEM. Criteria fatigue function at N cycles is used to assess the material fatigue strength. Obviously multiaxial fatigue criteria accounting for stress gradient give more precise fatigue functions than criteria that do not consider the gradient influence.

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Section: Conventional Fatigue Criteriamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ability of multiaxial fatigue criteria accounting for stress gradient effect for surface defective material

et al. 2018

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“…For calculation of equivalent values Zenner's criterion was applied, providing better results than HMH criterion [, ]. The HMH criterion is applied in the case of materials for which

λ = 1 / \sqrt{3}

.…”

Section: Experimental Testsmentioning

confidence: 99%

Model of non-proportional fatigue load in the form of block load spectrum

Skibicki

Sempruch

2014

Mat.-wiss. u. Werkstofftech.

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Service load is often a non‐proportional multi‐axial load. The result of operation of such type of load on constructional elements is the decrease of fatigue lives in relation to proportional load of the same equivalent value. There are many damage models for non‐proportional fatigue, however, none of them obtained general acceptance. The key issue for creation of correct damage model is the selection of appropriate load parameters. The article presents methodology of obtaining cumulative exceeding histogram (load spectrum) containing key parameters of non‐proportional load. The hereby work includes: proposal of method of forming of block load spectrum for non‐proportional load, example block load programs for various types of multi‐axial load and results of experimental tests of fatigue lives obtained on the basis of formulated programs.

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Load Non-Proportionality in the Computational Models

Skibicki

2014

SpringerBriefs in Applied Sciences and Technology

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Corrigendum to “On the fatigue limit of ductile metals under complex multiaxial loading” [International Journal of Fatigue 22 (2000) 137–145]

Cited by 9 publications

References 0 publications

Ability of multiaxial fatigue criteria accounting for stress gradient effect for surface defective material

Ability of multiaxial fatigue criteria accounting for stress gradient effect for surface defective material

Model of non-proportional fatigue load in the form of block load spectrum

Load Non-Proportionality in the Computational Models

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