Influence of Size Effect and Stress Gradient on the High-cycle Fatigue Strength of a 1.4542 Steel

Publikationen: KonferenzbeitragVortragForschung(peer-reviewed)

Standard

Influence of Size Effect and Stress Gradient on the High-cycle Fatigue Strength of a 1.4542 Steel. / Milosevic, Igor; Winter, Gerhard; Grün, Florian et al.
2016. 61-68 XVIII International Colloquium Mechanical Fatigue of Metals, Gijón, Spanien.

Publikationen: KonferenzbeitragVortragForschung(peer-reviewed)

Harvard

Milosevic, I, Winter, G, Grün, F & Kober, M 2016, 'Influence of Size Effect and Stress Gradient on the High-cycle Fatigue Strength of a 1.4542 Steel', XVIII International Colloquium Mechanical Fatigue of Metals, Gijón, Spanien, 5/09/16 - 7/09/16 S. 61-68.

APA

Milosevic, I., Winter, G., Grün, F., & Kober, M. (2016). Influence of Size Effect and Stress Gradient on the High-cycle Fatigue Strength of a 1.4542 Steel. 61-68. XVIII International Colloquium Mechanical Fatigue of Metals, Gijón, Spanien.

Vancouver

Milosevic I, Winter G, Grün F, Kober M. Influence of Size Effect and Stress Gradient on the High-cycle Fatigue Strength of a 1.4542 Steel. 2016. XVIII International Colloquium Mechanical Fatigue of Metals, Gijón, Spanien.

Bibtex - Download

@conference{016314aba49842608b29cee84fb9dd9f,
title = "Influence of Size Effect and Stress Gradient on the High-cycle Fatigue Strength of a 1.4542 Steel",
abstract = "Nowadays technical applications require very small components which leads to the question of how to handle fatigue strength data gained from tests carried out on specimen which are even larger than the component itself. Previous high-cycle-fatigue (HCF) tests have outlined the negative influence of increasing “risk volumes” due to enlargement of the specimen size. Additional to the effect of “risk volumes” the influence of stress gradient may not be neglected as the gradient changes as well due to the enlargement of the specimen size. Especially thin profiles could be affected by high stress gradients which results in high and low stress loaded profile areas. The fatigue strength of an hourglass shaped specimen with a standardized diameter of 7.5 mm tends to have higher fatigue strength than a specimen with a larger diameter. In this work rotating bending tests were carried out on specimens with a diameter of 4 and 7.5 mm. Lifetime simulations with different specimen diameters (D2.5, D4 and D7.5) were carried out by a common simulation tool FEMFAT and simultaneous testing of D4 and D7.5 specimens was performed to compare the results. An outlook is given on how such influences can be estimated and an appropriate method can be derived for damage calculations.",
author = "Igor Milosevic and Gerhard Winter and Florian Gr{\"u}n and Martin Kober",
year = "2016",
language = "Deutsch",
pages = "61--68",
note = "XVIII International Colloquium Mechanical Fatigue of Metals, ICMFM ; Conference date: 05-09-2016 Through 07-09-2016",
url = "http://icmfm18.org/",

}

RIS (suitable for import to EndNote) - Download

TY - CONF

T1 - Influence of Size Effect and Stress Gradient on the High-cycle Fatigue Strength of a 1.4542 Steel

AU - Milosevic, Igor

AU - Winter, Gerhard

AU - Grün, Florian

AU - Kober, Martin

PY - 2016

Y1 - 2016

N2 - Nowadays technical applications require very small components which leads to the question of how to handle fatigue strength data gained from tests carried out on specimen which are even larger than the component itself. Previous high-cycle-fatigue (HCF) tests have outlined the negative influence of increasing “risk volumes” due to enlargement of the specimen size. Additional to the effect of “risk volumes” the influence of stress gradient may not be neglected as the gradient changes as well due to the enlargement of the specimen size. Especially thin profiles could be affected by high stress gradients which results in high and low stress loaded profile areas. The fatigue strength of an hourglass shaped specimen with a standardized diameter of 7.5 mm tends to have higher fatigue strength than a specimen with a larger diameter. In this work rotating bending tests were carried out on specimens with a diameter of 4 and 7.5 mm. Lifetime simulations with different specimen diameters (D2.5, D4 and D7.5) were carried out by a common simulation tool FEMFAT and simultaneous testing of D4 and D7.5 specimens was performed to compare the results. An outlook is given on how such influences can be estimated and an appropriate method can be derived for damage calculations.

AB - Nowadays technical applications require very small components which leads to the question of how to handle fatigue strength data gained from tests carried out on specimen which are even larger than the component itself. Previous high-cycle-fatigue (HCF) tests have outlined the negative influence of increasing “risk volumes” due to enlargement of the specimen size. Additional to the effect of “risk volumes” the influence of stress gradient may not be neglected as the gradient changes as well due to the enlargement of the specimen size. Especially thin profiles could be affected by high stress gradients which results in high and low stress loaded profile areas. The fatigue strength of an hourglass shaped specimen with a standardized diameter of 7.5 mm tends to have higher fatigue strength than a specimen with a larger diameter. In this work rotating bending tests were carried out on specimens with a diameter of 4 and 7.5 mm. Lifetime simulations with different specimen diameters (D2.5, D4 and D7.5) were carried out by a common simulation tool FEMFAT and simultaneous testing of D4 and D7.5 specimens was performed to compare the results. An outlook is given on how such influences can be estimated and an appropriate method can be derived for damage calculations.

M3 - Vortrag

SP - 61

EP - 68

T2 - XVIII International Colloquium Mechanical Fatigue of Metals

Y2 - 5 September 2016 through 7 September 2016

ER -