Influence of the stress gradient on the fatigue life calculation of a martensitic high strength steel

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Influence of the stress gradient on the fatigue life calculation of a martensitic high strength steel. / Milosevic, Igor; Winter, Gerhard; Grün, Florian et al.
in: Frattura ed Integrità Strutturale , Jahrgang 2017, Nr. 42, 01.10.2017.

Publikationen: Beitrag in FachzeitschriftArtikelForschung(peer-reviewed)

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@article{a0d6cb4dbafa4920b4545260ee97ed37,
title = "Influence of the stress gradient on the fatigue life calculation of a martensitic high strength steel",
abstract = "Nowadays lifetime calculation in the high cycle fatigue region iscommonly based on S/N curves which are modified by different influencesto ensure accurate results. Especially the application of these models isimportant when small components with complex stress distributions are used.The influence of the stress distribution was considered by the stress gradientapproach which is implemented in the lifetime tool FEMFAT. Specimenswith diameters of D4mm and D7.5mm were used to examine the effect of thecalculation modified by the stress gradient. On the one hand regardingdifferent types of this approach it can be shown that the results fit very wellcompared to the testing results but on the other hand a big difference wasobserved when the gradient increases by smaller specimen sizes.",
keywords = "High cycle fatigue, Lifetime calculation, Martensitic high strength steel, Stress based approaches, Stress gradient approach",
author = "Igor Milosevic and Gerhard Winter and Florian Gr{\"u}n and Martin Kober",
year = "2017",
month = oct,
day = "1",
language = "English",
volume = "2017",
journal = "Frattura ed Integrit{\`a} Strutturale ",
issn = "1971-8993",
publisher = "Gruppo Italiano Frattura",
number = "42",

}

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TY - JOUR

T1 - Influence of the stress gradient on the fatigue life calculation of a martensitic high strength steel

AU - Milosevic, Igor

AU - Winter, Gerhard

AU - Grün, Florian

AU - Kober, Martin

PY - 2017/10/1

Y1 - 2017/10/1

N2 - Nowadays lifetime calculation in the high cycle fatigue region iscommonly based on S/N curves which are modified by different influencesto ensure accurate results. Especially the application of these models isimportant when small components with complex stress distributions are used.The influence of the stress distribution was considered by the stress gradientapproach which is implemented in the lifetime tool FEMFAT. Specimenswith diameters of D4mm and D7.5mm were used to examine the effect of thecalculation modified by the stress gradient. On the one hand regardingdifferent types of this approach it can be shown that the results fit very wellcompared to the testing results but on the other hand a big difference wasobserved when the gradient increases by smaller specimen sizes.

AB - Nowadays lifetime calculation in the high cycle fatigue region iscommonly based on S/N curves which are modified by different influencesto ensure accurate results. Especially the application of these models isimportant when small components with complex stress distributions are used.The influence of the stress distribution was considered by the stress gradientapproach which is implemented in the lifetime tool FEMFAT. Specimenswith diameters of D4mm and D7.5mm were used to examine the effect of thecalculation modified by the stress gradient. On the one hand regardingdifferent types of this approach it can be shown that the results fit very wellcompared to the testing results but on the other hand a big difference wasobserved when the gradient increases by smaller specimen sizes.

KW - High cycle fatigue

KW - Lifetime calculation

KW - Martensitic high strength steel

KW - Stress based approaches

KW - Stress gradient approach

UR - http://www.scopus.com/inward/record.url?scp=85030788768&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85030788768

VL - 2017

JO - Frattura ed Integrità Strutturale

JF - Frattura ed Integrità Strutturale

SN - 1971-8993

IS - 42

ER -