VHCF properties and assessment of specimens and thin-walled component-like structures made of high-strength steel X5CrNiCuNb16-4
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In: International Journal of Fatigue, Vol. 156.2022, No. March, 106645, 19.02.2022.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - VHCF properties and assessment of specimens and thin-walled component-like structures made of high-strength steel X5CrNiCuNb16-4
AU - Himmelbauer, Florian
AU - Winter, Gerhard
AU - Grün, Florian
AU - Kiesling, Constantin
N1 - Publisher Copyright: © 2021 The Authors
PY - 2022/2/19
Y1 - 2022/2/19
N2 - Determining the component strength from the material strength is an essential but difficult task in dimensioning. Therefore, extensive HCF and VHCF tests are carried out with specimens and thin-walled component-like structures made of X5CrNiCuNb16-4. Despite complex geometry and high-strength material, a local assessment concept of a design code is well applicable. Moreover, specimens and structures show similar VHCF properties, confirming the transferability. Large scatter in lifetime is mainly due to inclusions. Considering the stress intensity factor significantly reduces the scatter and thus enables a more reliable assessment. Furthermore, the area parameter model provides a conservative fatigue strength for 10 7 cycles.
AB - Determining the component strength from the material strength is an essential but difficult task in dimensioning. Therefore, extensive HCF and VHCF tests are carried out with specimens and thin-walled component-like structures made of X5CrNiCuNb16-4. Despite complex geometry and high-strength material, a local assessment concept of a design code is well applicable. Moreover, specimens and structures show similar VHCF properties, confirming the transferability. Large scatter in lifetime is mainly due to inclusions. Considering the stress intensity factor significantly reduces the scatter and thus enables a more reliable assessment. Furthermore, the area parameter model provides a conservative fatigue strength for 10 7 cycles.
KW - Very high cycle fatigue
KW - Component testing
KW - Fatigue strength
KW - Life prediction
KW - Inclusions
UR - http://www.scopus.com/inward/record.url?scp=85119912246&partnerID=8YFLogxK
U2 - 10.1016/j.ijfatigue.2021.106645
DO - 10.1016/j.ijfatigue.2021.106645
M3 - Article
VL - 156.2022
JO - International Journal of Fatigue
JF - International Journal of Fatigue
SN - 0142-1123
IS - March
M1 - 106645
ER -
