A novel high-frequency fatigue testing methodology for small thin-walled structures in the HCF/VHCF regime

Florian Himmelbauer; Michael Tillmanns; Gerhard Winter; Florian Grün; Constantin Kiesling

doi:10.1016/j.ijfatigue.2021.106146

A novel high-frequency fatigue testing methodology for small thin-walled structures in the HCF/VHCF regime

Florian Himmelbauer^*, Michael Tillmanns, Gerhard Winter, Florian Grün, Constantin Kiesling

^*Corresponding author for this work

LEC GmbH (98780)

Research output: Contribution to journal › Article › peer-review

Abstract

A novel high-frequency testing methodology for small thin-walled component-like structures is presented that enables fatigue tests up to 1e9 cycles within 7–8 days. A shaker excites the designed thin-walled (min. 0.1 mm) specimen near its resonant frequency and a non-contact relative displacement measurement allows to set a defined notch stress. Calculated and experimentally determined resonant frequencies deviate max. by −1.9%. Furthermore, vibration and temperature measurements prove the stability of the technique, no self heating of the specimen is detected. Validation tests with an X5CrNiCuNb16-4 steel show a typical S-N behaviour for this material, whereby cracks always appear in the intended notch.

Original language	English
Article number	106146
Number of pages	10
Journal	International Journal of Fatigue
Volume	146
Early online date	19 Jan 2021
DOIs	https://doi.org/10.1016/j.ijfatigue.2021.106146
Publication status	Published - May 2021

Keywords

Component testing
Fatigue test methods
HCF/VHCF
High frequency testing
Thin-walled structures

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
General Materials Science
Industrial and Manufacturing Engineering
Modelling and Simulation

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10.1016/j.ijfatigue.2021.106146

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title = "A novel high-frequency fatigue testing methodology for small thin-walled structures in the HCF/VHCF regime",

abstract = "A novel high-frequency testing methodology for small thin-walled component-like structures is presented that enables fatigue tests up to 1e9 cycles within 7–8 days. A shaker excites the designed thin-walled (min. 0.1 mm) specimen near its resonant frequency and a non-contact relative displacement measurement allows to set a defined notch stress. Calculated and experimentally determined resonant frequencies deviate max. by −1.9%. Furthermore, vibration and temperature measurements prove the stability of the technique, no self heating of the specimen is detected. Validation tests with an X5CrNiCuNb16-4 steel show a typical S-N behaviour for this material, whereby cracks always appear in the intended notch.",

keywords = "Component testing, Fatigue test methods, HCF/VHCF, High frequency testing, Thin-walled structures",

author = "Florian Himmelbauer and Michael Tillmanns and Gerhard Winter and Florian Gr{\"u}n and Constantin Kiesling",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = may,

doi = "10.1016/j.ijfatigue.2021.106146",

language = "English",

volume = "146",

journal = "International Journal of Fatigue",

issn = "0142-1123",

publisher = "Elsevier Limited",

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AU - Himmelbauer, Florian

AU - Tillmanns, Michael

AU - Winter, Gerhard

AU - Grün, Florian

AU - Kiesling, Constantin

PY - 2021/5

Y1 - 2021/5

N2 - A novel high-frequency testing methodology for small thin-walled component-like structures is presented that enables fatigue tests up to 1e9 cycles within 7–8 days. A shaker excites the designed thin-walled (min. 0.1 mm) specimen near its resonant frequency and a non-contact relative displacement measurement allows to set a defined notch stress. Calculated and experimentally determined resonant frequencies deviate max. by −1.9%. Furthermore, vibration and temperature measurements prove the stability of the technique, no self heating of the specimen is detected. Validation tests with an X5CrNiCuNb16-4 steel show a typical S-N behaviour for this material, whereby cracks always appear in the intended notch.

AB - A novel high-frequency testing methodology for small thin-walled component-like structures is presented that enables fatigue tests up to 1e9 cycles within 7–8 days. A shaker excites the designed thin-walled (min. 0.1 mm) specimen near its resonant frequency and a non-contact relative displacement measurement allows to set a defined notch stress. Calculated and experimentally determined resonant frequencies deviate max. by −1.9%. Furthermore, vibration and temperature measurements prove the stability of the technique, no self heating of the specimen is detected. Validation tests with an X5CrNiCuNb16-4 steel show a typical S-N behaviour for this material, whereby cracks always appear in the intended notch.

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KW - Fatigue test methods

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KW - Thin-walled structures

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DO - 10.1016/j.ijfatigue.2021.106146

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JF - International Journal of Fatigue

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A novel high-frequency fatigue testing methodology for small thin-walled structures in the HCF/VHCF regime

Abstract

Keywords

ASJC Scopus subject areas

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