Publication detail

Fatigue life of notches: an effect of manufacturing

KOZÁKOVÁ, K. FINTOVÁ, S. KLUSÁK, J.

Original Title

Fatigue life of notches: an effect of manufacturing

Type

conference paper

Language

English

Original Abstract

In this study, the influence of notches in the area of gigacycle fatigue is investigated. The presented study offers experimental fatigue results of smooth and notched specimens. Specimens were made of AW 7075 - T6511 aluminum alloy and have “v” shape notch with radii of 0.1, 0.2, 0.4, 0.8, 1.5, and 3 mm. The fatigue experiments were performed using an ultrasonic fatigue testing machine at 20 kHz test frequency. Fatigue properties of the material were studied and evaluated up to 10 billion cycles in the area of very high cycle fatigue. All fatigue tests were carried out under uniaxial symmetric tension/compression loading (R = -1) at room temperature. As-machined surface and fracture surface of smooth specimens and specimens with 6 different notch radii were observed under an SEM microscope. Results show that there is a strong influence of the manufacturing process on fatigue lifetime.

Keywords

Notches; very high cycle fatigue; aluminum aloy; machining; surface roughness; ultrasonic fatigue tests

Authors

KOZÁKOVÁ, K.; FINTOVÁ, S.; KLUSÁK, J.

Released

3. 1. 2023

Publisher

Elsevier

ISBN

2452-3216

Periodical

Procedia Structural Integrity

Year of study

42

Number

1

State

Republic of Italy

Pages from

270

Pages to

275

Pages count

6

URL

https://www.sciencedirect.com/science/article/pii/S245232162200590X

Full text in the Digital Library

http://hdl.handle.net/11012/213703

BibTex

@inproceedings{BUT182140,
  author="Kamila {Kozáková} and Stanislava {Fintová} and Jan {Klusák}",
  title="Fatigue life of notches: an effect of manufacturing",
  booktitle="Procedia Structural Integrity",
  year="2023",
  journal="Procedia Structural Integrity",
  volume="42",
  number="1",
  pages="270--275",
  publisher="Elsevier",
  doi="10.1016/j.prostr.2022.12.033",
  issn="2452-3216",
  url="https://www.sciencedirect.com/science/article/pii/S245232162200590X"
}