Detail publikačního výsledku

Fatigue Life Estimation of Thin-Walled Fillet-Welded Joints Under Constant Amplitude Loading

Martin Sladký, Jan Papuga, Martin Machač, Ivo Jebáček

Originální název

Fatigue Life Estimation of Thin-Walled Fillet-Welded Joints Under Constant Amplitude Loading

Anglický název

Fatigue Life Estimation of Thin-Walled Fillet-Welded Joints Under Constant Amplitude Loading

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

This study evaluates the fatigue life estimation performance of nominal, hot-spot, and notch stress-based approaches for thin-walled fillet-welded joints made of steel subjected to constant-amplitude loading. The employed dataset comprised ten configurations with nearly identical wall thicknesses and load asymmetry ratios, which differed mainly in their geometry and loading conditions. Assessing this dataset as a whole revealed that all three approaches exhibited a comparable average level of conservatism. However, the nominal and notch stress-based approaches exhibited pronounced scatter, leading to substantial configuration-to-configuration variations in the level of conservatism. The most consistent predictions, reflected by the lowest scatter, were observed for the hot-spot stress-based approach. Its performance could be further enhanced by extending the wall-thickness ranges over which the thickness corrections are derived from the actual wall thickness. The notch stress-based S-N data exhibited a clear tendency to separate into two approximately parallel curves corresponding to hollow section-based and plate-based configurations.

Anglický abstrakt

This study evaluates the fatigue life estimation performance of nominal, hot-spot, and notch stress-based approaches for thin-walled fillet-welded joints made of steel subjected to constant-amplitude loading. The employed dataset comprised ten configurations with nearly identical wall thicknesses and load asymmetry ratios, which differed mainly in their geometry and loading conditions. Assessing this dataset as a whole revealed that all three approaches exhibited a comparable average level of conservatism. However, the nominal and notch stress-based approaches exhibited pronounced scatter, leading to substantial configuration-to-configuration variations in the level of conservatism. The most consistent predictions, reflected by the lowest scatter, were observed for the hot-spot stress-based approach. Its performance could be further enhanced by extending the wall-thickness ranges over which the thickness corrections are derived from the actual wall thickness. The notch stress-based S-N data exhibited a clear tendency to separate into two approximately parallel curves corresponding to hollow section-based and plate-based configurations.

Klíčová slova

high cycle fatigue life prediction; hot-spot stress; nominal stress; notch stress; thin-walled welded joints

Klíčová slova v angličtině

high cycle fatigue life prediction; hot-spot stress; nominal stress; notch stress; thin-walled welded joints

Autoři

Martin Sladký, Jan Papuga, Martin Machač, Ivo Jebáček

Vydáno

01.01.2026

Nakladatel

Elsevier

Kniha

Procedia Structural Integrity

Periodikum

Procedia Structural Integrity

Svazek

79

Stát

Nizozemsko

Strany od

421

Strany do

432

Strany počet

12

URL

https://www.sciencedirect.com/science/article/pii/S2452321625009898

Plný text v Digitální knihovně

http://hdl.handle.net/11012/260564

BibTex

@inproceedings{BUT201953,
  author="Martin {Sladký} and  {} and  {} and Ivo {Jebáček}",
  title="Fatigue Life Estimation of Thin-Walled Fillet-Welded Joints Under Constant Amplitude Loading",
  booktitle="Procedia Structural Integrity",
  year="2026",
  journal="Procedia Structural Integrity",
  volume="79",
  pages="421--432",
  publisher="Elsevier",
  doi="10.1016/j.prostr.2025.12.353",
  url="https://www.sciencedirect.com/science/article/pii/S2452321625009898"
}