Krzysztof Podgórski
Professor, Head of the Department of Statistics
The Laplace multi-axial response model for fatigue analysis
Author
Summary, in English
This paper introduces means for fatigue damage rates estimation using Laplace distributed multiaxial loads. The model is suitable for description of stresses containing transients of random amplitudes and locations. Explicit formulas for computing the expected value of rainflow damage index as a function of excess kurtosis are given for correlated loads. A Laplace model is used to describe variability of forces and bending moments measured at some location on a cultivator frame. An example of actual cultivator data is used to illustrate the model and demonstrate the accuracy of damage index prediction.
Department/s
- Department of Statistics
Publishing year
2016-04-01
Language
English
Pages
11-17
Publication/Series
International Journal of Fatigue
Volume
85
Links
Document type
Journal article
Publisher
Elsevier
Topic
- Probability Theory and Statistics
Keywords
- Laplace moving averages
- Multi-axial loads
- Rainflow method
- Random loading
- Spectral density function
Status
Published
ISBN/ISSN/Other
- ISSN: 0142-1123