- Tytuł:
- The use of spectral method for fatigue life assessment for non-gaussian random loads
- Autorzy:
-
Niesłony, A.
Böhm, M.
Łagoda, T.
Cianetti, F. - Powiązania:
- https://bibliotekanauki.pl/articles/387111.pdf
- Data publikacji:
- 2016
- Wydawca:
- Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
- Tematy:
-
spectral method
fatigue life
random loading
non-Gaussian
trwałość zmęczeniowa
metoda widmowa
stal - Opis:
- The well-known problem with the fatigue lifetime assessment of non-Gaussian loading signals with the use of spectral method has been presented in the paper. A correction factors that transform the non-Gaussian signal into an equivalent Gaussian signal proposed by Bracessi et al. (2009) has been used for the purpose of lifetime calculations together with Palmgren-Miner Hypothesis. The calculations have been performed for the 10HNAP steel under random non-Gaussian load with four dominating frequencies. The signal has been generated on the test stand SHM250 for random tension-compression tests. The results with zero and non-zero mean stresses have been used to calculate the fatigue life with the frequency domain method based on Dirlik’s model and with a time domain method with the use of the rainflow cycle counting algorithm. The obtained calculation results have been compared with experimental results.
- Źródło:
-
Acta Mechanica et Automatica; 2016, 10, 2; 100-103
1898-4088
2300-5319 - Pojawia się w:
- Acta Mechanica et Automatica
- Dostawca treści:
- Biblioteka Nauki
Artykuł