Comment on paper: A unified frequency domain fatigue damage modeling approach for random-on-random spectrum [Z. Li and A. Ince. Int J Fatigue, 2019;124:123–137]

2020 ◽  
Vol 136 ◽  
pp. 105595 ◽  
Author(s):  
D. Benasciutti ◽  
A. Cristofori ◽  
R. Tovo
Keyword(s):  
Frequency Domain ◽  
Fatigue Damage ◽  
Damage Modeling ◽  
Modeling Approach

Progressive Fatigue Damage Modeling of Cross-ply Laminates, II: Experimental Evaluation

2009 ◽  
Vol 44 (10) ◽  
pp. 1261-1277 ◽  
Author(s):  
F. Taheri-Behrooz ◽  
M.M. Shokrieh ◽  
L.B. Lessard
Keyword(s):  
Fatigue Damage ◽  
Experimental Evaluation ◽  
Damage Modeling

Critical Evaluation of Frequency-Domain Approach for Fatigue Damage Estimation

2014 ◽  
Vol 136 (3) ◽  
Author(s):  
Gašper Vidic ◽  
Marko Nagode
Keyword(s):  
Frequency Domain ◽  
Fatigue Damage ◽  
Input Data ◽  
Critical Evaluation ◽  
High Amplitude ◽  
Damage Estimation ◽  
Accumulated Damage ◽  
Power Spectral ◽  
History Of ◽  
Frequency Domain Approach

Frequency-domain approach for fatigue damage estimation and lifetime prediction of mechanical components is often used for its computational efficiency and the capability to give a synthetic representation of a random process. The problem with the approach is that the input data, the stress power spectral density (PSD), may not include the information about potential small amount of high amplitude cycles which can substantially increase the accumulated fatigue damage. The paper investigates the scatter of the accumulated damage in generated random stress histories and compares them to the results obtained by a frequency-domain approach—the Dirlik method. The results show a possibility of a severe underestimation of accumulated damage when using frequency-domain approach. In case a typical stress, history of a certain mechanical component includes sporadic high amplitude cycles their effect shoud be taken into consideration when using frequency-domain approach.

Fatigue-A Test Integrated Damage Modeling Approach

1974 ◽  
Vol 11 (9) ◽  
pp. 563-570
Author(s):  
Darrell Simpkins ◽  
Robert L. Neulieb ◽  
Dennis J. Golden
Keyword(s):  
Damage Modeling ◽  
Modeling Approach
Sign in / Sign up

Export Citation Format

Share Document