The paper presents a new damage assessment model defined for the strain energy density parameter. The model is defined for calculations in the frequency domain for the case of narrow-band loading. The strain energy density parameter is described as well as the process of determination of the proposed model. The general probability density and the probability density model of peaks for the proposed model is introduced. The damage degree model is used in the process of verification with a theoretical material and simulated stress loading signal. The comparison of results between the frequency and time domain calculation show good correlation between the obtained results.
Fatigue damage assessment model in frequency domain for non-Gaussian strain energy density parameter
Benasciutti D.Ultimo
2020
Abstract
The paper presents a new damage assessment model defined for the strain energy density parameter. The model is defined for calculations in the frequency domain for the case of narrow-band loading. The strain energy density parameter is described as well as the process of determination of the proposed model. The general probability density and the probability density model of peaks for the proposed model is introduced. The damage degree model is used in the process of verification with a theoretical material and simulated stress loading signal. The comparison of results between the frequency and time domain calculation show good correlation between the obtained results.| File | Dimensione | Formato | |
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2020_BOHM BENA_Frequency domain non-Gaussian energy parameter_VAL4_2020.pdf
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