کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
775951 | 1463848 | 2007 | 15 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A novel frequency domain method for predicting fatigue crack growth under wide band random loading A novel frequency domain method for predicting fatigue crack growth under wide band random loading](/preview/png/775951.png)
This work deals with the evaluation of the fatigue crack growth rate of structural components subjected to uniaxial Gaussian stationary wide band random loading. In detail, a new frequency domain method that allows the user to estimate the expected crack growth rate directly from the PSD data is proposed. Using a stochastic mean function properly, introduced and described by simple closed form relationships implemented by systematic numerical simulations of a high number of wide band random processes, the proposed method permits to avoid the onerous time domain simulations and provides in general crack growth rate predictions in a good accordance with the so-called time domain method. Practical applications, carried out by considering various PSDs reported in the literature, have corroborated the accuracy of the proposed method.
Journal: International Journal of Fatigue - Volume 29, Issue 6, June 2007, Pages 1065–1079