Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
EN
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EL
| URI: | http://purl.tuc.gr/dl/dias/BE88F071-ACB2-4C6F-978C-795B6B5D109A | ||
| Έτος | 1991 | ||
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | ||
| Άδεια Χρήσης |
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| Βιβλιογραφική Αναφορά | G. Stavrakakis ,A. D. Pouliezos ,"Fatigue life prediction using a new moving window regression method,"Mech. Systems and Sig. Proc.,vol.5,no.4 ,pp.327-340 ,1991. doi: 10.1016/0888-3270(91)90033-2 https://doi.org/10.1016/0888-3270(91)90033-2 | ||
| Εμφανίζεται στις Συλλογές |
A simple method to assess the safety of metallic structures in the presence of crack-likedefects is considered. Linear regression techniques are used to fit fatigue-crack growth(FCG) laws of exponential type with respect to the number of cycles, in FCG experimentalresults. A moving window regression method is used to accurately predict whether or notthe critical crack length region is reached. The probability of fast failure at any time(number of cycles) is formulated in terms of a characteristic defect size exceeding a criticalvalue. The concept of conditional probability of failure is also employed here in order toevaluate the failure rate used in reliability practice. As an illustrative example, an analyticalclosed-form solution for the failure probability of structures is presented and evaluatedusing experimental FCG data.
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