FN Archimer Export Format PT J TI Life-time reliability based assessment of structures submitted to thermal fatigue BT AF GUEDE, Zakoua SULDRET, B LEMAIRE, M AS 1:1;2:2;3:3; FF 1:PDG-DOP-DCB-ERT-HO;2:;3:; C1 IFREMER, Ctr Brest, F-29280 Plouzane, France. EDF R&D, F-77818 Moret Sur Loing, France. LaMI, Inst Francais Mecan Avancee, F-63175 Aubiere, France. C2 IFREMER, FRANCE EDF, FRANCE IFMA, FRANCE SI BREST SE PDG-DOP-DCB-ERT-HO IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 1.117 TC 13 UR https://archimer.ifremer.fr/doc/2007/publication-2730.pdf LA English DT Article DE ;Spectral methods;Structural reliability;Thermal fatigue;Life time AB A probabilistic approach of the current thermal fatigue design of nuclear components is set up. It aims at incorporating all kinds of uncertainties that affect the thermal fatigue behaviour. This approach is based on the theory of structural reliability. Two dual approaches of reliability analysis for the thermal fatigue are defined, respectively, in the time domain and in the frequency domain. Beside the probability of failure calculation, the sensitivity of the reliability index to each random variable is estimated. The proposed method is applied to a pipe submitted to thermal loading due to water flow. Both high cycles fatigue (HCF) and low cycles fatigue (LCF) regimes are investigated. The results show that it is possible to perform a complete reliability analysis to compute the failure probability. It is observed that the scatter of fatigue data and the heat transfer coefficient are the most important variables in thermal fatigue reliability. (C) 2006 Elsevier Ltd. All rights reserved. PY 2007 PD JUN SO International Journal of Fatigue SN 0142-1123 PU Elsevier VL 29 IS 7 UT 000246954200016 BP 1359 EP 1373 DI 10.1016/j.ijfatigue.2006.10.021 ID 2730 ER EF