Fatigue Reliability Analysis Method of Reactor Structure Considering Cumulative Effect of Irradiation

The influence of irradiation should be considered in fatigue reliability analyses of reactor structures under irradiation conditions. In this study, the effects of irradiation hardening and irradiation embrittlement on fatigue performance parameters were quantified and a fatigue life prediction mode...

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Main Authors: Bo Sun, Junlin Pan, Zili Wang, Yi Ren, Dariusz Mazurkiewicz, Małgorzata Jasiulewicz-Kaczmarek, Katarzyna Antosz
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/4/801
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author Bo Sun
Junlin Pan
Zili Wang
Yi Ren
Dariusz Mazurkiewicz
Małgorzata Jasiulewicz-Kaczmarek
Katarzyna Antosz
author_facet Bo Sun
Junlin Pan
Zili Wang
Yi Ren
Dariusz Mazurkiewicz
Małgorzata Jasiulewicz-Kaczmarek
Katarzyna Antosz
author_sort Bo Sun
collection DOAJ
description The influence of irradiation should be considered in fatigue reliability analyses of reactor structures under irradiation conditions. In this study, the effects of irradiation hardening and irradiation embrittlement on fatigue performance parameters were quantified and a fatigue life prediction model was developed. Based on this model, which takes into account the cumulative effect of a neutron dose, the total fatigue damage was calculated according to Miner’s linear cumulative damage law, and the reliability analysis was carried out using the Monte Carlo simulation method. The case results show that the fatigue life acquired by taking into account the cumulative effect of irradiation was reduced by 24.3% compared with that acquired without considering the irradiation effect. Irradiation led to the increase of the fatigue life at low strains and its decrease at high strains, which is in accordance with the findings of an irradiation fatigue test. The rate of increase in the fatigue life decreased gradually with the increase of the neutron dose. The irradiation performance parameters had a small influence on fatigue reliability, while the fatigue strength coefficient and the elastic modulus had a great influence on the fatigue reliability. Compared with the current method, which uses a high safety factor to determine design parameters, a fatigue reliability analysis method taking into account the cumulative effect of irradiation could be more accurate in the reliability analysis and life prediction of reactor structures.
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spelling doaj.art-1c81e22714e743eda77caaecd0ff08cf2023-12-03T12:52:56ZengMDPI AGMaterials1996-19442021-02-0114480110.3390/ma14040801Fatigue Reliability Analysis Method of Reactor Structure Considering Cumulative Effect of IrradiationBo Sun0Junlin Pan1Zili Wang2Yi Ren3Dariusz Mazurkiewicz4Małgorzata Jasiulewicz-Kaczmarek5Katarzyna Antosz6School of Reliability and Systems Engineering, Beihang University, No.37 XueYuan RD. Haidian, Beijing 100191, ChinaSchool of Reliability and Systems Engineering, Beihang University, No.37 XueYuan RD. Haidian, Beijing 100191, ChinaSchool of Reliability and Systems Engineering, Beihang University, No.37 XueYuan RD. Haidian, Beijing 100191, ChinaSchool of Reliability and Systems Engineering, Beihang University, No.37 XueYuan RD. Haidian, Beijing 100191, ChinaMechanical Engineering Faculty, Lublin University of Technology, ul. Nadbystrzycka 36, 20-618 Lublin, PolandFaculty of Management Engineering, Poznan University of Technology, ul. Rychlewskiego 2, 60-965 Poznan, PolandFaculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, al. Powstańców Warszawy 8, 35-959 Rzeszow, PolandThe influence of irradiation should be considered in fatigue reliability analyses of reactor structures under irradiation conditions. In this study, the effects of irradiation hardening and irradiation embrittlement on fatigue performance parameters were quantified and a fatigue life prediction model was developed. Based on this model, which takes into account the cumulative effect of a neutron dose, the total fatigue damage was calculated according to Miner’s linear cumulative damage law, and the reliability analysis was carried out using the Monte Carlo simulation method. The case results show that the fatigue life acquired by taking into account the cumulative effect of irradiation was reduced by 24.3% compared with that acquired without considering the irradiation effect. Irradiation led to the increase of the fatigue life at low strains and its decrease at high strains, which is in accordance with the findings of an irradiation fatigue test. The rate of increase in the fatigue life decreased gradually with the increase of the neutron dose. The irradiation performance parameters had a small influence on fatigue reliability, while the fatigue strength coefficient and the elastic modulus had a great influence on the fatigue reliability. Compared with the current method, which uses a high safety factor to determine design parameters, a fatigue reliability analysis method taking into account the cumulative effect of irradiation could be more accurate in the reliability analysis and life prediction of reactor structures.https://www.mdpi.com/1996-1944/14/4/801fatiguereliabilityneutron doseirradiation effectreactor structure
spellingShingle Bo Sun
Junlin Pan
Zili Wang
Yi Ren
Dariusz Mazurkiewicz
Małgorzata Jasiulewicz-Kaczmarek
Katarzyna Antosz
Fatigue Reliability Analysis Method of Reactor Structure Considering Cumulative Effect of Irradiation
Materials
fatigue
reliability
neutron dose
irradiation effect
reactor structure
title Fatigue Reliability Analysis Method of Reactor Structure Considering Cumulative Effect of Irradiation
title_full Fatigue Reliability Analysis Method of Reactor Structure Considering Cumulative Effect of Irradiation
title_fullStr Fatigue Reliability Analysis Method of Reactor Structure Considering Cumulative Effect of Irradiation
title_full_unstemmed Fatigue Reliability Analysis Method of Reactor Structure Considering Cumulative Effect of Irradiation
title_short Fatigue Reliability Analysis Method of Reactor Structure Considering Cumulative Effect of Irradiation
title_sort fatigue reliability analysis method of reactor structure considering cumulative effect of irradiation
topic fatigue
reliability
neutron dose
irradiation effect
reactor structure
url https://www.mdpi.com/1996-1944/14/4/801
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AT ziliwang fatiguereliabilityanalysismethodofreactorstructureconsideringcumulativeeffectofirradiation
AT yiren fatiguereliabilityanalysismethodofreactorstructureconsideringcumulativeeffectofirradiation
AT dariuszmazurkiewicz fatiguereliabilityanalysismethodofreactorstructureconsideringcumulativeeffectofirradiation
AT małgorzatajasiulewiczkaczmarek fatiguereliabilityanalysismethodofreactorstructureconsideringcumulativeeffectofirradiation
AT katarzynaantosz fatiguereliabilityanalysismethodofreactorstructureconsideringcumulativeeffectofirradiation