Fatigue reliability design and assessment of reactor pressure vessel structures: Concepts and validation

Zhu, Shun‐Peng; He, Jin-Chao; Ai, Yunfeng; Shi, Kun; Zhang, Liping

doi:10.1016/j.ijfatigue.2021.106524

Cited by 25 publications

(12 citation statements)

References 51 publications

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“…A simple random grouping method has been applied to enlarge the sample size in this section. There will 3 6 different combinations if randomly combing the six groups' experimental strain-controlled life data. A group of Coffin-Manson parameters can be obtained by fitting Equation (1) with one combination of life data.…”

Section: Random Grouping Methodsmentioning

confidence: 99%

“…Narayanan 5 introduced probabilistic models to address the uncertainty of porosity defects in aero engine applications. Niu et al 6 . construct the probabilistic conversion models between safety factor and reliability based on dispersion of materials.…”

Section: Introductionmentioning

confidence: 99%

“…Narayanan 5 introduced probabilistic models to address the uncertainty of porosity defects in aero engine applications. Niu et al 6 construct the probabilistic conversion models between safety factor and reliability based on dispersion of materials. In addition, some are focused on modelling fatigue life as well as other corresponding material parameters with a certain probability distribution.…”

Section: Introductionmentioning

confidence: 99%

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Reliability analysis of fatigue data using non‐probabilistic convex modelling approach

Luo

2022

Quality & Reliability Eng

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Life scatter should be estimated when performing fatigue reliability analysis for a structure. Probabilistic approaches require a large amount of statistical information, which is usually unrealistic because of the test condition constraints. In this study, a non‐probabilistic convex modelling approach was proposed for estimating E‐N scatter. A random grouping method is employed to enlarge the sample size for uncertainty quantification. The limited experimental data of AISI H11 was used for E‐N scatter estimation. The results show that non‐probabilistic convex modelling approach is more competitive in practical engineering application, especially for high‐reliability based optimization design.

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Section: Random Grouping Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reliability analysis of fatigue data using non‐probabilistic convex modelling approach

Luo

2022

Quality & Reliability Eng

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“…It is propounded that in addition to the "stress peak point", the stress field in a specific region should also be considered during fatigue life analysis [6,7,36,[43][44][45][46]. TCD, the volumetric method, and the SFI approach are defined as macro-mechanical methods; thus, failure criteria of these methods should be combined with the critical damage region.…”

Section: Summary Of Fatigue Damage Failure Area Shapes For Different ...mentioning

confidence: 99%

Experiment and Theoretical Investigation on Fatigue Life Prediction of Fracturing Pumpheads Based on a Novel Stress-Field Intensity Approach

Yun

Han³

et al. 2022

Materials

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Fracturing pumpheads are typical pressure vessels that experience frequent fatigue failure under the effect of notches in their cross-bore. To enhance the fatigue life of fracturing pumpheads, the study of the notch effect is indispensable and important to establish a reliable mathematical model to predict their fatigue life. In the present paper, two novel fatigue life prediction models are proposed for notched specimens. In these models, two new geometric fatigue failure regions are defined to improve the weight function. Finally, the elaborated novel stress-field intensity approach was applied to three different types of notched specimens. Experiment results indicate that the new SFI approach achieves 47.82%, 39.48%, and 31.85% higher prediction accuracy than the traditional SFI approach, respectively. It was found that the modified SFI approach provided better predictions than the traditional SFI approach and the TCD method. The II-th novel SFI approach had the highest accuracy, and the I-th novel SFI approach was more suitable for sharply notched specimens.

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“…, 2017a; Zhu et al ., 2018a, b, c, d; Liao et al ., 2019; Dantas et al. , 2021; Niu et al. , 2021a, b; Zhao et al.…”

Section: Introductionmentioning

confidence: 99%

Multiaxial fatigue under variable amplitude loadings: review and solutions

Deng

Zhu

et al. 2022

IJSI

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PurposeEngineering components/structures with geometric discontinuities normally bear complex and variable loads, which lead to a multiaxial and random/variable amplitude stress/strain state. Hence, this study aims how to effectively evaluate the multiaxial random/variable amplitude fatigue life.Design/methodology/approachRecent studies on critical plane method under multiaxial random/variable amplitude loading are reviewed, and the computational framework is clearly presented in this paper.FindingsSome basic concepts and latest achievements in multiaxial random/variable amplitude fatigue analysis are introduced. This review summarizes the research status of four main aspects of multiaxial fatigue under random/variable amplitude loadings, namely multiaxial fatigue criterion, method for critical plane determination, cycle counting method and damage accumulation criterion. Particularly, the latest achievements of multiaxial random/variable amplitude fatigue using critical plane methods are classified and highlighted.Originality/valueThis review attempts to provide references for further research on multiaxial random/variable amplitude fatigue and to promote the development of multiaxial fatigue from experimental research to practical engineering application.

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Fatigue reliability design and assessment of reactor pressure vessel structures: Concepts and validation

Cited by 25 publications

References 51 publications

Reliability analysis of fatigue data using non‐probabilistic convex modelling approach

Reliability analysis of fatigue data using non‐probabilistic convex modelling approach

Experiment and Theoretical Investigation on Fatigue Life Prediction of Fracturing Pumpheads Based on a Novel Stress-Field Intensity Approach

Multiaxial fatigue under variable amplitude loadings: review and solutions

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