A modified accumulation damage algorithm for predicting corrosion fatigue life by considering load interaction for aluminum alloys

Liu, Mu-Dong; Xiong, Jun-Jiang; Wang, Chiquan

doi:10.1177/1056789518763707

Cited by 13 publications

(12 citation statements)

References 36 publications

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“…It can be concluded that the increase of concentration promoted pitting corrosion, which was the main factor to promote crack initiation and reduced fatigue life. Similar conclusion has been reported in the corrosion fatigue research of 2024 and 7075 aluminum alloys, fatigue cracks are easier to nucleate at corrosion pits on the surfaces of specimen (Liu et al, 2018).…”

Section: In Situ Salt Solution Corrosion Fatiguesupporting

confidence: 89%

Characterizing the damage behavior of thin sheets for fuselage based on in situ corrosion fatigue test and digital image correlation technique

Chen

Song

et al. 2020

International Journal of Damage Mechanics

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The effect of salt spray and salt solution on the fatigue properties of 2024-T3 aluminum alloy plate used for aircraft fuselage structure have been investigated by combining Digital Image Correlation (DIC) technology with in-situ corrosion fatigue test. For this purpose, an in-situ corrosion fatigue platform was designed for gas and liquid phases. Fatigue experimental investigation was carried out in salt spray and salt solution environments respectively, the crack propagation process was monitored by the DIC technology and the influences of NaCl concentration on fatigue life and crack growth rate were analyzed under the two kinds of corrosive environments. Moreover, the failure mechanism is discussed based on the micro-morphology of fracture and the composition of corrosion products. Experimental results demonstrated that for the corrosion fatigue in salt spray environment, there is a competition between the hydrogen embrittlement and the crack tip closure effect caused by corrosion products, which results in fatigue life decreasing with the increase of NaCl concentration first and then increasing. The fatigue life (with 3.50 wt.% NaCl salt spray) is the lowest, which is 82.9% of that in air, while the fatigue life (with 5.00 wt.% NaCl salt spray) is 112.6% of that in air. But for the corrosion fatigue in the NaCl salt solution environment, there is no obvious crack tip closure effect. In the 5.00 wt.% NaCl salt solution environment, fatigue life is 74.2% of that in air. The microfractures and strain nephogram of specimens revealed the stress concentration caused by corrosion pits, which might be the main factor for the decrease of fatigue life.

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Section: In Situ Salt Solution Corrosion Fatiguesupporting

confidence: 89%

Characterizing the damage behavior of thin sheets for fuselage based on in situ corrosion fatigue test and digital image correlation technique

Chen

Song

et al. 2020

International Journal of Damage Mechanics

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“…Under alternate loads, the stress concentration occurs around the pits. Then, once the critical criteria for pit-to-crack transition is reached, a large number of microcracks will emanate from these pits (Liu et al., 2019; Walde and Hillberry, 2007). Unlike in macrocrack propagation stage, the damage evolution in microcrack propagation stage is a reflection of the collective behavior of all microcracks.…”

Section: Multi-scale Damage Evolution Equation For Corrosion Fatigue mentioning

confidence: 99%

A multi-scale corrosion fatigue damage model of high-strength bridge wires

Fan

Wang

2019

International Journal of Damage Mechanics

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Cables are the most sensitive components in cable-supported bridges, and the failure of cables is usually caused by the degradation of mechanical properties of internal wires. Based on Faraday's law and the rates of microcrack initiation and propagation, a multi-scale corrosion fatigue damage model was developed to describe the damage evolution in the stages of pit growth and microcrack propagation. The accuracy and effectiveness of this damage model were also verified through the experimental data of corrosive fatigue life of high-strength bridge wires. The result shows that this damage model can describe the multi-scale corrosion fatigue damage evolution process of high-strength bridge wires reasonably and effectively, which provides a new way to better understand the trans-scale damage evolution mechanism during the corrosion fatigue process of high-strength bridge wires.

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“…When the value is exceeded, the remaining cycles below the fatigue limit become harmless. Liu et al [14] proposed a modified Miner damage accumulation algorithm for both pure and corrosion fatigue that considers load interaction effects by introducing the effective stress ratio concept R e f f from the Willenborg-Chang fracture mechanics model [15] into Miner's rule.…”

Section: Introductionmentioning

confidence: 99%

Cumulative Damage and Life Prediction Models for High-Cycle Fatigue of Metals: A Review

Hectors

Waele

2021

Metals

103

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Fatigue design of engineering structures is typically based on lifetime calculation using a cumulative damage law. The linear damage rule by Miner is the universal standard for fatigue design even though numerous experimental studies have shown its deficiencies and possible non-conservative outcomes. In an effort to overcome these deficiencies, many nonlinear cumulative damage models and life prediction models have been developed since; however, none of them have found wide acceptance. This review article aims to provide a comprehensive overview of the state-of-the art in cumulative damage and lifetime prediction models for endurance based high-cycle fatigue design of metal structures.

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A modified accumulation damage algorithm for predicting corrosion fatigue life by considering load interaction for aluminum alloys

Cited by 13 publications

References 36 publications

Characterizing the damage behavior of thin sheets for fuselage based on in situ corrosion fatigue test and digital image correlation technique

Characterizing the damage behavior of thin sheets for fuselage based on in situ corrosion fatigue test and digital image correlation technique

A multi-scale corrosion fatigue damage model of high-strength bridge wires

Cumulative Damage and Life Prediction Models for High-Cycle Fatigue of Metals: A Review

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