The thermoelasticity problem for pressure vessels with protective coatings, operating under conditions of mechanochemical corrosion

Sedova, Olga; Pronina, Yulia

doi:10.1016/j.ijengsci.2021.103589

Cited by 16 publications

(2 citation statements)

References 40 publications

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“…To illustrate the contact pressure evolution, we consider a twodimensional wear contact problem (Galin, 1976), for which a detailed analysis has been available in the literature (Aleksandrov et al, 1978;Argatov and Fadin, 2011). It is anticipated that with certain modifications the fractional time-derivative approach developed below can be applied to model other temporaryspatial severe damage processes like mechanochemical corrosion (Sedova and Pronina, 2022), wear/scratch damage (Dasari et al, 2009), and wear of metamaterials (Garland et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

A Fractional Time-Derivative Model for Severe Wear: Hypothesis and Implications

Argatov

2022

Front. Mech. Eng.

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Based on the example of wear of polymers, which exhibit a power-law time variation of the wear loss under constant loading conditions, a fractional time-derivative wear equation has been introduced. The wear contact problem with a fixed contact zone is solved using the known method of separation of spatial and time variables. It is shown that during the wear process, the contact pressure approaches a uniform distribution over the contact area, which is termed as a quasi-steady-state solution, since the mean volumetric wear rate does not tend to become constant. It is of interest that the contact pressure variation displays a decaying oscillatory nature in the case of severe wear, when the mean volumetric wear rate increases with time.

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Section: Introductionmentioning

confidence: 99%

A Fractional Time-Derivative Model for Severe Wear: Hypothesis and Implications

Argatov

2022

Front. Mech. Eng.

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“…Pressure vessels are usually exploited in aggressive environments that may result in general or local corrosion of their parts. General mechanochemical corrosion of elastic or elastic-plastic thin-and thick-walled spherical vessels was modeled, e.g., in the works [6][7][8][9][10]. Pitting corrosion may be initiated by a local damage of a protective coating or an oxide film (which also may possess protective properties), as well as by many other factors which lead to chemical or physical heterogeneity at the metal surface [11,12].…”

Section: Introductionmentioning

confidence: 99%

On local strength of a spherical vessel with pits distributed along the equator

Okulova

Almazova

Sedova

et al. 2022

Frattura Ed Integrità Strutturale

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The effect of multiple shallow corrosion pits on the strength of a spherical vessel subjected to internal pressure is studied. The pits are considered both randomly and evenly distributed along the equator on the outer surface of the vessel. The dependencies of the stress concentration factor on the number of the pits are compared for linearly elastic and elastic-plastic material with hardening. The behavior of the vessels made of elastic and elastoplastic materials turned out to be qualitatively different. The approximation of periodic pits arrangement is discussed.

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Stress Analysis of a Spherical Pressure Vessel with Multiple Notches

Sedova

Okulova

2022

Lecture Notes in Control and Information Sciences - Proceedings

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The thermoelasticity problem for pressure vessels with protective coatings, operating under conditions of mechanochemical corrosion

Cited by 16 publications

References 40 publications

A Fractional Time-Derivative Model for Severe Wear: Hypothesis and Implications

A Fractional Time-Derivative Model for Severe Wear: Hypothesis and Implications

On local strength of a spherical vessel with pits distributed along the equator

Stress Analysis of a Spherical Pressure Vessel with Multiple Notches

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