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Main Title: Application of micropolar theory to the description of the skin effect due to hydrogen saturation
Author(s): Frolova, Ksenia
Vilchevskaya, Elena
Bessonov, Nikolay
Müller, Wolfgang
Polyanskiy, Vladimir
Yakovlev, Yuriy
Type: Article
Abstract: A model is proposed for the description of a highly inhomogeneous distribution of hydrogen within a saturated metal specimen (the so-called skin effect due to hydrogen saturation). The model is based on the micropolar continuum approach and results in a nonuniform stress–strain state of a cylindrical metal specimen due to distributed couples or microrotations. The dependence of the diffusion coefficient on the strain energy is considered in order to model stress-induced diffusion. Accumulation of hydrogen within a thin boundary layer results in a highly nonuniform distribution of hydrogen across the specimen. The mutual influence of the stress–strain state and hydrogen accumulation is taken into account. The estimated thickness of the surface layer containing hydrogen is comparable to the thickness observed in experiments. The predicted average concentration coincides with experimental data.
Subject(s): micropolar continuum
stress-induced diffusion
skin effect
size effect
hydrogen accumulation
Issue Date: 1-Jun-2022
Date Available: 10-May-2022
Language Code: en
DDC Class: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Journal Title: Mathematics and Mechanics of Solids
Publisher: Sage
Volume: 27
Issue: 6
Publisher DOI: 10.1177/10812865211059223
Page Start: 1092
Page End: 1110
EISSN: 1741-3028
ISSN: 1081-2865
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabenden aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
TU Affiliation(s): Fak. 5 Verkehrs- und Maschinensysteme » Inst. Mechanik » FG Kontinuumsmechanik und Materialtheorie
Appears in Collections:Technische Universität Berlin » Publications

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