Generalised boundary conditions for hydrogen transport at crack tips
TLDR
In this article, a generalised framework for resolving the electrochemistry-diffusion interface and modelling hydrogen transport near a crack tip is presented, where the adsorption and absorption kinetics are captured by means of Neumann-type generalised boundary conditions.About:
This article is published in Corrosion Science.The article was published on 2020-08-15 and is currently open access. It has received 40 citations till now. The article focuses on the topics: Hydrostatic stress & Plasticity.read more
Citations
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Analysis of the influence of microstructural traps on hydrogen assisted fatigue
TL;DR: In this article, the influence of microstructural traps on hydrogen diffusion and embrittlement in the presence of cyclic loads is investigated, and it is shown that increasing the density of "beneficial traps" is a viable strategy in designing alloys resistant to hydrogen assisted fatigue for both closed and open-systems.
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Applications of phase field fracture in modelling hydrogen assisted failures
TL;DR: The potential of phase field-based multi-physics models in transforming the engineering assessment and design of structural components in hydrogen-containing environments is demonstrated and a theoretical and numerical framework coupling deformation, diffusion and fracture, which accounts for inertia effects is presented.
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A mechanism-based multi-trap phase field model for hydrogen assisted fracture
TL;DR: A new mechanistic, phase field-based formulation for predicting hydrogen embrittlement incorporates, for the first time, a Taylor-based dislocation model to resolve the mechanics of crack tip deformation.
Posted Content
Analysis of the influence of microstructural traps on hydrogen assisted fatigue
TL;DR: In this article, the influence of microstructural traps on hydrogen diffusion and embrittlement in the presence of cyclic loads is investigated, and it is shown that increasing the density of "beneficial traps" is a viable strategy in designing alloys resistant to hydrogen assisted fatigue for both closed and open-systems.
Journal ArticleDOI
A phase field model for hydrogen-assisted fatigue
TL;DR: In this article , a new theoretical and numerical phase field-based formulation for predicting hydrogen-assisted fatigue is presented, which enables predicting fatigue crack nucleation and growth for arbitrary loading patterns and specimen geometries.
References
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Book
Modern Aspects of Electrochemistry
TL;DR: In this paper, the authors focus on topics at the forefront of electrochemical research, such as splitting water by electrolysis, splitting water with visible light, and the recent development of lithium batteries.
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Indentation size effects in crystalline materials: A law for strain gradient plasticity
William D. Nix,Huajian Gao +1 more
TL;DR: In this article, the indentation size effect for crystalline materials can be accurately modeled using the concept of geometrically necessary dislocations, which leads to the following characteristic form for the depth dependence of the hardness: H H 0 1+ h ∗ h where H is the hardness for a given depth of indentation, h, H 0 is a characteristic length that depends on the shape of the indenter, the shear modulus and H 0.
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The deformation of plastically non-homogeneous materials
TL;DR: The geometrically necessary dislocations as discussed by the authors were introduced to distinguish them from the statistically storages in pure crystals during straining and are responsible for the normal 3-stage hardening.
Journal ArticleDOI
Strain gradient plasticity: Theory and experiment
TL;DR: In this paper, a deformation theory of plasticity is introduced to represent in a phenomenological manner the relative roles of strain hardening and strain gradient hardening, which is a non-linear generalization of Cosserat couple stress theory.