Results 1 to 10 of about 1,345,433 (169)
Metals, 2022 This study proposes a hydrogen-assisted fracture analysis methodology considering associated deformation and hydrogen transport inside a phase-field-based formulation. First, the hydrogen transport around a crack tip is calculated, and then the effect of
Yunlong Li, Keshi Zhang
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Frontiers in Physics, 2023 The paper proposed a novel framework for efficient simulation of crack propagation in brittle materials. In the present work, the phase field represents the sharp crack surface with a diffuse fracture zone and captures the crack path implicitly.
Haojie Lian +4 more
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Sharp Phase Field Method [PDF]
Physical Review Letters, 2018 Phase field modelling offers an extremely general framework to predict microstructural evolutions in complex systems. However, its computational implementation requires a discretisation scheme with a grid spacing small enough to preserve the continuous character of the theory. We present here a new formulation, which is intrinsically discrete, in which
Finel, Alphonse +5 more
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Corners in phase-field theory [PDF]
Physical Review E, 2021 Phase-field models for strongly anisotropic surface energy need to be regularized to remove the ill posedness of the dynamic equations. Regularization introduces a new length scale, the corner size, also called the bending length. For large corner size, with respect to interface thickness, the phase-field method is known to converge asymptotically ...
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Frontiers in Materials, 2022 Antiphase boundaries (APBs) of L12 ordered γ′-Co3 (Al, W) precipitates have an essential effect on the high-temperature strength of Co-based monocrystal superalloys. In this work, the antiphase boundaries and their effects on the evolution kinetics of γ′
Yinfei Ju +11 more
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Soluble phase field model [PDF]
Physical Review E, 1997 13 pages, 8 figures, RevTeX 3.1, submitted to Physical Review ...
U. MARINI BETTOLO MARCONI +2 more
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Stress-dependent dislocation core structures leading to non-Schmid behavior
Materials Research Letters, 2021 The stress-dependent core structures of dislocations for basal slip in magnesium are calculated using ab initio generalized stacking fault energy surface and microscopic phase-field method. The dissociation of dislocation cores exhibits the dependence on
Di Qiu +3 more
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Simulating Diffusion Induced Grain Boundary Migration in Binary Fe–Zn
Metals, 2022 A recently developed phase-field model for simulating diffusion-induced grain boundary migration (DIGM) is applied to binary Fe–Zn. The driving force for the boundary migration is assumed to come from the coherency strain energy mechanism suggested by ...
Deepjyoti Mukherjee +2 more
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, 2023 This open access textbook fills a gap, in that it introduces readers to the theory and applications of the Phase-Field technique. Phase Field, over the years, has emerged as a standard tool for materials research, just as the Finite-Element technique has in structure mechanics.
Steinbach, Ingo, Salama, Hesham
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Frontiers in Materials, 2022 In this work, we propose an efficient numerical method to study the effects of microstructures on the effective diffusion coefficient of the diffusion component in materials. We take the diffusion of hydrogen (H) atoms in porous polycrystalline tungsten (
Bingchen Li +13 more
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