Results 151 to 160 of about 3,825,090 (194)
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Bi-Velocity Phase Field Method
Defect and Diffusion Forum, 2013In this paper we couple the bi-velocity with the phase field method. It deals with: (1) the different mobility of the components in the two-phase zone; (2) nonzero steps of molar volumes for each component from phase to phase and (3) the composition dependent interdiffusion coefficients.
Bartek Wierzba +3 more
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Mapped phase field method for brittle fracture
Computer Methods in Applied Mechanics and Engineering, 2021zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tianju Xue +2 more
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2006
The phase field method (PFM) can be used as an approach to dislocation dynamics simulations alternative to the line DD method discussed in Chapter 10. The degrees of freedom in PFM are continuous smooth fields occupying the entire simulation volume, and dislocations are identified with locations where the field values change rapidly.
Vasily Bulatov, Wei Cai
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The phase field method (PFM) can be used as an approach to dislocation dynamics simulations alternative to the line DD method discussed in Chapter 10. The degrees of freedom in PFM are continuous smooth fields occupying the entire simulation volume, and dislocations are identified with locations where the field values change rapidly.
Vasily Bulatov, Wei Cai
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Magnetic fields mapping with the phase reference method
Magnetic Resonance Imaging, 1999A simple method for imaging the magnetic field produced by arbitrary current distributions is presented. The method is based on the use of a phase reference image and can be easily adapted to any standard magnetic resonance imaging scanner. Examples are given to application to gradient coil characterization and quantitative field measurements.
D, Tomasi, H, Panepucci
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Semisharp Phase Field Method for Quantitative Phase Change Simulations
Physical Review Letters, 2003The standard phase field model for simulation of phase change requires an asymptotic analysis in a vanishing interface width, in order to connect the model parameters to the sharp interface parameters, which has hampered the quantitative usefulness of the method. In this Letter the method is simplified to the point that the relevant reduced problem can
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Coherent Precipitation — Phase Field Method
2005Phase transformation is still the most efficient and effective way to produce various microstructures at mesoscales, and to control their evolution over time. In crystalline solids, phase transformations are usually accompanied by coherency strain generated by lattice misfit between coexisting phases.
C. Shen, Y. Wang
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Nucleation and successive microstructure evolution via phase-field and phase-field crystal method
Journal of Crystal Growth, 2010Abstract It is well known that the mechanical material properties of a material sample after solidification are strongly tied to its microstructure structure. Nevertheless, the precise laws governing the initial stage of this structuring process, i.e.
Robert Prieler +2 more
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Phase Contrast Method for Measuring Ultrasonic Fields
IEEE Transactions on Instrumentation and Measurement, 2006Pulsed acoustic waves in water generated by ultrasonic transducers with power levels in the medical diagnostic range are characterized by analyzing the optical diffraction patterns of short laser pulses due to the pressure waves to be analyzed. The diffracted laser light is filtered in the Fourier plane of an optical system and projected onto a charge ...
E.K. Reichel, B.G. Zagar
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A brief introduction to phase field method
AIP Conference Proceedings, 2010In this tutorial paper we will give a brief introduction of phase field method as a mathematical tool for describing interfaces and their motion. This method was originally developed as a model of solidification, which enabled us to simulate complicated structures like dendritic crystals easily.
Ryo Kobayashi +3 more
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Exploring topological singularities with phase-field methods
The European Physical Journal Plus, 2011We discuss the use of phase-field methods in problems of interface dynamics where topological singularities are relevant. We illustrate our discussion on the case study of centrifugally driven Hele-Shaw flows, where the proposed analysis has been recently tested.
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