Results 21 to 30 of about 3,137,706 (214)

Phase-field simulation of ductile fracture in shell structures

, 2021
In this paper, a computational framework for simulating ductile fracture in multipatch shell structures is presented. A ductile fracture phase-field model at finite strains is combined with an isogeometric Kirchhoff–Love shell formulation.
D. Proserpio, M. Ambati, L. Lorenzis, J. Kiendl   +3 more
semanticscholar   +1 more source

High-Throughput Screening of Optimal Process Parameters for PVD TiN Coatings With Best Properties Through a Combination of 3-D Quantitative Phase-Field Simulation and Hierarchical Multi-Objective Optimization Strategy

Frontiers in Materials, 2022
Physical vapor deposition (PVD) is one of the most important techniques for coating fabrication. With the traditional trial-and-error approach, it is labor-intensive and challenging to determine the optimal process parameters for PVD coatings with best ...
Rao Dai, Shenglan Yang, Tongdi Zhang, Jing Zhong, Li Chen, Chunming Deng, Lijun Zhang   +6 more
doaj   +1 more source

Phase field simulations in miscibility gaps [PDF]

Calphad, 2009
Abstract Using phase field simulations, it is possible to simulate the dynamics and morphology of immiscible liquids/solids appearing at the miscibility gap of any system. These simulations may also be used to determine the asymptotic compositions of the fluids for a given Gibbs energy.
Maria Helena Sousa Soares de Oliveira Braga, Joana Cassilda Rodrigues Espain de Oliveira, Luís Filipe Malheiros de Freitas Ferreira, J. A. Ferreira   +3 more
openaire   +2 more sources

Microstructure analyses and phase-field simulation of partially divorced eutectic solidification in hypoeutectic Mg-Al Alloys

, 2021
In this study the partially divorced eutectic microstructure of α-Mg and β-Mg17Al12 was investigated by electron backscatter diffraction, transmission electron microscopy, and phase-field modeling in hypoeutectic Mg-Al alloys.
Joo-Hee Kang, Jiwon Park, Kyung-Min Song, C. Oh, O. Shchyglo, I. Steinbach   +5 more
semanticscholar   +1 more source

3D non-isothermal phase-field simulation of microstructure evolution during selective laser sintering [PDF]

npj Computational Materials, 2019
During selective laser sintering (SLS), the microstructure evolution and local temperature variation interact mutually. Application of conventional isothermal sintering model is thereby insufficient to describe SLS.
Yangyiwei Yang, Olav Ragnvaldsen, Yang Bai, M. Yi, Bai-Xiang Xu   +4 more
semanticscholar   +1 more source

DMC-TPE: tree-structured Parzen estimator-based efficient data assimilation method for phase-field simulation of solid-state sintering

Science and Technology of Advanced Materials: Methods, 2023
In phase-field simulations, accurate material parameters are required to quantitatively predict microstructural evolutions. Non-sequential data assimilations enable the estimation of unknown material parameters by minimizing a cost function that ...
Akimitsu Ishii, Akiyasu Yamamoto, Akinori Yamanaka   +2 more
doaj   +1 more source

Study on the mechanism of carbide precipitation by surface quenching treatment on GCr15 bearing rings based on the phase-field method

Frontiers in Materials, 2022
In this paper, the thermodynamics database describing Gibbs free energy of FCC phase and M23C6 phase based on Fe-Cr-C ternary alloy was coupled into phase field simulation, and the phase field model was developed on the mesoscopic scale which simulates ...
Qian Liu, Jiaxuan Jiang, Ming Chen, Xiaohu Deng, Jiangang Wang, Dongying Ju   +5 more
doaj   +1 more source

Domain evolution in bended freestanding BaTiO3 ultrathin films: A phase-field simulation [PDF]

, 2020
Perovskite ferroelectric oxides are usually considered to be brittle materials, however, recent work [Dong et al., Science 366, 475 (2019)] demonstrated the super-elasticity in the freestanding BaTiO3 thin films.
Changqing Guo, G. Dong, Ziyao Zhou, Ming Liu, Houbing Huang, Jiawang Hong, Xueyun Wang   +6 more
semanticscholar   +1 more source

Phase field simulation of liquid-solid-eutectoid multiple phase transformations of a Fe-C binary alloy

China Foundry, 2020
A new continuous multi-phase transformation field model was established for liquid-solid-eutectoid transformation. Taking Fe-C alloy as an example, the model was used to simulate the evolution of the micromorphology of the liquid-solid phase transition ...
Li Feng, Jun-he Zhong, Chang-sheng Zhu
doaj   +1 more source

A Soluble Phase Field Model [PDF]

, 1997
The kinetics of an initially undercooled solid-liquid melt is studied by means of a generalized Phase Field model, which describes the dynamics of an ordering non-conserved field phi (e.g.
A. Coniglio, A.J. Bray, Andrea Crisanti, D.B. Abraham, Giulia Iori, H. Müller-Krumbahaar, H.E. Stanley, J. Weeks, J.B. Collins, J.D. Gunton, J.S. Langer, J.W. Cahn, M. Conti, O. Penrose, P. Hohenberg, P. Keblinski, R. Glauber, R. Kupferman, S. Ciuchi, S.L. Wang, T.H. Berlin, U. Marini Bettolo Marconi, U. Marini Bettolo Marconi, U. Marini Bettolo Marconi, Umberto Marini Bettolo Marconi, W.L. Mullins   +25 more
core   +2 more sources