Results 61 to 70 of about 2,229,610 (296)

Determining ultrasonic propagation effective properties in complex heterogeneous media through microstructure-scale simulation

Research and Review Journal of Nondestructive Testing, 2023
Ray-based methods allow for fast computations of ultrasonic propagation in large components, and can be coupled with diffraction models to provide full simulations of NDE inspections.
Vincent Dorval, Nicolas Leymarie, Alexandre Imperiale, Edouard Demaldent, Zakaria Aghenzour, Pierre-Emile Lhuillier   +5 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Machine learning rather than trial and error to close morphodynamical tuneable parameters: Application to a two-phase/two-layer model

Journal of Hydroinformatics
Physics-based numerical models often depend on several parameters to close. Some of them can be expressed using established theoretical or empirical closure formulations.
Robin Meurice, Sandra Soares-Frazão
doaj   +1 more source

Simulação numerica de sistemas gasosos em reatores tubulares utilizando o metodo de volumes finitos [PDF]

, 1996
Tese (mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoNos reatores tubulares reais, o perfil de velocidade, temperatura e concentração não são uniformes ao longo da seção transversal à direção do escoamento, sendo necessária a ...
Silva, Adriano da
core  

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

ADAPTIVE WAVELET SCHEMES AND FINITE VOLUMES

, 2020
We consider a procedure for combining high order finite volumes and tree-based non-uniform grids. Especially, we focus on efficient algorithms for third order multidimensional volume interpolation and communication between levels of refinement.
Deriaz, Erwan, Rigal, Mathieu, Sarto, Daniele, Lhébrard, Xavier   +3 more
core   +2 more sources

Finite volume effects near the chiral crossover [PDF]

EPJ Web of Conferences
The effect of a finite volume presents itself both in heavy ion experiments as well as in recent model calculations. The magnitude is sensitive to the proximity of a nearby critical point.
Kara Ruben, Borsányi Szabolcs, Fodor Zoltán, Guenther Jana N., Parotto Paolo, Pásztor Attila, Wong C. H.   +6 more
doaj   +1 more source

Simulação transiente das equações de Aguas Rasas pelo metodo dos volumes finitos [PDF]

, 1997
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoEste trabalho apresenta uma metodologia em Volumes Finitos para a solução de problemas envolvendo escoamentos em corpos de águas rasas.
Bortolon, Helio Carlos
core  

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

The finite-volume method in computational rheology [PDF]

, 2012
The finite volume method (FVM) is widely used in traditional computational fluid dynamics (CFD), and many commercial CFD codes are based on this technique which is typically less demanding in computational resources than finite element methods (FEM ...
Pinho, F.T., Afonso, A.M., Oliveira, P.J., Oliveira, Monica, Alves, M.A.   +4 more
core   +2 more sources