Results 91 to 100 of about 954,008 (282)

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

Advanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer, Leonhard Holländer, André Langohr, Hans Jürgen Maier   +3 more
wiley   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Research advance of numerical simulation methods for sand production prediction of unconsolidated sandstone

Frontiers in Energy Research, 2023
Haiheng Sun, Haiheng Sun, Guofa Ji, Guofa Ji, Zhiqi Liu, Zhiqi Liu, Dewen Huang, Dewen Huang   +7 more
doaj   +1 more source

Discrete element method simulation of a twin screw wet granulator [PDF]

EPJ Web of Conferences
Granulation is a method of particle size enlargement via agglomeration of primary particles to form larger particles. In a Twin Screw Wet Granulator (TSWG), a binder liquid is sprayed onto the surfaces of active pharmaceutical ingredient particles to ...
Iyer Kiran, Wang Yu, Esteghamatian Amir, Meyer Ewald Jonathan, Doshi Pankaj, Wee Chuan Lim Eldin   +5 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

PyCompact: An integrated workflow for discrete element method–multi-particle finite element method for powder compaction simulation

SoftwareX
This study introduces an integrated workflow for simulating powder compaction through a hybrid discrete element method (DEM) and multi-particle finite element method (MPFEM) approach. PyCompact, by integrating FreeCAD, LIGGGHTS, ParaView, LS-PrePost, and
Majid Mohammadhosseinzadeh, Hossein Ghorbani-Menghari, Ji Hoon Kim   +2 more
doaj   +1 more source

Mechanics of binary crushable granular assembly through discrete element method

Nuclear Materials and Energy, 2016
The mechanical response of a granular system is not only influenced by the bulk material properties but also on various factors due to it’s discrete nature.
Raghuram Karthik Desu, Yixiang Gan, Marc Kamlah, Ratna Kumar Annabattula   +3 more
doaj   +1 more source

Discrete Quantum Gravity

, 2011
We discuss the causal set approach to discrete quantum gravity. We begin by describing a classical sequential growth process in which the universe grows one element at a time in discrete steps.
Gudder, Stan
core  

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Application of Discrete Element Methods to the Problem of Rock Bumps

Acta Polytechnica, 2002
This paper is a continuation of a previous paper by the authors. Applications of two discrete element methods (DEM) to several fields of geotechnics are discussed.
P. P. Procházka, M. G. Kugblenu
doaj