Results 61 to 70 of about 924,944 (328)

Finite-Difference Time-Domain Study of Guided Modes in Nano-plasmonic Waveguides

, 2007
A conformal dispersive finite-difference time-domain (FDTD) method is developed for the study of one-dimensional (1-D) plasmonic waveguides formed by an array of periodic infinite-long silver cylinders at optical frequencies.
Hao, Yang, Zhao, Yan
core   +2 more sources

Nondiffractive sonic crystals [PDF]

, 2006
We predict theoretically the nondiffractive propagation of sonic waves in periodic acoustic media (sonic crystals), by expansion into a set of plane waves (Bloch mode expansion), and by finite difference time domain calculations of finite beams.
A. Imhof, D. Chigrin, Isabel Pérez-Arjona, Javier Redondo, Kestutis Staliunas, M. Torres, Víctor Espinosa, Víctor J. Sánchez-Morcillo   +7 more
core   +2 more sources

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Phenomenological and Physically Based Modeling of Flow Stress and Strengthening Mechanism of Inconel 718

Advanced Engineering Materials, EarlyView.
Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein, Oliver Schenk, Christoph Broeckmann   +2 more
wiley   +1 more source

Iteration-Based Temporal Subgridding Method for the Finite-Difference Time-Domain Algorithm

Mathematics
A novel temporal subgridding technique is proposed for the finite-difference time-domain (FDTD) method to solve two-dimensional Maxwell’s equations of electrodynamics in the TEz mode.
Penglong Xu, Jinjie Liu
doaj   +1 more source

Using WCS-FDTD Method to Study the Plasma Frequency Selective Surface

IEEE Access, 2019
The plasma is very useful to design the dynamically tunable Frequency Selective Surface (FSS) because of its tunable property. But it is difficult to simulate the plasma FSS by using the conventional finite-difference time-domain (FDTD) method, because ...
Juan Chen, Jing Tan, Xumin Yu, Hongyu Shi   +3 more
doaj   +1 more source

The impact of different corona models on FD algorithms for the solution of multiconductor transmission lines equations

High Voltage, 2021
In this study, the implementation of different corona discharge models in a transient program for overhead multiconductor lines based on the implicit Crank‐Nicolson Finite Difference Time Domain method is presented.
Erika Stracqualursi, Rodolfo Araneo, Amedeo Andreotti   +2 more
doaj   +1 more source

Optimized 3D Finite-Difference-Time-Domain Algorithm to Model the Plasmonic Properties of Metal Nanoparticles with Near-Unity Accuracy

Chemosensors, 2021
The finite difference time domain (FDTD) method is a grid-based, robust, and straightforward method to model the optical properties of metal nanoparticles (MNPs).
Mehran Rafiee, Subhash Chandra, Hind Ahmed, Sarah J. McCormack   +3 more
doaj   +1 more source

Retrieving nonlinear refractive index of nanocomposites using finite-difference time-domain simulations

, 2018
In this Letter, it is proposed a method which utilizes three-dimensional finite-difference time-domain (FDTD) simulations of light propagation for restoring the effective Kerr nonlinearity of nanocomposite media.
Panov, Andrey V.
core   +1 more source

A novel finite-difference time-domain wave propagator

IEEE Transactions on Antennas and Propagation, 2000
A novel time-domain wave propagator is introduced. A two-dimensional (2-D) finite-difference time-domain (FDTD) algorithm is used to analyze ground wave propagation characteristics. Assuming an azimuthal symmetry, surface, and/or elevated ducts are represented via transverse and/or longitudinal refractivity and boundary perturbations in 2-D space.
Akleman, F, Sevgi, L
openaire   +3 more sources