Results 11 to 20 of about 17,871,941 (289)

High-order methods on mixed-element unstructured meshes for aeronautical applications [PDF]

open access: yes, 2012
Higher resolution and reliability are the desiderata for Computational Fluid Dynamics and main drivers for the development, implementation and validation of highorder accurate methods.
Antoniadis, Antonis F.
core   +7 more sources

Dispersive properties of high order nedelec/edge element approximation of the time-harmonic Maxwell equations [PDF]

open access: yes, 2004
The dispersive behaviour of high-order Næ#169;dæ#169;lec element approximation of the time harmonic Maxwell equations at a prescribed temporal frequency ω on tensor-product meshes of size h is analysed.
Ainsworth, Mark
core   +4 more sources

Finite element analysis of fatigue damage of composite laminated structures [PDF]

open access: yes, 2002
Composite materials are increasingly believed to be the materials of the future with potential for application in high perfon-nance structures. One of the reasons for that is the indication that composite materials have a rather good rating with regard
Hegaze, Moutaz Mohamed Ebrahim
core   +7 more sources

A higher order triangular plate finite element using Airy functions

open access: yesAdvances in Mechanical Engineering, 2020
The present paper describes the formulation of a new moderately thick plate bending triangular finite element based on Mindlin–Reissner plate theory. It is called a Great Triangular Moderately Thick Plate Finite Element, or GTMTPFE.
Mohammed Himeur   +2 more
doaj   +1 more source

A Higher Order B-Splines 1-D Finite Element Analysis of Lossy Dispersive Inhomogeneous Planar Layers [PDF]

open access: yesAUT Journal of Electrical Engineering, 2017
In this paper we propose an accurate and fast numerical method to obtain scattering fields from lossy dispersive inhomogeneous planar layers for both TE and TM polarizations. A new method is introduced to analyze lossy Inhomogeneous Planar Layers.
A. Hatamkhani, A. Ghorbani
doaj   +1 more source

Dispersion Characteristics and Applications of Higher Order Isosceles Triangular Meshes in the Finite Element Method

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
Mesh division plays an important role in applications of the finite element method (FEM). The proposed research shows that under the same order, the equilateral triangular meshes have the most uniform dispersion distribution. The isosceles triangles with
Yuhua Niu   +4 more
doaj   +1 more source

Higher‐order MITC general shell elements [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering, 1993
AbstractTwo mixed‐interpolated general shell finite elements for non‐linear analysis‐a 9‐node element and a 16‐node element‐are presented. The elements are based on the Mixed Interpolation of Tensorial Components (MITC) approach in which the covariant strain component fields for the in‐plane and shear actions are interpolated and tied to the also ...
Bucalem, Miguel Luiz   +1 more
openaire   +2 more sources

Upper bound adaptive finite element method with higher-order element based on Drucker-Prager yield criterion

open access: yesYantu gongcheng xuebao, 2020
An upper bound adaptive finite element method with six-node triangular high-order element, which is based on Drucker-Prager yield criterion, is established. Based on the upper bound theory, the corresponding calculation program is compiled.
SUN Rui , YANG Jun-sheng , ZHAO Yi-ding , YANG Feng
doaj   +1 more source

Data assimilation with higher order finite element interpolants

open access: yesInternational Journal for Numerical Methods in Fluids, 2022
AbstractThe efficiency of a nudging data assimilation algorithm using higher order finite element interpolating operators is studied. Numerical experiments are presented for the 2D Navier–Stokes equations in three cases: shear flow in an annulus, a forced flow in a disk with an off‐center cavity, and a forced flow in a box all satisfying Dirichlet ...
Michael S. Jolly, Ali Pakzad
openaire   +2 more sources

Parallel Matrix-Free Higher-Order Finite Element Solvers for Phase-Field Fracture Problems

open access: yesMathematical and Computational Applications, 2020
Phase-field fracture models lead to variational problems that can be written as a coupled variational equality and inequality system. Numerically, such problems can be treated with Galerkin finite elements and primal-dual active set methods. Specifically,
Daniel Jodlbauer   +2 more
doaj   +1 more source

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