Results 31 to 40 of about 14,649,018 (327)

The finite element method with penalty [PDF]

open access: yesMathematics of Computation, 1973
An application of the penalty method to the finite element method is analyzed. For a model Poisson equation with homogeneous Dirichlet boundary conditions, a variational principle with penalty is discussed. This principle leads to the solution of the Poisson equation by using functions that do not satisfy the boundary condition. The rate of convergence
openaire   +1 more source

Dilaceration: 3D analysis using finite element method [PDF]

open access: yesIranian Journal of Orthodontics, 2007
Aim: Bent root forms are always a challenging point in an orthodontic treatment. The main aim of this study has been to assess the stress effects of a dilaceration in apical third of an upper central incisor in orthodontic movement.Materials and Methods:
Allahyar Geramy, Hannane Ghadirian
doaj   +1 more source

Dynamic Damage Quantification of Slab Tracks—Finite Element Models on Winkler Soil and Finite-Element Boundary-Element Models on Continuous Soil

open access: yesCivilEng, 2022
Train passages over intact or damaged slab tracks on different soils were calculated by two methods. The finite element method (FEM) uses a Winkler soil under the track model by adding a thin “soil layer”.
Lutz Auersch, Jiaojiao Song
doaj   +1 more source

A Nodal Immersed Finite Element-Finite Difference Method

open access: yesSSRN Electronic Journal, 2022
The immersed finite element-finite difference (IFED) method is a computational approach to modeling interactions between a fluid and an immersed structure. The IFED method uses a finite element (FE) method to approximate the stresses, forces, and structural deformations on a structural mesh and a finite difference (FD) method to approximate the ...
David R. Wells   +3 more
openaire   +5 more sources

Object oriented multi-scale hp-adaptive finite element method [PDF]

open access: yesComputer Methods in Materials Science, 2009
This paper presents an object-oriented (O-O) project of the hp-adaptive Finite Element Method (hp-FEM) code, supporting multi-scale computations.
Piotr Gurgul   +2 more
doaj   +1 more source

Crownwall Failure Analysis through Finite Element Method

open access: yesJournal of Marine Science and Engineering, 2020
Several failures of recurved concrete crownwalls have been observed in recent years. This work aims to get a better insight within the processes underlying the loading phase of these structures due to non-breaking wave impulsive loading conditions and to
Dimitrios Dermentzoglou   +5 more
doaj   +1 more source

High-Accuracy Finite Element Method: Benchmark Calculations

open access: yesEPJ Web of Conferences, 2018
We describe a new high-accuracy finite element scheme with simplex elements for solving the elliptic boundary-value problems and show its efficiency on benchmark solutions of the Helmholtz equation for the triangle membrane and hypercube.
Gusev Alexander   +7 more
doaj   +1 more source

Automating the Finite Element Method [PDF]

open access: yesArchives of Computational Methods in Engineering, 2007
The finite element method can be viewed as a machine that automates the discretization of differential equations, taking as input a variational problem, a finite element and a mesh, and producing as output a system of discrete equations. However, the generality of the framework provided by the finite element method is seldom reflected in ...
openaire   +2 more sources

Finite element method using vector finite elements applied to eddy current problems [PDF]

open access: yes, 2011
Vector fields found in electromagnetics are fundamentally different to vector fields found in other research areas such as structural mechanics. Electromagnetic vector fields possess different physical behaviour patterns and different properties in ...
Adams, Leila
core   +1 more source

Formulated alpha finite element method with deviatoric / volumetric split for highly precise deformation calculation by using three dimensional tetrahedral element (In case of infinitesimal isotropic elasticity)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
This paper presents a novel Formulated Alpha FEM with deviatoric / volumetric split, which is combination of standard FEM and Node-based Smoothed FEM (NS-FEM), to compute highly accurate deformation in mechanical problems using tetrahedral elements.
Masaki FUJIKAWA   +5 more
doaj   +1 more source

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