Application of the finite-elements methods to the optimization of flange joints

1995 ◽  
Vol 31 (5) ◽  
pp. 265-269
Author(s):  
V. M. Bogomol'nyi ◽  
Yu. A. Ivanov
Keyword(s):  
Finite Elements ◽  
Finite Elements Methods

A Discretization Scheme for a Quasi-Hydrodynamic Semiconductor Model

1997 ◽  
Vol 07 (07) ◽  
pp. 935-955 ◽  
Author(s):  
Ansgar Jüngel ◽  
Paola Pietra
Keyword(s):  
Finite Elements ◽  
Mixed Finite Elements ◽  
Exponential Fitting ◽  
Discretization Scheme ◽  
Drift Diffusion Model ◽  
Drift Diffusion ◽  
Current Conservation ◽  
Numerical Tests ◽  
Finite Elements Methods ◽  
Degenerate Type

A discretization scheme based on exponential fitting mixed finite elements is developed for the quasi-hydrodynamic (or nonlinear drift–diffusion) model for semiconductors. The diffusion terms are nonlinear and of degenerate type. The presented two-dimensional scheme maintains the good features already shown by the mixed finite elements methods in the discretization of the standard isothermal drift–diffusion equations (mainly, current conservation and good approximation of sharp shapes). Moreover, it deals with the possible formation of vacuum sets. Several numerical tests show the robustness of the method and illustrate the most important novelties of the model.

Finite Elements Methods in Mechanics

2014 ◽  
Author(s):  
M. Reza Eslami
Keyword(s):  
Finite Elements ◽  
Finite Elements Methods

Finite Elements Methods via Tensors

1972 ◽  
Author(s):  
Hayrettin Kardestuncer
Keyword(s):  
Finite Elements ◽  
Finite Elements Methods

scholarly journals Calculation of Rail Internal Impedance by Using Finite Elements Methods and Complex Magnetic Permeability

2009 ◽  
Vol 2009 ◽  
pp. 1-10 ◽  
Author(s):  
Alberto Dolara ◽  
Sonia Leva
Keyword(s):  
Finite Elements ◽  
Magnetic Permeability ◽  
Magnetization Curve ◽  
Analytical Models ◽  
Internal Parameter ◽  
Internal Inductance ◽  
Internal Impedance ◽  
Normal Magnetization ◽  
Complex Magnetic Permeability ◽  
Finite Elements Methods

The internal parameter of UNI 60 rail is calculated by using finite elements methods. Steel's characterizations by its normal magnetization curve and by complex magnetic permeability are here considered and included into the proposed FEM models. Rail's resistance and internal inductance in function of current and frequency are calculated using both FEM and analytical models. The results obtained at the frequency of 50 Hz are compared with few measurements available, and then they are extended to other frequencies.

MATHEMATICAL MODELING OF WAVEGUIDING SYSTEMS USING FINITE-DIFFERENCES AND FINITE-ELEMENTS METHODS

2013 ◽  
Vol 2 (1) ◽  
pp. 10-17
Author(s):  
A.N. Bogolyubov ◽  
◽  
N.A. Bogolyubov ◽  
A.G. Sveshnikov ◽  
◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Finite Elements ◽  
Finite Differences ◽  
Finite Elements Methods

scholarly journals Finite elements methods for solving viscoelastic thin plates

1984 ◽  
Vol 29 (2) ◽  
pp. 81-103
Author(s):  
Helena Růžičková ◽  
Alexander Ženíšek
Keyword(s):  
Finite Elements ◽  
Thin Plates ◽  
Finite Elements Methods
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