Results 11 to 20 of about 372,861 (293)

Finite element method for a nonlinear problem

open access: yesComputer Assisted Methods in Engineering and Science, 2023
We consider the nonlinear eigenvalue problem of a nonlinear partial differential equation under Dirichlet boundary condition in a two-dimensional space. The classical solutions are given for rectangular domains.
Gabriella Bognar
doaj  

A FEM-Green Approach for Magnetic Field Problems with Open Boundaries

open access: yesMathematics, 2021
A new finite element method/boundary element method (FEM/BEM) scheme is proposed for the solution of the 2D magnetic static and quasi-static problems with unbounded domains. The novelty is an original approach in the treatment of the outer region.
Jacques Lobry
doaj   +1 more source

A Godunov-Mixed Finite Element Method on Changing Meshes for the Nonlinear Sobolev Equations

open access: yesAbstract and Applied Analysis, 2012
A Godunov-mixed finite element method on changing meshes is presented to simulate the nonlinear Sobolev equations. The convection term of the nonlinear Sobolev equations is approximated by a Godunov-type procedure and the diffusion term by an expanded ...
Tongjun Sun
doaj   +1 more source

Nonlinear Stiffness Modeling Method for a Collaborative Robot

open access: yesJixie chuandong, 2021
A nonlinear stiffness modeling method for collaborative robots(Cobots) is proposed, which is combine the finite element analysis method (FEA) with the virtual joint method (VJM).
Song Wang   +4 more
doaj  

A finite point algorithm for soil water-salt movement equation

open access: yesAdvances in Difference Equations, 2021
In this paper, we propose the meshless finite point method for solving a type of fluid flow problem. The moving least square function is combined with the collocation method to treat nonlinear one- and two-dimensional soil water-salt movement equations ...
Fenhong Li   +3 more
doaj   +1 more source

New finite modelling of the nonlinear static bending analysis of piezoelectric FG sandwich plates resting on nonlinear elastic foundations

open access: yesComptes Rendus. Mécanique, 2022
This paper presents a new finite modelling of the nonlinear static bending analysis of piezoelectric functionally graded (FG) sandwich plates resting on nonlinear elastic foundations. Finite element formulations are derived by using the first-order shear
Giang, Nguyen Thi, Phuong, Doan Lan
doaj   +1 more source

Finite element method for solving nonlinear inverse diffusion problem

open access: yesپژوهش‌های ریاضی, 2021
In this paper, a numerical method based on the finite element method and the least square scheme with the Tikhonov regularization method for nonlinear inverse diffusion problem is presented.
Hamed Zeidabadi   +2 more
doaj  

Performance Evaluation of Nonlinear Viscoelastic Materials using Finite Element Method

open access: yesInternational Journal of Applied Mechanics and Engineering
This research paper applies the finite element method as a methodology to evaluate the structural performance of nonlinear viscoelastic solids. A finite element algorithm was built and developed to simulate the mathematical nonlinear viscoelastic ...
Laith Sabri   +5 more
doaj   +1 more source

Finite Element Method for a Nonlinear Differential Equation Describing Crystal Surface Growth

open access: yesMathematical Modelling and Analysis, 2014
In this paper, for a nonlinear differential equation describing crystal surface growth, the finite element method is presented. A nice order error estimates is derived by means of a finite element projection approximation.
Xiaopeng Zhao, Fengnan Liu, Bo Liu
doaj   +1 more source

Analysis of a Darcy-Cahn-Hilliard Diffuse Interface Model for the Hele-Shaw Flow and its Fully Discrete Finite Element Approximation

open access: yes, 2013
In this paper we present PDE and finite element analyses for a system of partial differential equations (PDEs) consisting of the Darcy equation and the Cahn-Hilliard equation, which arises as a diffuse interface model for the two phase Hele-Shaw flow. We
G., Steven Wise, Xiaobing Feng
core   +1 more source

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