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The Improved Element-Free Galerkin Method for 3D Helmholtz Equations [PDF]

open access: yesMathematics, 2021
The improved element-free Galerkin (IEFG) method is proposed in this paper for solving 3D Helmholtz equations. The improved moving least-squares (IMLS) approximation is used to establish the trial function, and the penalty technique is used to enforce ...
Heng Cheng, Miaojuan Peng
doaj   +2 more sources

A comparison between the improved element-free Galerkin method and the element-free Galerkin method for 2D potential and elasticity problems

open access: yesComputer Assisted Methods in Engineering and Science, 2017
In this paper, a comparison between the improved element-free Galerkin (IEFG) method, based on the improved moving least square (IMLS) approximation, and the element-free Galerkin (EFG) method, based on the moving least square (MLS) approximation, is ...
Imen Debbabi   +2 more
doaj   +2 more sources

Improved complex variable element-free Galerkin method for viscoelasticity problems [PDF]

open access: yesActa Physica Sinica, 2014
In this paper, based on the improved complex variable least-square (ICVMLS) approximation, the improved complex variable element-free Galerkin (ICVEFG) method for two-dimensional viscoelasticity problems is proposed. The ICVMLS approximation is used to form the shape function, the Galerkin weak form is used to obtain the system equations, and the ...
null Peng Miao-Juan, null Liu Qian
  +5 more sources

An improved interpolating element-free Galerkin method for elasticity [PDF]

open access: yesChinese Physics B, 2013
Based on the improved interpolating moving least-squares (IIMLS) method and the Galerkin weak form, an improved interpolating element-free Galerkin (IIEFG) method is presented for two-dimensional elasticity problems in this paper. Compared with the interpolating moving least-squares (IMLS) method presented by Lancaster, the IIMLS method uses the ...
Feng-Xin Sun, Ju-Feng Wang, Yu-Min Cheng
  +5 more sources

The Improved Element-Free Galerkin Method for 3D Steady Convection-Diffusion-Reaction Problems with Variable Coefficients

open access: yesMathematics, 2023
In order to obtain the numerical results of 3D convection-diffusion-reaction problems with variable coefficients efficiently, we select the improved element-free Galerkin (IEFG) method instead of the traditional element-free Galerkin (EFG) method by ...
Heng Cheng, Zebin Xing, Yan Liu
doaj   +1 more source

On Interpolative Meshless Analysis of Orthotropic Elasticity

open access: yesBuildings, 2023
As one possible alternative to the finite element method, the interpolation characteristic is a key property that meshless shape functions aspire to. Meanwhile, the interpolation meshless method can directly impose essential boundary conditions, which is
You-Yun Zou   +4 more
doaj   +1 more source

A Hybrid Interpolating Meshless Method for 3D Advection–Diffusion Problems

open access: yesMathematics, 2022
A hybrid interpolating meshless (HIM) method is established for dealing with three-dimensional (3D) advection–diffusion equations. To improve computational efficiency, a 3D equation is changed into correlative two-dimensional (2D) equations. The improved
Zhijuan Meng, Xiaofei Chi, Lidong Ma
doaj   +1 more source

A Dimension Splitting Generalized Interpolating Element-Free Galerkin Method for the Singularly Perturbed Steady Convection–Diffusion–Reaction Problems

open access: yesMathematics, 2021
By introducing the dimension splitting method (DSM) into the generalized element-free Galerkin (GEFG) method, a dimension splitting generalized interpolating element-free Galerkin (DS-GIEFG) method is presented for analyzing the numerical solutions of ...
Fengxin Sun   +3 more
doaj   +1 more source

Analysis of Elastic–Plastic Problems Using the Improved Interpolating Complex Variable Element Free Galerkin Method

open access: yesMathematics, 2021
A numerical model for the two-dimensional nonlinear elastic–plastic problem is proposed based on the improved interpolating complex variable element free Galerkin (IICVEFG) method and the incremental tangent stiffness matrix method.
Yajie Deng   +3 more
doaj   +1 more source

Analyzing Three-Dimensional Laplace Equations Using the Dimension Coupling Method

open access: yesMathematics, 2023
Due to the low computational efficiency of the Improved Element-Free Galerkin (IEFG) method, efficiently solving three-dimensional (3D) Laplace problems using meshless methods has been a longstanding research direction.
Fengbin Liu   +3 more
doaj   +1 more source

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