Localized collocation schemes and their applications

Z Fu, Z Tang, Q Xi, Q Liu, Y Gu, F Wang - Acta Mechanica Sinica, 2022 - Springer
This paper presents a summary of various localized collocation schemes and their
engineering applications. The basic concepts of localized collocation methods (LCMs) are …

Analysis of transient wave propagation dynamics using the enriched finite element method with interpolation cover functions

Y Chai, W Li, Z Liu - Applied Mathematics and Computation, 2022 - Elsevier
To improve the performance of the low-order linear triangular element for solving transient
wave propagation problems, this paper presents a novel enriched finite element method …

Numerical investigation of the element-free Galerkin method (EFGM) with appropriate temporal discretization techniques for transient wave propagation problems

Y Li, C Liu, W Li, Y Chai - Applied Mathematics and Computation, 2023 - Elsevier
In the earlier paper, it is known that the solution accuracy usually can not be monotonically
increased as the temporal discretization interval decreases when the standard finite element …

An efficient hybrid collocation scheme for vibro-acoustic analysis of the underwater functionally graded structures in the shallow ocean

Q Xi, Z Fu, M Zou, C Zhang - Computer Methods in Applied Mechanics and …, 2024 - Elsevier
In this paper, a novel hybrid collocation scheme based on the generalized finite difference
method (GFDM) and the Burton–Miller singular boundary method (BMSBM) is developed to …

Transient analyses of wave propagations in nonhomogeneous media employing the novel finite element method with the appropriate enrichment function

T Sun, P Wang, G Zhang, Y Chai - Computers & Mathematics with …, 2023 - Elsevier
An enriched finite element approach with appropriate enrichment function is proposed for
the transient analyses of wave propagations in nonhomogeneous media. In present method …

Generalized finite difference method for electroelastic analysis of three-dimensional piezoelectric structures

H Xia, Y Gu - Applied Mathematics Letters, 2021 - Elsevier
This short communication makes the first attempt to apply the generalized finite difference
method (GFDM), a newly-developed meshless collocation method, for the numerical …

An efficient localized Trefftz-based collocation scheme for heat conduction analysis in two kinds of heterogeneous materials under temperature loading

Q Xi, Z Fu, C Zhang, D Yin - Computers & Structures, 2021 - Elsevier
This paper presents a novel localized collocation Trefftz method (LCTM) for heat conduction
analysis in two kinds of heterogeneous materials (functionally graded materials and multi …

[PDF][PDF] Integrating Krylov deferred correction and generalized finite difference methods for dynamic simulations of wave propagation phenomena in long-time intervals

W Qu, H Gao, Y Gu - Adv. Appl. Math. Mech, 2021 - global-sci.com
In this paper, a high-accuracy numerical scheme is developed for long-time dynamic
simulations of 2D and 3D wave propagation phenomena. In the derivation of the present …

A localized collocation solver based on fundamental solutions for 3D time harmonic elastic wave propagation analysis

L Sun, Z Fu, Z Chen - Applied Mathematics and Computation, 2023 - Elsevier
This paper presents the localized collocation solver based on fundamental solutions to 3D
elastic wave propagation analysis. In the proposed collocation solver, the approximated …

The extrinsic enriched finite element method with appropriate enrichment functions for the Helmholtz equation

Y Chai, K Huang, S Wang, Z Xiang, G Zhang - Mathematics, 2023 - mdpi.com
The traditional finite element method (FEM) could only provide acceptable numerical
solutions for the Helmholtz equation in the relatively small wave number range due to …