Finite elements for divdiv-conforming symmetric tensors in three dimensions

L Chen, X Huang - arXiv preprint arXiv:2007.12399, 2020 - arxiv.org
Two types of finite element spaces on a tetrahedron are constructed for divdiv conforming
symmetric tensors in three dimensions. The key tools of the construction are the …

An efficient finite-element method and error analysis for the fourth-order elliptic equation in a circular domain

N Peng, C Wang, J An - International Journal of Computer …, 2022 - Taylor & Francis
In this paper, we propose an efficient finite-element method based on dimension reduction
scheme to solve the fourth-order elliptic equation in a circular domain. First of all, by using …

A novel spectral method and error estimates for fourth-order problems with mixed boundary conditions in a cylindrical domain

J Zheng, W Cao, J An - Computers & Mathematics with Applications, 2023 - Elsevier
In this paper, a novel spectral method is presented and studied for the fourth order problem
with mixed boundary in a cylindrical domain. The basic idea of our approach is to reduce the …

Finite element analysis for general elastic multi-structures

J Huang, Z Shi, Y Xu - Science in China Series A, 2006 - Springer
A finite element method is introduced to solve the general elastic multi-structure problem, in
which the displacements on bodies, the longitudinal displacements on plates and the …

A Legendre spectral‐Galerkin method for fourth‐order problems in cylindrical regions

J Zheng, J An - Numerical Methods for Partial Differential …, 2024 - Wiley Online Library
A spectral‐Galerkin method based on Legendre‐Fourier approximation for fourth‐order
problems in cylindrical regions is studied in this paper. By the cylindrical coordinate …

A hybridizable discontinuous Galerkin method for Kirchhoff plates

J Huang, X Huang - Journal of Scientific Computing, 2019 - Springer
With the introduction of numerical traces respectively related to the normal bending moment,
the twisting moment and the effective transverse shear force, and based on the Hermann …

Mixed Variational Formulation of Coupled Plates

J Hu, Z Liu, R Ma, R Wang - arXiv preprint arXiv:2403.18217, 2024 - arxiv.org
This paper proposes a mixed variational formulation for the problem of two coupled plates
with a rigid {junction}. The proposed mixed {formulation} introduces {the union of} stresses …

The virtual element method for a nonhomogeneous double obstacle problem of Kirchhoff plate

F Feng, J Huang - Nonlinear Analysis: Real World Applications, 2023 - Elsevier
This paper is intended to propose and analyze the lowest order conforming and
nonconforming virtual element methods (VEMs) for a nonhomogeneous double obstacle …

An efficient finite element method and error analysis for fourth order problems in a spherical domain

N Peng, J Han, J An - Discrete and Continuous Dynamical Systems …, 2022 - aimsciences.org
An efficient finite element method for the fourth order problems in a spherical domain will be
solved in this paper. Initially, we derive the necessary pole conditions with the intention of …

Vibration analysis for elastic multi‐beam structures by the C0‐continuous time‐stepping finite element method

J Lai, J Huang, Z Shi - International Journal for Numerical …, 2010 - Wiley Online Library
Some C0‐continuous time‐stepping finite element method is proposed for investigating
vibration analysis of elastic multi‐beam structures. In the time direction, the C0‐continuous …