A locking-free virtual element method for the three-dimensional quasi-static electroporoelasticity equations
Year: 2026
Type: preprint
Abstract: We develop and analyze a locking-free virtual element method for the three-dimensional quasi-static electroporoelasticity equations. The pressure, electric, magnetic, and displacement fields are discretized by the lowest-order nodal, edge, face, and Stokes-like virtual element spaces, respectively, so that the scheme works on general polyhedral meshes, while the temporal discretization is carried out by a backward Euler scheme. The locking phenomenon is overcome by defining the Stokes-like space on a refined mesh $\widetilde{\mathcal{T}}_h$, on which we can construct an interpolation operator $\mathrm{I}_s$ satisfying $÷(\mathrm{I}_s\bm v)|_K=Π^K_0÷\bm v$, which renders the error estimates independent of the Lamé constant $λ$. Moreover, since the exact sequence $\curl\bm V^e_h=\bm V^f_{h,0}$ holds, the magnetic field is updated explicitly, reducing the four-field system to a three-field one and lowering the computational cost. Numerical experiments are provided to demonstrate the performance of the proposed method.
Source: arXiv (Cornell University)
Authors: Huang, Jianguo, Wang, Wenxuan
Institution: Shanghai Jiao Tong University
Language: English
Subfield: Computational Mechanics
Field: Engineering
Domain: Physical Sciences
Open Access status: green
Award: G5929858119
OpenAlex ID: W7220955504