Analysis of a ${\mathbf{P}}_1\oplus {\mathbf{RT}}_0$ finite element method for linear elasticity with Dirichlet and mixed boundary conditions

Hongpeng Li, Xu Li, Hongxing Rui

In this paper, we investigate a low-order robust numerical method for the linear elasticity problem. The method is based on a Bernardi--Raugel-like $\mathbf{H}(\mathrm{div})$-c…