Fig. 15
From: An unstructured immersed finite element method for nonlinear solid mechanics
Results for unstructured mesh. Convergence of the Neumann problem on the unstructured mesh for fixed \(x_\delta = \frac{6}{7}\) (left) and the matrix condition number for various boundary locations \(0.8 \le x_\delta \le 0.9\) (right)