bending¶

Mesh bending force classes apply a force and virial to every mesh vertex particle based on the local curvature $K$ of the given mesh triangulation.

U_\mathrm{mesh bending} = \sum_{j \in \mathrm{mesh}} U_{j}(K(\mathbf{r}_j))

The curvature at each vertex particle $j$ is determined at its position $\mathbf{r}_j$ .