AbsDisp

Absolute Displacement

This converger tests the following norm,

$$\left|\mathbf{U}\right|⩽tol.$$

where $\mathbf{U}$ denotes the total displacement of the system (with all trial displacement increments accounted). This means

$$\mathbf{U}={\mathbf{U}}_n+\sum _{i=1}^k\mathrm{\Delta }{\mathbf{U}}^i,$$

where ${\mathbf{U}}_n$ denotes the converged displacement at the beginning of current sub-step and $\mathrm{\Delta }{\mathbf{U}}^i$ denote all displacement increments/corrections generated by all iterations of the sub-step.