CST2013: Mechanical Nonlinear Solver Results Overview

Exactly like in the linear case, the nonlinear mechanical solver creates all results automatically after the simulation process was finished. This means it is not necessary to define any monitors in advance.

Displacement

The stationary displacement distribution is a 3D vector field which can be evaluated also on a 2D cut-plane. Another possibility to visualize the displacement field is to switch to the Deformed Mesh plot by selecting "2D/3D ResultsDisplacementDeformed Mesh" in the Navigation Tree.

Strain

The nonlinear mechanical solver computes two strain tensor distributions: Green-Lagrangian defined in the initial configuration and Almansi in the deformed configuration. For extremely small deformations, both of these tensors converge to the linear strain tensor. Single components of these tensors can be visualized as scalar plots. Besides, the volumetric strain is computed, which represents the relative local volume change due to deformation. The definitions of these strains can be found in Nonlinear Mechanical Solver Overview.

Stress

Again, two stress tensors are computed by the nonlinear mechanical solver. The 2nd Piola-Kirchhoff stress tensor is defined in the initial configuration. Its counterpart in the deformed configuration is the Cauchy stress tensor. Both of them are computed like described in Nonlinear Mechanical Solver Overview. Besides, the Cauchy stress tensor is employed to compute the 1st principal stress, von Mises and hydrostatic stress.

Besides, imported fields such as temperature or force densities are visualized, which makes it possible to estimate the quality of interpolation.

See also

Mechanical Solver Overview, Nonlinear Mechanical Solver Overview, Mechanical Linear Solver Result Overview, Post Processing Overview, Template Based Post Processing