You can insert an Error result based on stresses to help you identify regions of high error and therefore show where the model would benefit from a more refined mesh in order to get a more accurate answer. You can also use the Error result to help determine where Mechanical will be refining elements if Convergence is active. The Error result is based on the same errors used in adaptive refinement. Information on how these errors are calculated is included in POST1 - Error Approximation Technique, in the Theory Reference.
Note:
The Error result is based on linear stresses and as such may be inaccurate in certain nonlinear analyses (for example, when plasticity is active). Furthermore, the Error result is currently restricted to isotropic materials. You may wish to refer to the Structural Material Properties section of the Engineering Data help for additional information.
A Error result does not support being scoped to a reinforcement element (REINF263, REINF264, or REINF265) and if selected, these elements would report a value of zero.
Presented below are example applications of using the Error result in a Structural simulation.
3D Model:
2D Model, Base Mesh:
2D Model, Adaptive Refinement (Convergence Added):
2D Model, With Mesh Control:
