The improved stress averaging algorithm applies to linear dynamic
studies.
Before you run a linear dynamic study, in the Results
Options PropertyManager, click Average
stresses at mid-nodes (high-quality solid mesh only).
For a high-quality solid element, the stresses at the mid-side nodes are
calculated by averaging the stress values at the adjacent corner nodes. This stress
averaging method improves the calculation of stresses at mid-side notes for tetrahedral
elements with high aspect ratios.
Example:
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- Stresses at corner nodes (1, 2, 3, and 4)
globally averaged over the shared elements.
- Stresses at mid-side nodes (5, 6, 7, 8, 9,
and 10) averaged over the associated corner nodes. For
example, stress (node 5) = (stress (node 1) + stress (node
2)) / 2
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