OOF2: The Manual
| SecondInvariant (SecondInvariant) | ||
|---|---|---|
|
6.5.2. Subclasses |  |
Name
SecondInvariant (SecondInvariant) — Second invariant of a symmetric tensor.
Synopsis
SecondInvariant()
Description
SecondInvariant is one of the Invariants
of a symmetric three dimensional rank 2 tensor quantity that can
be computed by the OOF2 Outputs.
The second invariant of a three dimensional symmetric rank 2
tensor 
is
![\[
A_{11}A_{33} + A_{11}A_{22} + A_{22}A_{33} -
A_{12}^2 - A_{13}^2 - A_{23}^2.
\]](equations/6.5.2-inf-2.gif)
|
|
 |
|
| Schoenflies (Schoenflies) |  |
Selected Elements (SelectedElements) |