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This command requests the calculation of principal stress as defined in Appendix H of the User Manaual Appendices. The components are `P1', `P2', `P3' or `ALL'.
The calculation will be performed on the current result attribute which must contain a stress matrix.
| Component | Sort | Comments |
| ALL | ||
| P1 | NOSORT | No sort of the components is made. |
| P2 | ||
| P3 | ||
| 2DSORT | The components are sorted so that with a 2D model | |
| having one principal stress of zero this value is | ||
| discarded and the other two are sorted such that when | ||
| requesting `P1' the user will get `PMAX' and when | ||
| requesting `P2' the user will get `PMIN', where | ||
`PMAX'  `PMIN'. | ||
| 3DSORT | The components are sorted so that when requesting | |
| `P1' the user will get `PMAX', when requesting `P2' the | ||
| user will get `PMID' and when requesting `P3' the user | ||
| will get `PMIN', where `PMAX' `PMID' `PMIN'. |
Examples:
The P1 component of principal stress is calculated for the current result attribute. PMAX will be given.
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