Material Property Checks for MAT3
MAT3 only applies to axisymmetric elements.
| Material Requirements | MAT3 |
|---|---|
| Mathematical | If EX = 0, ETH = 0, EZ = 0
or NUXTH * NUTHX + NUTHZ * NUZTH + NUZX * NUXZ + 2 * NUXTH * NUTHZ * NUZX = 1, an error termination will occur. 1 |
| Semi-stability | If EX < 0, ETH < 0,
EZ < 0 or GZX < 0, an error termination will
occur. PARAM,CHECKMAT,NO will disable this error. |
| Not all zeros | If GZX = 0, a warning is provided. |
| Consistency | none |
Comments
- By substitution of
(1) NUXTHEX=NUTHXETH, NUXZEX=NUZXEZ, NUTHZETH=NUZTHEZinto
NUXTH * NUTHX + NUTHZ * NUZTH + NUZX * NUXZ + 2 * NUXTH * NUTHZ * NUZX = 1,
it can be expressed in terms of(2) NUXTH2*ETHEX+NUTHZ2*EZETH+NUZX2*EXEZ+2*NUXTH*NUTHZ*NUZX=1