Shell Element Temperature Field, Form 1
Description: Defines a temperature field for shell elements (by an average temperature and a thermal gradient through the thickness) for determination of thermal loading and stress recovery.
Format:
Example:
Alternate Format and Example of Continuation Entry:
| Field | Definition | Type | Default |
|---|---|---|---|
| SID | Temperature set identification number. | Integer > 0 | Required |
| EIDi, EIDj, EIDk | Element identification number(s). | Integer > 0; EID2 < EIDi, EIDj < EIDk | Required |
| T | Average temperature through the thickness. Assumed constant over area. | Real | Required |
|
Effective linear thermal gradient through thickness. Assumed constant over area. | Real | Required |
| T1, T2 | Temperatures used to determine average temperature through the thickness and linear thermal gradient, if not specified in fields 4 and 5. | Real | Required if T and
are not specified
|
Remarks:
- SET ID must be unique with respect to all other LOAD type entries if TEMPERATURE is specified in the Case Control Section.
- Only CQUAD4, CQUADR, CTRIA3, or CTRIAR elements may have a temperature field applied to them via this entry.
- If continuation entries are present, EID1 and elements specified on the continuation entry are used.
- Elements must not be specified more than once.
- If thermal effects are requested, all elements must have a temperature field defined either directly on a TEMPP1 or TEMPRB entry, or indirectly as the average of the connected grid point temperatures defined on the TEMP or TEMPD entries. Directly defined element temperatures always take precedence over the average of grid point temperatures.
- For temperature field other than a constant gradient, the "effective gradient" for a homogeneous plate is:
where I is the bending inertia and z is the distance from the neutral surface in the positive normal direction.
- The average temperature for a homogeneous plate is:
