MATT8
Bulk Data Entry Specifies temperature-dependent material properties on MAT8 entry fields via TABLEMi or TABLEG entry.
Format
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| MATT8 | MID | T(E1) | T(E2) | T(NU12) | T(G12) | T(G1Z) | T(G2Z) | T(RHO) | |
| T(A1) | T(A2) | T(Xt) | T(Xc) | T(Yt) | T(Yc) | T(S) | |||
| T(GE) | T(F12) |
Example
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| MATT8 | 17 | 32 | 15 | ||||||
| 15 | 52 |
Definitions
| Field | Contents | SI Unit Example |
|---|---|---|
| MID | Material property identification number
that matches the identification number on MAT1 entry. (Integer > 0) |
|
| T(E1) | Identification number of a
TABLEMi or TABLEG entry for the Young's
modulus 1. (Integer ≥ 0 or blank) |
|
| T(E2) | Identification number of a
TABLEMi or TABLEG entry for the Young's
modulus 2. (Integer ≥ 0 or blank) |
|
| T(NU12) | Identification number of a
TABLEMi or TABLEG entry for the Poisson's
ratio 12. (Integer ≥ 0 or blank) |
|
| T(G12) | Identification number of a
TABLEMi or TABLEG entry for shear modulus
12. (Integer ≥ 0 or blank) |
|
| T(G1Z) | Identification number of a
TABLEMi or TABLEG entry for transverse shear
modulus 1Z. (Integer > 0 or blank) |
|
| T(G2Z) | Identification number of a
TABLEMi or TABLEG entry for transverse shear
modulus 2Z. (Integer ≥ 0 or blank) |
|
| T(RHO) | Identification number of a
TABLEMi or TABLEG entry for mass
density. (Integer ≥ 0 or blank) |
|
| T(A1) | Identification number of a
TABLEMi or TABLEG entry for the thermal
expansion coefficient 1. 3 (Integer or blank) |
|
| T(A2) | Identification number of a
TABLEMi or TABLEG entry for the thermal
expansion coefficient 2. (Integer or blank) |
|
| T(Xt) | Identification number of a
TABLEMi or TABLEG entry for the tension
stress/strain limit 1. (Integer ≥ 0 or blank) |
|
| T(Xc) | Identification number of a
TABLEMi or TABLEG entry for compression
stress/strain limit 1. (Integer ≥ 0 or blank) |
|
| T(Yt) | Identification number of a
TABLEMi or TABLEG entry for tension
stress/strain limit 2. (Integer ≥ 0 or blank) |
|
| T(Yc) | Identification number of a
TABLEMi or TABLEG entry for compression
stress/strain limit 2. (Integer ≥ 0 or blank) |
|
| T(S) | Identification number of a
TABLEMi or TABLEG entry for shear
stress/strain limit. (Integer ≥ 0 or blank) |
|
| T(GE) | Identification number of a
TABLEMi or TABLEG entry for structural
damping coefficient. (Integer ≥ 0 or blank) |
|
| T(F12) | Identification number of a
TABLEMi or TABLEG entry for Tsai-Wu
interaction term. (Integer ≥ 0 or blank) |
Comments
- Fields 3, 4, and so on of this entry correspond, field-by-field, to fields 3, 4, and so on of the MAT8 entry referenced in field 2. The value in a particular field of the MAT8 entry is replaced (if TABLEM1 or TABLEG is used) or modified (if TABLEM2/3/4 is used) by the table referenced in the corresponding field of this entry. In the example shown, E1 is modified by TABLEMi 32; A1 is modified by TABLEMi 15; and Xt is modified by TABLEMi 52. Blank or zero entries mean that there is no temperature dependence of the fields on the MAT8 entry.
- The MATT8 entries may refer to blank entries on the respective MAT8 card. In which case, they will be applied to default values of respective parameters.
- Temperature-dependent materials can be activated at the subcase level via different options (such as TEMP(MAT), TEMP(BOTH), DLOAD (via TLOAD1, TLOAD2 and TEMP/TEMPD Bulk Data Entries), etc.) depending on the subcase type.
- With TABLEM1 or TABLEG, the respective field on MAT8 will be replaced by the table data on MATT8. With TABLEM2/3/4, the respective field of MAT8 will be modified by the table data.
- For temperature-dependent material table lookup for an element with different temperatures at each node, the average temperature of all nodes of the element is considered as reference temperature for table lookup for that particular element.
- This card is represented as a material in HyperMesh.