MATF1
Bulk Data Entry Specifies frequency-dependent material properties on MAT1 entry fields via TABLEDi entries.
Format
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| MATF1 | MID | T(E) | T(G) | T(NU) | T(RHO) | T(A) | T(GE) | ||
| T(ST) | T(SC) | T(SS) |
Example
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| MATF1 | 17 | 32 | 17 | 53 |
Definitions
| Field | Contents | SI Unit Example |
|---|---|---|
| MID | Material property identification number that
matches the identification number on the
MAT1 entry. (Integer > 0) |
|
| T(E) | A
TABLEDi entry identification
number for the Young's modulus. (Integer ≥ 0 or blank) |
|
| T(G) | A
TABLEDi entry identification
number for the shear modulus. (Integer ≥ 0 or blank) |
|
| T(NU) | A
TABLEDi entry identification
number for the Poisson's ratio. (Integer ≥ 0 or blank) |
|
| T(RHO) | A
TABLEDi entry identification
number for the mass density. (Integer ≥ 0 or blank) |
|
| T(A) | A
TABLEDi entry identification
number for the thermal expansion
coefficient. (Integer or blank) |
|
| T(GE) | A
TABLEDi entry identification
number for the damping coefficient. (Integer ≥ 0 or blank) |
|
| T(ST) | A
TABLEDi entry identification
number for the tension stress limit. (Integer ≥ 0 or blank) |
|
| T(SC) | A
TABLEDi entry identification
number for the compression limit. (Integer ≥ 0 or blank) |
|
| T(SS) | A
TABLEDi entry identification
number for the shear limit. (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 MAT1 entry referenced in field 2. The value in a particular field of the MAT1 entry is replaced or modified by the table referenced in the corresponding field of this entry. In the example shown, E is modified by TABLEDi 32, RHO is modified by TABLEDi 17 and GE is modified by TABLEDi 53. Blank or zero entries mean that there is no frequency dependence of the field on the MAT1 entry.
- The MATF1 entries may refer to blank entries on the respective MAT1 card. In this case, they will be applied to default values of respective parameters. Initial values of E, G, or NU will be supplied according to comment 4 on the MAT1 entry.
- Table references must be present for each item that is frequency dependent. For example, it is not sufficient to only give table references for fields 3 and 4 (Young's modulus and shear modulus) if density is also frequency dependent.
- In Modal Frequency Response Analysis, the frequency-dependency is only used in the frequency response part of the solution, not in the modal analysis part of the solution.
- This card is represented as a material in HyperMesh.