MAT5
Bulk Data Entry Defines the thermal material properties for anisotropic materials.
Format
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
MAT5 | MID | KXX | KXY | KXZ | KYY | KYZ | KZZ | CP | |
RHO | HGEN |
Example
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
MAT5 | 2 | .300 | 100 | 200 | |||||
2e5 |
Definitions
Field | Contents | SI Unit Example |
---|---|---|
MID | Unique material identification.
No default (Integer > 0 or <String>) |
|
Kij | Thermal conductivity. Default = 0.0 (Real) |
|
CP | Heat
capacity per unit mass (specific heat). 4 (Real > 0.0 or blank) |
|
RHO | Density. 4 Default = 1.0 (Real > 0.0) |
|
HGEN | Heat
generation capability used with QVOL entries.
HGEN is the scale factor used
with
QVOL. HGEN is the scale factor and QVOL is the power generated per unit volume, Pin = volume * HGEN * QVOL Default = 1.0 (Real ≥ 0.0) |
Comments
- The material identification number/string may be the shared with structural material property definitions (MAT1, MAT2, MAT8, MAT9 or MGASK), but must be unique with respect to other thermal material property definitions (MAT4 or MAT5).
- String based labels allow for easier visual identification of materials, including when being referenced by other cards. (example, the MID field of properties). For more details, refer to String Label Based Input File in the Bulk Data Input File.
- The
thermal conductivity matrix has the following form:
(1) K=[KXXKXYKXZKXYKYYKYZKXZKYZKZZ] - Heat capacity (CP) is defined per unit mass. It is multiplied by density (RHO) to calculate heat capacity matrix in transient heat transfer analysis. If RHO is not defined on MAT5, then positive density from a structural material entry with matching MID is used. If MAT5 does not have a corresponding matching structural material, then the default value of 1.0 is used.
- This card is represented as a material in HyperMesh.