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laws:meta
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META
Description
Constitutive law of metallurgical phase transformations in solids without mechanical interaction (law called directly by PL8TM in Lagamine).
The model
Prediction of metallurgical phase transformations for a given evolution of the temperature field.
Files
Prepro: LMETA.F
Availability
| Plane stress state | YES |
| Plane strain state | YES |
| Axisymmetric state | YES |
| 3D state | YES |
| Generalized plane state | YES |
Input file
Parameters defining the type of constitutive law
| Line 1 (2I5, 60A1) | |
|---|---|
| IL | Law number |
| ITYPE | 312 |
| COMMENT | Any comment (up to 60 characters) that will be reproduced on the output listing. |
Integer parameters
| Line 1 (6I5) | |
|---|---|
| NDPO | Maximum degree of polynomials |
| NT1 | Maximum number of proeutectoid |
| NT2 | Temperatures in the pearlite |
| NT3 | Data tables related to bainite |
| IJKL | Phase code: = 0 the phase does not exist = 1 the phase can appear I = proeutectoid J = pearlite K = bainite L = martensite |
| IMETA | Code defining the order of the material parameters |
Real parameters
| Line 1 (2G10.0) | |
|---|---|
| ALAMB | initial heat conductivity ($\lambda_o$) |
| RHOC | initial heat capacity per unit volume ($\rho c_o$) |
These parameters are to be given at the initial temperature and for the initial metallurgical composition of the solid.
Number of stresses
5
Meaning
| SIG(1) | current volume fraction of austenite |
| SIG(2) | current volume fraction of proeutectoïd |
| SIG(3) | current volume fraction of pearlite |
| SIG(4) | current volume fraction of bainite |
| SIG(5) | current volume fraction of martensite |
State variables
Number of state variables
6
List of state variables
| Q(1) | SCHEIL's sum |
| Q(2) | current hardness |
| Q(3) | heat generated by phase transformations |
| Q(4) | current heat conductivity ($\lambda$); its initial value is $\lambda_o$ |
| Q(5) | current heat capacity per unit volume ($\rho_o$); its initial value is $\rho c_o$ |
| Q(6) | incubation code = 0 : SCHEIL's sum computed normally = 1 : SCHEIL's sum multiplied by a germination factor (FINCU) |
Special file
laws/meta.txt · Last modified: 2020/08/25 15:46 (external edit)
