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Table of Contents
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.1573746626.txt.gz · Last modified: 2020/08/25 15:35 (external edit)
