====== CPL2D ======
Plane or axisymmetric state
===== Description =====
{{  :elements:plxnt.png?400|}} 
Thermomechanical analysis in large deformation with or without metallurgy (in static or dynamic). \\ \\
The element is defined by 3, 4, 6, or 8 nodes specified in NODES according to the order indicated in the figure. \\
\\
Type: 202 \\
Implemented by: M. Bourdouxhe, 1985 - Last revised by Charlier & Radu, 1993
==== Files ====
Prepro: CPL2DA.F \\
Lagamine: CPL2DB.F

===== Input file =====
^Title (A5)^^
|TITLE|"CPL2D" in the first 5 columns|
^Control data (3I5)^^
|NELEM|Number of elements|
|INDPP| 0 → No specific weight \\ 1 → Specific weight taken into account (or in dynamic analysis)|
|INSIG| = 0 No initial stresses \\ = 1 Initial stresses |
^Only if INDPP = 1 (4G10.0)^^
|WSPE(1)| = specific weight in X direction|
|WSPE(2)| = specific weight in Y direction|
|WSPE(3)| = constant heat source|
|WSPE(4)| = density| 
^Initial stresses - Only if INSIG = 1 (3G10.0)^^
|SIGY0|$\sigma_{y0}$ effective stress $\sigma_y$ at the axis origin|
|DSIGY|Specific weight along Y axis|
|AK0|$k_0$ ratio $\sigma_x/\sigma_y$|
^Definition of the elements (5I5/8I5)^^
|NNODE|Number of nodes: 3, 4, 6, 8 - in generalized plane state, one must impose NNODE = 8 and define only the first 8 nodes. The 9th node should not be included|
|NINTE|Number of integration points (1, 3, 4, 7 or 9)|
|LMAT1|Mechanical material law (in case of metallurgical analysis, number of the ARBTHMET law)|
|LMAT2|Thermal material law (in general LTHNLS or THMET for metallurgical analysis)|
|LMAT3|Metallurgical material law (number of the METAMEC law) - put 0 if no metallurgical law|
|NODES(NNODE)| List of nodes|

===== Results =====
The results are in order: first the stresses, then the state variables for each integration point. \\ This gives:
Without metallurgy:
  * NINTE (for each point) * sigma (in global axes): $\sigma_x$, $\sigma_y$, $\sigma_{xy}$, $\sigma_z$, $f_x$, $f_y$, $f_{capacitive}$, $f$ due to $\varepsilon^p$
  * NINTE * (internal variables): internal variable of the mechanical law
With metallurgy:
  * NINTE (for each point) * sigma (in global axes): $\sigma_x$, $\sigma_y$, $\sigma_{xy}$, $\sigma_z$, $f_x$, $f_y$, $f_{capacitive}$, $f_{phase change}$, $0$ 
  * NINTE * (internal variables): internal variable of the mechanical law, percentage of AU, PR, PE, BA, MA, Scheil sum, heat dissipated through phase change, $\lambda$, $\rho c$, indic., $0$