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--- doc:user:tutorials:ownfemodel [2015/01/09 12:58] – created boman
+++ doc:user:tutorials:ownfemodel [2018/10/05 10:10] (current) – boman
@@ Line 1: / Line 1: @@
-====== How to build my own FE model? [new] ======
+====== How to build my own FE model? ======
+<note important>This page is under construction. Please refer to {{ :teaching:private:tutorial.pdf |}}  for up-to-date information</note>
+{{:doc:user:ico-worker.png?40 |Under construction}}
 Crushing of a block made of steel by a cylindrical punch
 {{:doc:user:tutorials:crushing.png|}}
+What is written in the file tutorial1.py ?
+  * An input file of Metafor is a python module which contains a function getMetafor(p)
+  * This function is supposed to create a Metafor object
+  * The Metafor object is the main object containing everything about a FE simulation (geometry, mesh, boundary conditions, materials, integration scheme, etc.)
+{{:doc:user:tutorials:getmetafor.png|}}
+Main idea:
+The input file creates a complete data structure and returns it to the FE code
+Data structure of a model
+{{:doc:user:tutorials:datastructure.png|}}
+First lines – header of the file
+<code>
+# -*- coding: latin-1; -*-
+# $Id: tutorial1.py 1875 2014-01-02 10:10:56Z boman $
+########################################
+#   tutorial 1                         #
+#--------------------------------------#
+#   geometrie 2D etat plan defo        #
+#   materiau elastoviscoplastique      #
+#           a écrouissage isotrope     #
+#   definition outil                   #
+#   contact rigide-defo collant        #
+#   archivage + visu courbes           #
+########################################
+# Tutorial
+from wrap import *
+import math
+</code>
+  * coding:latin1 is required for French accentuated characters
+  * miscellaneous comments
+  * import the C++/python interface of the program (remember the wrap folder in the installation tree)
+  * import the math module of python for later use
+<code>
+metafor = Metafor()
+domain = metafor.getDomain()
+def getMetafor(p={}): return metafor
+</code>
+{{ :doc:user:tutorials:datastr01.png|At that point, the data structure simply looks like this}}
+Creation of an instance of the Metafor class
+(for now it is almost empty)
+We name it metafor
+Any Metafor object contains a Domain object.
+We retreive the Domain and we name it domain
+We define the getMetafor() function (same for all models)