Input Data

From KratosWiki
(Difference between revisions)
Jump to: navigation, search
Line 20: Line 20:
 
  ...
 
  ...
 
   [NodeId,  X,  Y,  Z],
 
   [NodeId,  X,  Y,  Z],
  ])
+
  ])
  
 
for example:
 
for example:
Line 56: Line 56:
  
 
== Elemental Connectivities File ==
 
== Elemental Connectivities File ==
This file must have the <tt>.elem</tt> extension with following format:
+
This file must have the <tt>.elem</tt> extension and defines the elements with following format:
  
 
  ELEMENTS[ElementId] = ElementName([NodeId1,NodeId2, ..,NodeIdn],PropertiesId);
 
  ELEMENTS[ElementId] = ElementName([NodeId1,NodeId2, ..,NodeIdn],PropertiesId);
Line 68: Line 68:
 
  ELEMENTS[5] = TotalLagrangian2D3N([18,26,24],2);
 
  ELEMENTS[5] = TotalLagrangian2D3N([18,26,24],2);
 
  ELEMENTS[6] = TotalLagrangian2D3N([26,36,33],2);
 
  ELEMENTS[6] = TotalLagrangian2D3N([26,36,33],2);
 +
 +
 +
== Conditions File ==
 +
This file must have the <tt>.cond</tt> extension and defines the fixed dofs in each node and boundary conditions. The fixed dofs can be define in following form:
 +
 +
NODES[NodeId].Fix(VariableName);
 +
 +
For example
 +
NODES[27].Fix(DISPLACEMENT_X);
 +
NODES[27].Fix(DISPLACEMENT_T);
 +
NODES[29].Fix(PRESSURE);
 +
 +
The boundary conditions can be defined similar to the elements by their connectivity as follow:
 +
 +
CONDITIONS[ConditionId] = ConditionName([NodeId1,NodeId2, ..,NodeIdn],PropertiesId);
 +
 +
For example:
 +
 +
CONDITIONS[1176] = Face2D([684,678],1);
 +
CONDITIONS[1175] = Face2D([693,684],1);
 +
CONDITIONS[1176] = Face2D([684,678],1);

Revision as of 10:39, 5 May 2008

The current input data consist of five archives with followin extensions:

  • .node for the nodal coordinates
  • .prop which containes the elemental properties
  • .elem for elemental connectivities
  • .cond containing conditions connectivities and node's fixed dofs
  • .init for nodal initial values

All files are free format and the reading is not depend to the spaces, tabs, endlines etc.


Contents

Nodal Coordinates File

This file must have the .node extension with following format:

NODES = NodesList([
[NodeId,   X,   Y,   Z],
[NodeId,   X,   Y,   Z],
...
...
...
 [NodeId,   X,   Y,   Z],
  ])

for example:

NODES = NodesList([
[1,   0.05000,   0.00000,   0.00000],
[2,   0.05000,   0.01000,   0.00000],
...
...
...
[1000,   0.00000,   1.00000,   0.00000]
])

The NodeIds can be noconsequtive and also not in order, however the ordered input can improve the reading time.


Properties File

This file must have the .prop extension with following format:


PROPERTIES[PropertiesId][ScalarVariableName] =  Value
PROPERTIES[PropertiesId][VectorialVariableName] =  [Value1, Value2, Value3]
PROPERTIES[PropertiesId][MatricialVariableName] =  [[Value11, Value12, Value13],
                                                    [Value21, Value22, Value23],
                                                    [Value31, Value32, Value33]]

For example:

PROPERTIES[1][END_TIME] =   0.1;
PROPERTIES[1][DELTA_TIME] = 0.001;
PROPERTIES[2][DENSITY] = 2700.000000; 
PROPERTIES[2][YOUNG_MODULUS] = 7000000.000000;
PROPERTIES[2][GRAVITY] = [-39.5, 0.00, 0.00];


Elemental Connectivities File

This file must have the .elem extension and defines the elements with following format:

ELEMENTS[ElementId] = ElementName([NodeId1,NodeId2, ..,NodeIdn],PropertiesId);

For example:

ELEMENTS[1] = TotalLagrangian2D3N([1,2,3],1);
ELEMENTS[2] = TotalLagrangian2D3N([2,6,4],1);
ELEMENTS[3] = TotalLagrangian2D3N([6,11,8],1);
ELEMENTS[4] = TotalLagrangian2D3N([11,18,17],2);
ELEMENTS[5] = TotalLagrangian2D3N([18,26,24],2);
ELEMENTS[6] = TotalLagrangian2D3N([26,36,33],2);


Conditions File

This file must have the .cond extension and defines the fixed dofs in each node and boundary conditions. The fixed dofs can be define in following form:

NODES[NodeId].Fix(VariableName);

For example

NODES[27].Fix(DISPLACEMENT_X);
NODES[27].Fix(DISPLACEMENT_T);
NODES[29].Fix(PRESSURE);

The boundary conditions can be defined similar to the elements by their connectivity as follow:

CONDITIONS[ConditionId] = ConditionName([NodeId1,NodeId2, ..,NodeIdn],PropertiesId);

For example:

CONDITIONS[1176] = Face2D([684,678],1);
CONDITIONS[1175] = Face2D([693,684],1);
CONDITIONS[1176] = Face2D([684,678],1);
Personal tools
Categories