SAMCEF > Building a Model > Introduction to Building a Model
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Introduction to Building a Model
There are many aspects to building a finite element analysis model. In several cases, the forms used to create the finite element data are dependent on the selected analysis code and analysis type. Other parts of the model are created using standard forms.
Under preferences from the main form in MSC Patran, there is a selection entitled Analysis. The Analysis Preference form accessed by that selection identifies/defines the analysis code which is to be used for
this model.
The specified code may be changed at any time during model creation. As much data as possible will be converted if the analysis code is changed after the modeling process has already begun. However, the user must check that the analysis codes support identical or equivalent functionality. If they don’t, the translation may be approximate.
The setting of the Analysis Preference determines what will be presented to the user in several areas during the subsequent modeling steps.
These customized areas include the material and element libraries (including multi-point constraints), the applicable loads and boundary conditions, and the analysis forms. The selected Analysis Type may also affect the allowable selections in these same areas. For more details, see Analysis Codes (p. 434) in the Patran Reference Manual.
The following table lists the SAMCEF structural element types which are supported by the SAMCEF Analysis Preference.
Element Types
Element Types
Description
MASS
Mass
17
0D Fourier Beam
18
1D Fourier Shell
169
1D Fourier Membrane
21
Mindlin Rod
22
Mindlin Beam
30
1D Membrane (axisymmetric)
48
1D Shell (axisymmetric)
13
2D Solid (Fourier)
14
2D Solid (Fourier)
15
Membrane (Plane) or 2D Solid (Axisymmetric/Plane Strain)
26
Membrane (Plane) or 2D Solid (Axisymmetric/Plane Strain)
28
2D Shell (Mindlin)
29
2D Shell (Mindlin)
57
Membrane
58
Membrane
  8
Hexagonal Solid or Thick Shell
46
Wedge Solid or Thick Shell
47
Tetrahedral Solid
 
Note:  
The Hybrid formulation is still supported for compatibility reasons but is no longer enhanced.
The following table lists the element supported in a Thermal analysis
 
Element Types
Description
222
31
Pipe
Rod or Axisymmetric Membrane
224,223
34,35
Shell
Membrane or Axisymmetric volume
39
105
106
Brick Solid or Thick Shell
Prism
Tetrahedral