Difference between revisions of "Contrib:KeesWouters/shell/static"
(→'''Definition of the geometry''') |
(→'''Definition of the geometry''') |
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| Line 43: | Line 43: | ||
[[Image:Geom-01-big.gif]] <br> | [[Image:Geom-01-big.gif]] <br> | ||
---- | ---- | ||
| − | Create all points and lines using: ''[New Entity]->[Basic}->[Point]'' and ''[New Entity]->[Basic]->[Line]'' <br> | + | '''Create all points and lines using:''' ''[New Entity]->[Basic}->[Point]'' and ''[New Entity]->[Basic]->[Line]'' <br> |
[[Image:Points%26lines.gif]] | [[Image:Points%26lines.gif]] | ||
---- | ---- | ||
| − | Create one big face Ftotal ''[New Entity]->[Build]->[Face]'' <br> | + | '''Create one big face Ftotal''' ''[New Entity]->[Build]->[Face]'' <br> |
Ftotal: Line7,Line6,Line8,Line12,Line11,Line10,Line9,Line1 <br> | Ftotal: Line7,Line6,Line8,Line12,Line11,Line10,Line9,Line1 <br> | ||
[[Image:One-face.gif]] | [[Image:One-face.gif]] | ||
---- | ---- | ||
| − | Create three wires ''[New Entity]->[Build]->[Wire]'' <br> | + | '''Create three wires''' ''[New Entity]->[Build]->[Wire]'' <br> |
* Wire1: Line3,Line4,Line5 <br> | * Wire1: Line3,Line4,Line5 <br> | ||
* Wire2: Line17,Line18,Line19 <br> | * Wire2: Line17,Line18,Line19 <br> | ||
| Line 56: | Line 56: | ||
[[Image:wires.gif]] | [[Image:wires.gif]] | ||
---- | ---- | ||
| − | Create vector ''[New Entity]->[Basic]->[Vector]'' <br> | + | '''Create vector''' ''[New Entity]->[Basic]->[Vector]'' <br> |
(0,0,1) <br> | (0,0,1) <br> | ||
Create four extrusions ''[New Entity]->[Generation]->[Extrusion]'' <br> | Create four extrusions ''[New Entity]->[Generation]->[Extrusion]'' <br> | ||
| Line 72: | Line 72: | ||
how: we define planes<br> | how: we define planes<br> | ||
| − | Create partition ''[Operations]->[Partition]'' <br> | + | '''Create partition''' ''[Operations]->[Partition]'' <br> |
* Part_main: Ftotal,Extrusion1,Extrusion2,Extrusion3,Extrusion4 <br> | * Part_main: Ftotal,Extrusion1,Extrusion2,Extrusion3,Extrusion4 <br> | ||
[[Image:Part-main.gif]] | [[Image:Part-main.gif]] | ||
Revision as of 13:00, 7 March 2010
Contents
Static analysis of a shell construction
[ .... under construction .... ]
This contribution is in close cooperation with Bridge.
In this example the following items are discussed:
- preproccesing:
- definition of geometry in Salome
- partitioning of the geometry and groups
- meshing of the geometry
- definition of the groups
- (maybe: python script which makes editing much easier ...)
- static analysis with pressure or force applied on a group or nodes
- postprocessing:
- viewing displacement in Salome
- determination of stresses
- interface ASTK
Definition of the geometry
planar shell
Geometry:
- L = 11.38 m
- Thickness = 0.55 m
Loads:
[type] [group] [value]
- Presure1 (Fbot) = 29.5e3 Pa
- Presure2 (Fmain)= 25.8e3 Pa
- Presure3 (Ftop) = 24.3e3 Pa
- Presure4 (Fcentre1,Fcentre2)= 182.6e3 Pa
Boundary conditions:
- Lbot (DX=0.0, DY=0.0, DZ=0.0)
- Ltop (DZ=0.0)
Material:
Concrete
- E = 32e9 Pa
- Nu = 0.2
Create all points and lines using: [New Entity]->[Basic}->[Point] and [New Entity]->[Basic]->[Line]
Create one big face Ftotal [New Entity]->[Build]->[Face]
Ftotal: Line7,Line6,Line8,Line12,Line11,Line10,Line9,Line1
Create three wires [New Entity]->[Build]->[Wire]
- Wire1: Line3,Line4,Line5
- Wire2: Line17,Line18,Line19
- Wire3: Line13,Line14,Line15,Line16
Create vector [New Entity]->[Basic]->[Vector]
(0,0,1)
Create four extrusions [New Entity]->[Generation]->[Extrusion]
- Extrusion1: Wire1,vz
- Extrusion2: Wire2,vz
- Extrusion3: Wire3,vz
- Extrusion4: Line2,vz
Partitioning of the geometry
why: we need groups for loads and boundary conditions
how: we define planes
Create partition [Operations]->[Partition]
- Part_main: Ftotal,Extrusion1,Extrusion2,Extrusion3,Extrusion4
Meshing
how
tria -quad?
linear vs quadratic elements
