z88setsactive.txt no description in the theory guide

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normandajc
Import
Beiträge: 10
Registriert: Sa 10. Sep 2016, 06:31

z88setsactive.txt no description in the theory guide

Beitrag von normandajc »

I use triangle to generate mesh
https://github.com/drufat/triangle
http://dzhelil.info/triangle/
http://www.cs.cmu.edu/~quake/triangle.html

I use z88aurora and I must create the following files :
z88structure.txt, z88sets.txt, z88setsactive.txt and z88control.txt
I have create also this file z88i1.txt, z88i2.txt, z88i5.txt, z88elp.txt, z88mat.txt, z88man.txt
but z88aurora import only this file z88i1.txt, z88i2.txt, z88i5.txt

I write a small python program to generate this file. Test.py

I have several errors and it 's very difficicult to create the file z88setsactive.txt

when I read the file of the example 18.18 Rectangular Plate with 16 nodes of the book Finite Element Analysis for Engineers, I don't understand several terms

6
#NODES CONSTRAINT 1 1 1 11 1 1 0.000000E+000 "Const1"
#NODES CONSTRAINT 1 2 2 11 2 1 0.000000E+000 "Const2"
#NODES CONSTRAINT 1 3 3 11 2 3 -7.143000E+003 "Const3"
#NODES CONSTRAINT 1 4 4 11 2 3 7.143000E+003 "Const4"
#ELEMENTS ELEMENTGEO 1 5 5 9 1.000000E+001 "Geometrie1"
#ELEMENTS MATERIAL 1 6 6 2 "Baustahl"

#NODES CONSTRAINT 1 1 1 11 1 1 0.000000E+000 "Const1"
1 for active
1 to enumerate
1 to enumerate in the file z88sets.txt
11 ???
1 I suppose that is for displacement x=0
1 ????
0.000000E+000 value of the displacement

#ELEMENTS ELEMENTGEO 1 5 5 9 1.000000E+001 "Geometrie1"
1 for active
5 to enumerate
5 to enumerate in the file z88sets.txt
9 ???
1.000000E+001 value of the thichness
Dateianhänge
example_the_book_b18.zip
(5.44 KiB) 104-mal heruntergeladen
triangleRun.zip
(4.47 KiB) 102-mal heruntergeladen

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mz15
Site Admin
Beiträge: 264
Registriert: Do 5. Aug 2010, 19:23

Re: z88setsactive.txt no description in the theory guide

Beitrag von mz15 »

Hello normandajc,

How to write correctly, there is no description for the files z88setactive and z88sets because they are administrative files of Z88Aurora. This structure may change, depending on how we need it during implementation of new functionalities.
As you have already recognized correctly only the files Z88I1, Z88I2 and Z885 imported. With these all data are available for a project. Only the material and possibly the element thickness (for plates or shells) must be set again.
To import the geometry and boundary conditions the files Z88I1, Z88I2 and Z885 are sufficient.

But to complete your list

#NODES CONSTRAINT 1 1 1 11 1 1 0.000000E+000 "Const1"
1 for active
1 to enumerate
1 to enumerate in the file z88sets.txt
11 simulation case (11=linear mechanics)
1 I suppose that is for displacement x=0
1 the kind of boundary condition (1=displacement)
0.000000E+000 value of the displacement

#ELEMENTS ELEMENTGEO 1 5 5 9 1.000000E+001 "Geometrie1"
1 for active
5 to enumerate
5 to enumerate in the file z88sets.txt
9 (the kind of geometry, rectangle, circle,..., I think 9=thickness)
1.000000E+001 value of the thichness

Please note that the values can change without notice in the following versions.

greetings
mz15

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