GiD forum

Hello, all
I'm trying to load the result files into GID on 4 Gaussian point for
Quadrilateral element which have the stress information. Follwing text is
the header of my file. But it complains as "Node out of range: in this line:
10 - Reading Results". 1 and 2 are the element numbers. What is my mistake?
Could you give me some help?
thank you
=============================
GaussPoints "Quads" ElemType Quadrilateral
Number of Gauss Points: 4
Natural Coordinates: Internal
End gausspoints
GaussStress 2 1 "ealstic" 2 2 0 "Quads"
Sxx
Syy
Sxy
1 -52.9953 120.011 -13.7941
-49.9476 127.122 1.38544
3.18081 149.891 3.41724
0.13311 142.78 -11.7623
2 -43.1729 357.488 -40.3418
-25.4268 398.896 -20.8489
42.7981 428.135 -9.0182
25.052 386.728 -28.511
........
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~
Changho Choi
Department of Civil Engineering
Box 352700 More 132A
University of Washington phone: 206-729-3542 (H)
Seattle WA 98195 206-543-6778 (O)
206-543-1543 (fax)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Hello,

the problem are in this line:

GaussStress 2 1 "ealstic" 2 2 0 "Quads"

· first problem:
GaussStress 2 1 "ealstic" 2 2 0 "Quads"
^^^^^^^^^^^^^^^ - result name must be 15 characters long, unused chars shoul be filled with spaces
· second problem:
the analysis name should only be given when the load analysis number is 4, so
it shoulbe:
GaussStress 2 1 2 2 0 "Quads"
or
GaussStress 4 1 "ealstic" 2 2 0 "Quads"
·third problem:
GaussStress 4 1 "ealstic" 2 2 0 "Quads"
Sxx
Syy
Sxy
here you are specifying the name, description, for each component, so the last number
should be '1', not '0':
GaussStress 4 1 "ealstic" 2 2 1 "Quads"
Sxx
Syy
Sxy

the rest is o.k.

Note: for stress information, there is also a 'matrix' result type, besides the 'scalar' and 'vector' one.
these 'matrix' results are generally used for stress representations, . . .
GiD assumes that its a symmetrical, so only the upper right triangle must be entered:
for 2d matrices: Sxx Syy Sxy
for 3d matrices: Sxx Syy Szz Sxy Syz Sxz
GiD then calculates the main stresses.

more information under:
http://gid.cimne.upc.es/support/gid_16.html#SEC231

Note 2:
You can also use the 'new' postprocess format, usable up version 6.1.4b, and more comprehensible.
Your result would look like:

GiD Post Results File 1.0
GaussPoints "Quads" ElemType Quadrilateral
Number of Gauss Points: 4
Natural Coordinates: Internal
End gausspoints
# "ealstic"
Result "GaussStress" "ealstic" 1 Vector OnGaussPoints "Quads"
ComponentNames "Sxx", "Syy", "Sxy"
Values
1 -52.9953 120.011 -13.7941
-49.9476 127.122 1.38544
3.18081 149.891 3.41724
0.13311 142.78 -11.7623
2 -43.1729 357.488 -40.3418
-25.4268 398.896 -20.8489
42.7981 428.135 -9.0182
25.052 386.728 -28.511
End Values

or, if you use the 'matrix' result type:

GiD Post Results File 1.0
GaussPoints "Quads" ElemType Quadrilateral
Number of Gauss Points: 4
Natural Coordinates: Internal
End gausspoints
# "ealstic"
Result "GaussStress" "ealstic" 1 Matrix OnGaussPoints "Quads"
Values
1 -52.9953 120.011 -13.7941
-49.9476 127.122 1.38544
3.18081 149.891 3.41724
0.13311 142.78 -11.7623
2 -43.1729 357.488 -40.3418
-25.4268 398.896 -20.8489
42.7981 428.135 -9.0182
25.052 386.728 -28.511
End Values


a couple of images showing the result using following mesh:

MESH dimension 3 elemtype quadrilateral nnode 4
coordinates
1 0 0 0
2 1 0 0
3 2 0 0
4 2 1 0
5 1 1 0
6 0 1 0
end coordinates
elements
1 1 2 5 6
2 2 3 4 5
end elements

hope it helps,

miguel

Changho wrote:

Hello, all
I'm trying to load the result files into GID on 4 Gaussian point for
Quadrilateral element which have the stress information. Follwing text is
the header of my file. But it complains as "Node out of range: in this line:
10 - Reading Results". 1 and 2 are the element numbers. What is my mistake?
Could you give me some help?
thank you
=============================
GaussPoints "Quads" ElemType Quadrilateral
Number of Gauss Points: 4
Natural Coordinates: Internal
End gausspoints
GaussStress 2 1 "ealstic" 2 2 0 "Quads"
Sxx
Syy
Sxy
1 -52.9953 120.011 -13.7941
-49.9476 127.122 1.38544
3.18081 149.891 3.41724
0.13311 142.78 -11.7623
2 -43.1729 357.488 -40.3418
-25.4268 398.896 -20.8489
42.7981 428.135 -9.0182
25.052 386.728 -28.511
........
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~
Changho Choi
Department of Civil Engineering
Box 352700 More 132A
University of Washington phone: 206-729-3542 (H)
Seattle WA 98195 206-543-6778 (O)
206-543-1543 (fax)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

--
--------------------------------------------------------------------------------
Miguel A. de Riera Pasenau miguel at cimne.upc.es http://gid.cimne.upc.es
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