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126 • Using ansys for finite element analysis
5. Element material properties:
As shown in the previous examples, select:
Preprocessor > Material Props > Material models > Structural >
Linear > Elastic > Isotropic
We are going to give the properties of steel. Enter the following when
prompted:
EX 200000
PRXY 0.3
(Alternatively, the command line code for the above step is
MP,EX,1,200000 followed by MP,PRXY,1,0.3.)
6. Mesh size:
To tell ANSYS how big the elements should be,
Preprocessor > Meshing > Size Cntrls > Manual Size > Areas > All
Areas
Select an element edge length of 25. We will return later to determine
whether this was adequate for the problem. (Alternatively, the command
line code for the above step is AESIZE,ALL,25.)
7. Mesh:
Now the frame can be meshed. In the Preprocessor menu, select:
Meshing > Mesh > Areas > Free
And, select the area when prompted.
(Alternatively, the command line code for the above step is
AMESH,ALL.) You should now have the following:
