Page 164 - Using ANSYS for Finite Element Analysis A Tutorial for Engineers

stAtIc AnAlysIs usIng Volume elements • 151
8. Define loads and boundary conditions. Apply an internal pressure of
1,000 psi and displacement constraints that prevent points moving
across planes of symmetry and also restrain rigid body movement
in the y-direction.

Preprocessor → Loads → Define Loads → Apply → Structural →
Displacement → Symmetry B.C. → On Areas → Pick the radial sur-
face parallel to x-y plane → Apply → Pick the radial surface parallel to
y-z plane → OK

Preprocessor → Loads → Define Loads → Apply → Structural →
Displacement → On Areas → Pick top (or bottom) surface → OK →
Select degree of freedom constraint UY → OK

Use Cntl + Right Mouse button to rotate the solid so as to get a
better view of the area you want to pick. It may also help to activate the
area numbers and plot them. Then, pick the area number of interest, for
example:
PlotCntls → Numbering . . . turn area numbers ON Plot → Areas
Preprocessor → Loads → Define Loads → Apply → Structural →
Pressure → On Areas: Pick the inner area of the cylinder. Enter a
pressure of 1000 → OK