Ansys Mechanical APDL lecture 5 by Haydar Alsalami from IRAQ - Hilla, studied in JNTUH - INDIA .

7/29/2019 Ansys Mechanical APDL lecture 5 by Haydar Alsalami from IRAQ - Hilla, studied in JNTUH - INDIA .

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1 | Haydar Alsalami \ JNTUH \ India mobile: 00919059070644Iraq mobile: 009647801518389 E-Mail: [email protected]

AXISYMMETRIC SOLIDS:

Axisymmetric concerns with a tube solid that has symmetry about

its own axis.The idea is to draw these

keypoints then Lines then

Area then rotate about

center line.


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- Axisymmetric Solid must be drawn vertically with Y-axis in (+ve)plane i.e first quarter, even we find the problem in Horizontal.

- There is a basic method for drawing and advanced method withextrude.

Now start with basic method:

Select SOLID :

Quad 4 node 182


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Select Axisymmetry

and there will be NO

Real Constants


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Draw keypoints vertically

with a suitable span from

Origin.


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Connect keypoints with

straight Lines.


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Create Areas Arbitrary

By Lines, then select all lines

and OK.

You will get this


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Meshing Size cntrls Manual

Size Lines Picked Lines,

For short lines divisions = 5

For long lines divisions = 30


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Apply Mapped mesh ( 3 or 4

sided ), pick the Area then OK


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Its important to put Displacement

constraints for equilibrium, else

there will no solution.

Apply Structural Displacement

Symmetry B.C. (On Lines), then

select upper and lower lines, then

OK, nothing will be appear but

constraints is done.

Symmetric Boundary Conditions must

be chosen if our problem concerns with

Symmetry orAxisymmetry.


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Apply Pressure on Line = 1e6

mean ( 1 Mpa )


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At last we have to Rotate this Area by

choosing 2D Axi-Symmetric , then

select Full Expansion


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This is the final drawing, also you can

get (1/4) expansion, (1/2) expansion,

(3/4) expansion.


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Ansys Mechanical APDL lecture 5 by Haydar Alsalami from IRAQ - Hilla, studied in JNTUH - INDIA .

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