1 answer

• 
  Sudhir Gill about 1 year ago

  In general, a finite element solution may be broken into the following three stages.
  1. Preprocessing: defining the problem;
  - Define keypoints/lines/areas/volumes
  - Define element type and material/geometric properties
  - Mesh lines/areas/volumes as required
  2. Solution: assigning loads, constraints and solving;
  3. Postprocessing:
  - Lists of nodal displacements
  - Element forces and moments
  - Deflection plots
  - Stress contour diagrams
  In this tutorial we will go through first and seecond step here.

  1. Step 1

     Start Mechanical APDL.

     

  2. Step 2

     Click Preferences and select Structural. Click OK.

     

  3. Step 3

     Under Preprocessor goto >> Element Type >> Add/Edit/Delete.

     

  4. Step 4

     Click Add and then select 3D finit stn. Click OK and then close.

     

  5. Step 5

     Under Real constants click Add/Edit/Delete.

     

  6. Step 6

     Click Add and then define Area = .1. Click OK and Click Close.

     

  7. Step 7

     Under Material Props >> Material Models.

     

  8. Step 8

     Under Structural >> Linear >> Elastic >> Isotropic.

     

  9. Step 9

     Input EX=200e9 and PRXY=0.3. Click OK and then close Material Model window.

     

  10. Step 10

      Goto Preprocessor >> Modeling >> Create >> Keypoints >> In Active CS.

      

  11. Step 11

      Input Keypoint 1 = (0,0,0)

      

  12. Step 12

      Input Keypoint 2 = (0.8,1.5,0) & 3 = (2.8,0,0)

      

  13. Step 13

      Goto Modeling >> Create >> Lines >> Lines >> In active Coord to create lines.

      

  14. Step 14

      Select keypoints and create lines. Click OK after done.

      

  15. Step 15

      Goto Meshing >> Size Controls >> Manual Size >> Lines >> All lines.

      

  16. Step 16

      Input No. of element divisions = 1. Click OK.

      

  17. Step 17

      Goto Meshing >> Mesh >> lines.

      

  18. Step 18

      Click Pick all.

      

  19. Step 19

      Now save the job. Click File >> Save as.

      

  20. Step 20

      Save the job.

      

  21. Step 21

      Under Solution select Analysis type >> New analysis.

      

  22. Step 22

      Select Static and click OK.

      

  23. Step 23

      Goto Define Loads >> Apply >> Structural >> Displacement >> On Keypoints.

      

  24. Step 24

      Select both keypoints.

      

  25. Step 25

      Select All UX,UY and UZ. Click OK.

      

  26. Step 26

      Goto Define loads >> Apply >> Structural >> Force/Moment >> On Keypoints.

      

  27. Step 27

      Select the top Keypoint. Click OK.

      

  28. Step 28

      Input Force = 2800. Direction be FX. Click OK.

      

  29. Step 29

      Now save the job.

      

  30. Step 30

      Goto Solution >> Solve >> Current LS.

      

  31. Step 31

      Click OK.

      

  32. Step 32

      Click Close.