Why is the Total Reaction Force Zero in My Ansys Hoop Analysis?

Click For Summary
SUMMARY

The discussion centers on an Ansys hoop analysis involving a 550mm diameter and 7mm thick structural steel hoop subjected to a 1mm displacement. The calculated stress is 730 MPa, but the total reaction force is reported as 0.0004 N, which is considered too low. The user concludes that the total reaction force approximates zero due to the symmetrical nature of the hoop, where each force vector has a corresponding negative vector at another node. To obtain accurate results, the user suggests plotting the results at a quarter of the face and multiplying by four.

PREREQUISITES
  • Ansys simulation software knowledge
  • Understanding of structural steel properties
  • Familiarity with hoop stress analysis
  • Basic principles of force vector analysis
NEXT STEPS
  • Explore Ansys hoop stress analysis techniques
  • Learn about force vector resolution in structural analysis
  • Investigate methods for interpreting Ansys simulation results
  • Study the effects of symmetry in finite element analysis
USEFUL FOR

Mechanical engineers, structural analysts, and anyone involved in finite element analysis using Ansys, particularly those working with hoop structures and stress analysis.

mcan884
Messages
2
Reaction score
0
i am working on a hoop and its 550mm diameter, 7mm thickness. I applied 1mm displacement from its upper face which is normal to its direction.Stress is 730Mpa which is normal but the total reaction force is 0.0004N which is too low. where do i make the mistake.Material is structural steel.
problem is shown here.
http://imageshack.us/photo/my-images/607/97873466.png/
 
Engineering news on Phys.org
it's weird there is no reply to my post.Maybe ıts because ı am not a native speaker and couldn't tell my problem.But at last I understand the problem. Total force approximates zero since its a hoop and total force should be zero.Each force vector has its negative at another node. when you plot the results at the quarter of the face and multiply it four times you get the true results.
 

Similar threads

Replies
43
Views
5K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 11 ·
Replies
11
Views
4K
  • · Replies 19 ·
Replies
19
Views
3K
Replies
3
Views
3K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 5 ·
Replies
5
Views
5K
Replies
4
Views
9K