- #1
ella_lei9
- 10
- 0
How to calculate 3D Principal stresses?
If I got the values of 6 stress tensors:
Then I can calculate the values for the 3 stress invariants I1, I2 and I3:
I also know the relationship between the stress invariants and principal stresses:
So how can I calculate the values for the 3 principal stresses?
I can find some simple stress calculator on-line to get the results straight away, but I need the algorithm step for the calculation. In the other word, I need the individual equations for S1, S2 and S3, then I can do the calculation myself without using any software calculator or speardsheet!
Thanks a lot!
If I got the values of 6 stress tensors:
Then I can calculate the values for the 3 stress invariants I1, I2 and I3:
I also know the relationship between the stress invariants and principal stresses:
So how can I calculate the values for the 3 principal stresses?
I can find some simple stress calculator on-line to get the results straight away, but I need the algorithm step for the calculation. In the other word, I need the individual equations for S1, S2 and S3, then I can do the calculation myself without using any software calculator or speardsheet!
Thanks a lot!