Principal Stress
The following principal stress data can be contoured.
SIGMA 1:
Sigma 1 option will plot the contours of the MAJOR PRINCIPAL STRESS.
SIGMA 3:
Sigma 3 option will plot the contours of the MINOR PRINCIPAL STRESS.
SIGMA 2:
Sigma 2 is the intermediate principal stress which is always between Sigma 1 and Sigma 3.
VON MISES STRESS:
The Von Mises Stress is given by:
Where J is given by:
Mean Stress:
The mean stress (p), is the average of principle stresses and is given by: