Hi
Once again i’ve tested how PrePomax is “user friendly”; even if i’ve no doubt about the accuracy of the interface, i wanted to test a well known test case: a thick cylinder under pressure.
Equations for the radial/tangential stress are:
Hand calculation using Excel:
2 test cases have been modelled under PrePomax:
- the cylinder axis coincides with the Z axis
- the cylinder is rotated and its axis is different from Z accordingly
For the 2nd test case, i noticed how it’s very easy to create the local (cylindrical) coordinates system using 3 nodes 
Obviously the results are identical in the 2 test cases and they follow the theory … once again it highlights how PrePomax is easy to use: congratulation for the Team 
Screenshots:
Test 1: sigma_rr
test 1: sigma_tt
test2: sigma_rr
test2: sigma_tt
Input files:
TubeQuarter.pmx (4.1 MB)
TubeQuarter2.pmx (8.3 MB)
