Torsion in a cylinder with crack
Torsion in a cylinder with crack
(OP)
Hi,
I want to do an ANSYS analysis of a cylinder with a crack, subjected to torsion. I need to obtain the Stress intensity factor and simulate plastification.
I tried to simulate the load with MPC184 and a master-node with torsor moment. I also tried applying direct loads on the cover nodes, but in both cases the results were not good.
Which is the best way of simulating this case? Element type? How to apply loads?
I want to do an ANSYS analysis of a cylinder with a crack, subjected to torsion. I need to obtain the Stress intensity factor and simulate plastification.
I tried to simulate the load with MPC184 and a master-node with torsor moment. I also tried applying direct loads on the cover nodes, but in both cases the results were not good.
Which is the best way of simulating this case? Element type? How to apply loads?





RE: Torsion in a cylinder with crack
RE: Torsion in a cylinder with crack
I attach the macro. It contains other stuff in order to calculate the limit load, but the most important for me right now is the SIF.
The results are not good because they don't correspond with the ETM analytical solution...
RE: Torsion in a cylinder with crack
else use a handbook, like Rooke & Cartwright
RE: Torsion in a cylinder with crack
However, I can't use a handbook. The purpose is to simulate the SIF.
RE: Torsion in a cylinder with crack
if you're got Al E = 10E6psi = 69GPa
RE: Torsion in a cylinder with crack
Furthemore, the non-linear analysis is not necessary to calculate the Stress Intensity Factor.
Thanks anyway, I continue with my research...