I am Solving a pressure vessel problem with internal pressure and the Covers bolted on to the housing. Currently all the contacts are defined as bonded (MPC). the assembly is placed on a plate which is in turn fixed, and bonded contact is defined between the vessel legs and the plate. The pretension in the bolts is 50000N given in 4 steps ( 1000N,15000, 30000, 50000). also each step is divided into minimum 50 substeps. But am getting the above error when the solver reaches the second step (15000). The UX direction in the error is along the axis of the bolt, i am unable to track the offending body as i was not able to track the pretension node through ansys ACT extension.
Try to divide the problem into separate pretension steps and this may help you isolate the cause of the fault.
Mr Osama,
I found out the error body by solving the partial model at a time, error body was a bolt. i suppressed that body and gave a full run and i could solve it. However i couldnt identify what was wrong as the definition was similar to all other bolts too.
Do you mean to say divide the pretension and apply in steps?.
thank you
There could be something wrong with the geometry of this bolt, such as two lines not meeting (where they should meet). You can try either to examine the geometry carefully or copy one of the other bolts and paste it instead of this bolt then mesh it and solve.
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