I am performing a simulation of a cylindrical rubber tube under internal pressure. The maximum pressure that can be reached is -1 bar. At a pressure of -0.27 bar, self-contact occurs and continues to occur until the maximum pressure is reached.
When visualizing the CSTRESS, the contour shows maximum contact stress along a LINE at the middle of the surface where the contact takes place. The stress seems to be concentrated on a single line instead of around the surface.
Can someone please tell me the significance of CTRESS and what it represents in self-contact?
What elements are you using? How rough/course is your mesh? CPRESS is simply the contact pressure. You can also look at CNAREA which gives you the nodal contact area to help judge the plausibility of the simulation.
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