Hi All,
I'm relatively new to non-linear analysis, I've got an analysis that won't converge.
Analysis: I'm looking at a hopper, determining if the proposed design will withstand the hydrostatic and weight loads of the application. I've taken planes of symmetry about 2 planes. I've run a linear static analysis just to confirm the contacts are working correctly etc, but with the nature of the design, out of plane bending (stress stiffening) is going to be the major factor, hence the need for non linear.
Non-Linear: The analysis is diverging on the first iteration, with load at 1%. I've checked the specific grid points where the max displacement and incremental rotation were occurring, it appeared to be in the middle of one of the sheets, i.e. not near a specific constraint or contact. I've messed around with the mesh sizes quite a bit, to no avail.
See drop box link below, any assistance would be much appreciated.
https://www.dropbox.com/t/5V7Xji8FXKkX6mkW
Kind Regards
Roydon Mackay
