I resolved the tapered issue with the modify option now I have an even more puzzling problem. I am testing the model to see if the contact I set up is working, turns out only one part of the Geometry is sticking and I have not a clue why, I checked all my regions and the directions but for some reason it does not want to work, can anybody shed some light about this issue? I have uploaded some pictures of what the part is doing.
Solved! Go to Solution.
It´s clear you have a "penetration" problem caused by the prescribed OFFSET in shell elements, you can investigate in this direction: check in the contact property if the shell element z-offset is included in the contact solution o not (By default, ZOFFSET=0 and shell z-offsets are included. ZOFFSET=1 will prevent them from being included).
I don´t like at all to mix OFFSET & surface-to-surface contact, instead I suggest to play always with midsurfacing and use the "clasic" meshing strategies, my favorite one is using another Shell element instead of rigid elements.
Perhaps you should try to reverse one or both the connectors' Master vs Slave, given your centre plate is used for both sets of connectors. There could be an issue if the same sets of nodes are the targets for two sets of connectors. Also, I assume you have both positive and negative regions defined for the centre plate? You probably need both. If you have more than one glue property, the seach distance must bridge the midsurface-to-midsurface gap for both glue properties.
Lastly, when troubleshooting, use the "Generate Contact Preview file" option on the glue property. This creates a simple nastran .bdf of the glue/contact interactions which have been found. You can import that into a new model (File -> Import -> Analysis Model) to see what NX Nastran found as interfaces from the setup of your glue properties, regions and connectors.