Learning Forum

[Sumaya061]

In the following attached file for the static structural B the error message shows that the mpc contact region and boundary conditions have conflicts. I tried to understand the reason by reviewing initial information in the contact tool and solver output where it shows the presence of gap/ penetration. I used the pinball region as auto detection value hoping that would sort the gap/ penetration problem. And I used mpc formulation as suggested in another discussion to be ensured if bonded connections have established. But at the end it also doesn't solve it resulting the error and unconverged solution. Can someone kindly suggest me the possible solution and make correction in the attached file?

https://drive.google.com/file/d/1KG8QYWNISE0fKX_aGrZO9JMF-Z_xfZwh/view?usp=drive_web

[1shan]

Hello Array nIt looks like your mesh is highly segmented with lots of edges. It would be a good choice to use virtual topology to merge these small surfaces, so as to create a better mesh (which might be one of the reasons for non - convergence). Check out this link on how to create a virtual topology https://www.youtube.com/watch?v=u5zceTG5DnE. After doing this also make sure that the mesh is sufficiently refined on the contact faces. The bonded contact is a linear type, any reason why you are doing a non-linear analysis ? If not you could switch the large deformation option off. nHere's a link to ANSYS help troubleshooting documentation - https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v194/wb_sim/ds_Prob_Situations.htmlnnRegards,nIshan.nhttps://forum.ansys.com/discussion/3978/how-to-access-the-ansys-online-helpn

[Sumaya061]

nThanks a lot for the suggestions. I am gonna attempt the mesh refinement options as you suggested.nThe analysis of the model was non-linear type. I kept the large deformation on because during the solution process I got the warning to keep it on as also suggested in this regard. nIn this case should I also change the bond type from linear to non linear? nThanks in advance.n