Learning Forum

[BenjaminStarling]

ArraynThe bodies will remain deformable, I would have just increased their young's modulus by 10x or 100x to ensure they are not deforming too much. The advantage of using a rigid body is that it allows the solver to only use the elements required for the contact (i.e. less elements). Other than this there is no advantage to using a rigid body in your analysis, or many other analyses. If we switch to using a deformable body, our solution time may suffer, or even preprocessing time to split bodies and mesh etc., if we use an appropriately sized/fine mesh. Because we know we are not interested in results on the rollers for your analysis, we can then decide to mesh coarsely, to save pre processing time and solution time, but this will effect the contact accuracy and possibly even convergence. Contact geometry correction allows the user to specify a cylindrical surface through a coordinate system and radius which helps smooth the contact across the discretised mesh.nIn both instances, rigid or deformable, contact geometry correction could have been utilised, as even the rigid body requires the contact elements to be created, however the rigid body can have the contact elements meshed much finer than the deformable body.n