Simulating contacts between 2 Rubber material bodies. How can I evaluate E for the rubber so that I can roughly estimate the contact Stiffness?
Consider E for the rubber material portion as: E = 6(a+b) where a and b are the first two Mooney-Rivlin contants Return to Top 40. While using NTN contact elements between two (3D) surfaces, is there any recommended practice for meshing at those two surfaces? Meshing between the two sides were varying along X. Surface 1 – – – – – – – – — — — — — — — Y $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ | – – – – – – – – — — — — — — — |___ X finer coarser Surface 2 $ sign indicates the Node-To-Node Contact Element between the Nodes of Surface 1 and 2 respectively. If you observe the mesh variation along X direction, it has varied from Finer to coarser. In such situations, use of a uniform Kn value for all the N-T-N contact elements could lead to un-even contact pressures. It is advisable to specify different values of Kn. If this step was not taken care of, then the finely meshed portion will experience more stiffness compared to the coarsely meshed portion. To avoid these issues,
