How to Run a Non-Linear Rubber Simulation: Bidirectional Sealing System Walkthrough

You already know rubber breaks linear FEA in three ways at once: large strain, near-incompressibility, and frictional contact. What you probably don’t want to hear is that most first-time non-linear runs of a sealing system diverge inside ten minutes, usually because the contacts close badly, the hyperelastic parameters were copied from a textbook, or the result controls were never set. This walkthrough fixes all three.