Abstract
In the present work a tire is modeled by using geometrically exact shells. The discretization is done with the help of isoparametric quadrilateral finite elements. The interpolation is performed with linear Lagrangian polynomials for the midsurface as well as for the director field. As time stepping method for the resulting differential algebraic equation a modified backward differential formula rule is chosen. To handle the interaction with a rigid road surface, a one sided normal contact formulation is introduced. An orthotropic material model for geometrically exact shells derived from 3D continuum theory is introduced, to describe the anisotropic behavior of the tire material. Inflation pressure is taken into account with a configuration dependent force. The interaction between the multibody system of a car and the tire is realized via co-simulation. Some quasi-static simulations are presented and compared to measurements on a real tire.
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