Landing and take-off operations are the most critical phases of an aircraft flight. Indeed, the high speed, the violent impact, and eventually bounces, when the aircraft touches the ground, the need of braking efficiently, the ground irregularities (the absence of landing runway for bush airplanes), the climatic conditions (snow, freeze, crosswind, contaminations, etc.) as well as other parameters can make these ground maneuvers very complex. In this paper, some numerical models are proposed for simulate the aircraft tire behavior on the ground in critical situations. Fully coupled thermo-mechanical analysis procedures taking into account visco-elasticity properties of the rubber, finite strains, dynamics, frictional contact and the roughness of the ground are proposed.