A method of simulating deformation of a rubber material with a filler part
made of one filler particle and a rubber part surrounding the filler pan,
comprises the steps of: dividing the rubber material into a finite number
of elements to form a rubber material model; performing deformation
calculation of the rubber material model based on a predetermined
condition; and acquiring necessary data from the deformation calculation;
wherein the step of dividing includes the steps of: dividing the filler
part into a finite number of elements to form a filler model; and
dividing the rubber part into a finite number of elements to form a
rubber model disposed around the filler model, the rubber model having
strain-rate dependence such that the viscoelastic property varies with
strain rate thereof.