Patent ID: 7292966

Claim:
A method of simulating deformation of a rubber material having a filler part made of at least one filler particle and a rubber part surrounding the filler part, comprising the steps of: dividing the rubber material into a finite number of elements to form a rubber material model; the step of dividing including the steps of dividing the filler part into a finite number of elements to form a filler model; dividing the rubber part into a finite number of elements to form a rubber model disposed around the filler model, said rubber model having strain-rate dependence such that the viscoelastic property varies with strain rate thereof, and wherein the rubber model comprises an interface model having a thickness in a range of from 1 to 20 mm and contacting around the filler model and a matrix model disposed outside of the interface model, said interface model having a viscoelastic property softer than that of the matrix model; performing deformation calculation of the rubber material model based on predetermined condition; acquiring data relating to a distribution of physical values of the rubber model from the deformation calculation; and providing a display of the data.