Patent ID: 7050952

Claim:
A computer implemented method of designing rubber composite comprising the steps of: tentatively selecting a shape of the rubber composite, a shape of each part (i) constituting the rubber composite and physical properties of a rubber material used for each part (i) respectively; dividing the rubber composite into many finite elements and calculating strain in each element by the finite element method to obtain maximum principal strain (ε i ) max of the elements in each part (i); repeating the tentative selections of the shape of the rubber composite, the shape of each part (i) and the physical properties of the rubber material and the calculations by the finite element method until an allowance ratio S ia calculated as a ratio of strain (ε i ) b at break to the maximum principal strain (ε i ) max becomes equal to a specified reference allowance ratio S 0 or higher in all of the parts (i); and determining the shape of the rubber composite, the shape of each part (i) and the physical properties of the rubber material; wherein the reference allowance ratio S 0 is set in a range of 9 to 30.