DERIVATION METHOD FOR CUSHIONING MATERIAL CHARACTERISTIC, CUSHIONING MATERIAL CHARACTERISTIC DERIVATION PROGRAM, AND CUSHIONING MATERIAL CHARACTERISTIC DERIVATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a derivation method for cushioning material characteristics that can obtain relation between maximum acceleration and static stress while greatly reducing the trouble to conduct an impact load test.;SOLUTION: A derivation method for cushioning material characteristics comprises: a step S1 of deriving relation between first energy E needed to deform a cushioning material and strain based upon relation between dynamic stress σ and the strain of the cushioning material; a step S2 of deriving strain such that second energy ε absorbed per unit volume of the cushioning material and the first energy E become equal to each other; a step S3 of deriving dynamic stress σ of the cushioning material corresponding to the value of the strain derived in the step S2; a step S4 of deriving maximum acceleration X applied to a packaged object based upon the value of the dynamic stress σ derived in the step S3; a step S5 of deriving static stress σ_s; and a step S6 of deriving relation between maximum acceleration X and static stress σ_s.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2018,JPO&INPIT