Energy absorption in polymeric foams. II. Prediction of impact behavior from instron data for foams with rate‐dependent modulus

Abstract

Impact behavior can be predicted for rate‐dependent foams from constant rate of strain response. The response must be factorized into a rate‐dependent modulus function and a strain‐dependent function. In this way the rate‐dependent modulus can vary throughout the impact as the velocity of the impacting object decreases.