Relationship between Temperature Change and External Work and Stress for Urethane Rubber under Compression Cycle

Abstract

The purpose of this study is to clarify the relationship between the compressive deformation of urethane rubber and the temperature change. Repeated compression tests were conducted at seven stroke speeds from 45 mm /min to 10 mm/min. A theoretical formula of temperature change was considered two factor: one calculates the temperature from the increment of external work, and another calculates the temperature from the change of compressive stress as the thermoelastic effect. As a result, the faster stroke speed was, the stronger the influence of external work became. And the slower stroke speed was, the stronger the influence of thermoelastic effect became.