Proposal of standard specimen for investigating mechanical behavior of rubbers

(Material test and material properties identification by organizations)

Abstract

Rubber is widely utilized in industries. However, material properties vary significantly depending on recipe and mixing / curing conditions. When conducting researches on mechanics of rubbers such as deformation, fracture and tribology, mechanical properties of the material being used in the research should be always examined. This is actually troublesome and causes difficulties in sharing results between researchers. Technical Section (A-TS03-29) in Materials and Mechanics Division of JSME proposed to establish a standard specimen with simplifying recipe and production method in order to share and promote researches on mechanics of rubbers. A standard Styrene-butadiene rubber specimen was made under a simple and open recipe and production method. The specimen was distributed in the members of Technical Section and its material properties were measured. This report provides the results of Poisson’s ratio measurement, identification of constitutive parameters, and uniaxial tensile test for the second batch specimen with the same recipe and procedure.